Abstract

Optical filtering has been used to extend the reach of directly modulated laser in 10Gb/s WDM systems via two separate mechanisms: narrowing the broadened spectrum, and converting frequency modulation into useful amplitude modulation. We investigate in detail, the impact of asymmetric and narrowband optical filtering at the transmitter or receiver. Experimental demonstrations for both shorter distance and long-haul like transmission using optical filtering are performed. The transmission reach is nearly doubled from <25-km to >45-km without dispersion compensation. 1400-km error-free transmission (Q>15.6-dB) is further achieved over dispersion-managed link for a directly modulated DFB laser within an 8×10-Gb/s WDM system

© 2005 Optical Society of America

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  1. H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
    [CrossRef]
  2. A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
    [CrossRef]
  3. K. Sato, “Semiconductor light sources for 40-Gb/s transmission systems,” J. Lightwave Technol. 20, 2035–2043 (2002).
    [CrossRef]
  4. A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.
  5. K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.
  6. B. Wedding and W. Poehlmann, “43 Gbit/s transmission over 40.5 km SMF without optical amplifier using a directly modulated laser diode,” in Proc. ECOC, We2.6.6, Stockholm, Sweden, 2004.
  7. L. Illing and M. B. Kennel, “Shaping current waveforms for direct modulation of semiconductor lasers,” IEEE J. Quantum Electron. 40, 445–452 (2004).
    [CrossRef]
  8. K. Nakahara, T. Tsuchiya, T. Kitatani, K. Shinoda, T. Kikawa, F. Hamano, S. Fujisaki, T Taniguchi, E. Nomoto, M. Sawada, and T. Yuasa, “12.5-Gb/s Direct modulation up to 115°C in 1.3-µm InGaAlAs-MQW RWG DFB lasers with notch-free grating structure,” J. Lightwave Technol. 22, 159–165 (2004).
    [CrossRef]
  9. D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
    [CrossRef]
  10. M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
    [CrossRef]
  11. M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
    [CrossRef]
  12. P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
    [CrossRef]
  13. I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
    [CrossRef]
  14. H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
    [CrossRef]
  15. B. Wedding, B. Franz, and B. Junginger, “10-Gb/s optical transmission up to 253 km via standard single-mode fiber using the method of dispersion-supported transmission,” J. Lightwave Technol. 12, 1720–1727 (1994).
    [CrossRef]
  16. C. S. Wong and H. K. Tsang, “Improvement of directly modulated diode-laser pulse using an optical delay interferometer,” IEEE Photon. Technol. Lett. 16, 632–634 (2004).
    [CrossRef]
  17. G. Yabre, “Improved direct-modulation characteristics of a semiconductor laser by FM/IM conversion through an interferometer,” J. Lightwave Technol. 14, 2135–2140 (1996).
    [CrossRef]
  18. T. Nielsen and S. Chandresekhar, “OFC 2004 Workshop on Optical and Electronic Mitigation of Impairments”, J. Lightwave Technol. 23, 131–142 (2005).
    [CrossRef]
  19. A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
    [CrossRef]
  20. N. Yoshikane and I. Morita, “160% spectrally-efficient 5.12-Tb/s (64×85.4 Gb/s RZ DQPSK) transmission without polarization demultiplexing,” in Proc. ECOC, Postdeadline Th4.4.3, Stockholm, Sweden, 2004.
  21. M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
    [CrossRef]
  22. H.-Y. Yu, D. Mahgerefteh, P. S. Cho, and J. Goldhar, “Improved transmission of chirped signals from semiconductor optical devices by pulse reshaping using a fiber Bragg grating filter,” J. Lightwave Technol. 17, 898–903 (1999).
    [CrossRef]
  23. M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
    [CrossRef]
  24. T. L. Koch and R. A. Linke, “Effect of nonlinear gain reduction on semiconductor laser wavelength chirping,” Appl. Phys. Lett. 48, 613–615 (1986).
    [CrossRef]

2005 (1)

2004 (3)

C. S. Wong and H. K. Tsang, “Improvement of directly modulated diode-laser pulse using an optical delay interferometer,” IEEE Photon. Technol. Lett. 16, 632–634 (2004).
[CrossRef]

L. Illing and M. B. Kennel, “Shaping current waveforms for direct modulation of semiconductor lasers,” IEEE J. Quantum Electron. 40, 445–452 (2004).
[CrossRef]

K. Nakahara, T. Tsuchiya, T. Kitatani, K. Shinoda, T. Kikawa, F. Hamano, S. Fujisaki, T Taniguchi, E. Nomoto, M. Sawada, and T. Yuasa, “12.5-Gb/s Direct modulation up to 115°C in 1.3-µm InGaAlAs-MQW RWG DFB lasers with notch-free grating structure,” J. Lightwave Technol. 22, 159–165 (2004).
[CrossRef]

2003 (4)

H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
[CrossRef]

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
[CrossRef]

2002 (2)

K. Sato, “Semiconductor light sources for 40-Gb/s transmission systems,” J. Lightwave Technol. 20, 2035–2043 (2002).
[CrossRef]

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

2001 (1)

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

1999 (1)

1998 (1)

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

1997 (3)

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

1996 (1)

G. Yabre, “Improved direct-modulation characteristics of a semiconductor laser by FM/IM conversion through an interferometer,” J. Lightwave Technol. 14, 2135–2140 (1996).
[CrossRef]

1994 (2)

B. Wedding, B. Franz, and B. Junginger, “10-Gb/s optical transmission up to 253 km via standard single-mode fiber using the method of dispersion-supported transmission,” J. Lightwave Technol. 12, 1720–1727 (1994).
[CrossRef]

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

1986 (1)

T. L. Koch and R. A. Linke, “Effect of nonlinear gain reduction on semiconductor laser wavelength chirping,” Appl. Phys. Lett. 48, 613–615 (1986).
[CrossRef]

Agarwal, A.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Andonovic, I.

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

Banerjee, S.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Benzoni, A. M.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Boroditsky, M.

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

Boskovic, A.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Chandresekhar, S.

Cho, P. S.

Chung, H. S.

H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
[CrossRef]

Chung, Y. C.

H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
[CrossRef]

Cornwell, W. D.

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

Coskun, O.

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

Cu, X.

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

Das, S. K.

H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
[CrossRef]

Eggleton, B. J.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Ernst, R. G.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Feder, K. S.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Feuer, M. D.

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

Franz, B.

B. Wedding, B. Franz, and B. Junginger, “10-Gb/s optical transmission up to 253 km via standard single-mode fiber using the method of dispersion-supported transmission,” J. Lightwave Technol. 12, 1720–1727 (1994).
[CrossRef]

Fujisaki, S.

Gill, D. M.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Goldhar, J.

Grosz, D. F.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Gurevich, A.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Hallock, B.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Hamano, F.

Hesse, R.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Hirano, A.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

Huang, S. Y.

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

Illing, L.

L. Illing and M. B. Kennel, “Shaping current waveforms for direct modulation of semiconductor lasers,” IEEE J. Quantum Electron. 40, 445–452 (2004).
[CrossRef]

Jang, Y. G.

H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
[CrossRef]

Junginger, B.

B. Wedding, B. Franz, and B. Junginger, “10-Gb/s optical transmission up to 253 km via standard single-mode fiber using the method of dispersion-supported transmission,” J. Lightwave Technol. 12, 1720–1727 (1994).
[CrossRef]

Kelly, A. E.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

Kennel, M. B.

L. Illing and M. B. Kennel, “Shaping current waveforms for direct modulation of semiconductor lasers,” IEEE J. Quantum Electron. 40, 445–452 (2004).
[CrossRef]

Kikawa, T.

Kitatani, T.

Koch, T. L.

T. L. Koch and R. A. Linke, “Effect of nonlinear gain reduction on semiconductor laser wavelength chirping,” Appl. Phys. Lett. 48, 613–615 (1986).
[CrossRef]

Kung, A. P.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Kuwahara, S.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

Linke, R. A.

T. L. Koch and R. A. Linke, “Effect of nonlinear gain reduction on semiconductor laser wavelength chirping,” Appl. Phys. Lett. 48, 613–615 (1986).
[CrossRef]

Mahgerefteh, D.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

H.-Y. Yu, D. Mahgerefteh, P. S. Cho, and J. Goldhar, “Improved transmission of chirped signals from semiconductor optical devices by pulse reshaping using a fiber Bragg grating filter,” J. Lightwave Technol. 17, 898–903 (1999).
[CrossRef]

Marshall, W. K.

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

Maywar, D. N.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

McAdama, M.

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

Miyamoto, Y.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

Morgan, R. A.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Morita, I.

N. Yoshikane and I. Morita, “160% spectrally-efficient 5.12-Tb/s (64×85.4 Gb/s RZ DQPSK) transmission without polarization demultiplexing,” in Proc. ECOC, Postdeadline Th4.4.3, Stockholm, Sweden, 2004.

Morton, P. A.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Nakahara, K.

Nakano, J.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Nelson, L. E.

H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
[CrossRef]

Nielsen, T.

Nomoto, E.

Peral, E.

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

Poehlmann, W.

B. Wedding and W. Poehlmann, “43 Gbit/s transmission over 40.5 km SMF without optical amplifier using a directly modulated laser diode,” in Proc. ECOC, We2.6.6, Stockholm, Sweden, 2004.

Proenzano, D.

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

Reith, L. A.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Renty, R. V.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

Reyes, P. I.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Roudas, I.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Sato, K.

Sawada, M.

Shalom, H.

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

Sherlock, G.

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

Shinoda, K.

Shtengel, G. E.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Soto, K.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

Spirit, D. M.

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

Steinvurzel, P.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

Tanbun-Ek, T.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Taniguchi, T

Tatham, M. C.

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

Thiele, H. J.

H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
[CrossRef]

Tombling, C.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

Tomkos, I.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Tsang, H. K.

C. S. Wong and H. K. Tsang, “Improvement of directly modulated diode-laser pulse using an optical delay interferometer,” IEEE Photon. Technol. Lett. 16, 632–634 (2004).
[CrossRef]

Tsuchiya, T.

Tur, M.

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

Tzeng, L. D.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Vodhanel, R.

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

Wedding, B.

B. Wedding, B. Franz, and B. Junginger, “10-Gb/s optical transmission up to 253 km via standard single-mode fiber using the method of dispersion-supported transmission,” J. Lightwave Technol. 12, 1720–1727 (1994).
[CrossRef]

B. Wedding and W. Poehlmann, “43 Gbit/s transmission over 40.5 km SMF without optical amplifier using a directly modulated laser diode,” in Proc. ECOC, We2.6.6, Stockholm, Sweden, 2004.

Westbrook, L. D.

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

Westbrook, P. S.

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

White, I. H.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

White, J. K.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

Wonfor, A.

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

Wong, C. S.

C. S. Wong and H. K. Tsang, “Improvement of directly modulated diode-laser pulse using an optical delay interferometer,” IEEE Photon. Technol. Lett. 16, 632–634 (2004).
[CrossRef]

Wood, T. H.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

Woodward, S. L.

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

Yabre, G.

G. Yabre, “Improved direct-modulation characteristics of a semiconductor laser by FM/IM conversion through an interferometer,” J. Lightwave Technol. 14, 2135–2140 (1996).
[CrossRef]

Yadvish, R. D.

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Yariv, A.

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

Yoneyama, M.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

Yoshikane, N.

N. Yoshikane and I. Morita, “160% spectrally-efficient 5.12-Tb/s (64×85.4 Gb/s RZ DQPSK) transmission without polarization demultiplexing,” in Proc. ECOC, Postdeadline Th4.4.3, Stockholm, Sweden, 2004.

Yu, H.-Y.

Yuasa, T.

Zadok, A.

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

Appl. Phys. Lett. (3)

M. McAdama, E. Peral, D. Proenzano, W. K. Marshall, and A. Yariv, “Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating,” Appl. Phys. Lett.,  71, 879–881 (1997).
[CrossRef]

M. McAdama, D. Proenzano, E. Peral, W. K. Marshall, and A. Yariv, “Effect of transmission through fiber gratings on semiconductor laser intensity noise,” Appl. Phys. Lett. 71, 3341–3343 (1997).
[CrossRef]

T. L. Koch and R. A. Linke, “Effect of nonlinear gain reduction on semiconductor laser wavelength chirping,” Appl. Phys. Lett. 48, 613–615 (1986).
[CrossRef]

Electron Lett. (1)

P. A. Morton, G. E. Shtengel, L. D. Tzeng, R. D. Yadvish, T. Tanbun-Ek, and R. A. Morgan, “38.5 km error free transmission at 10 Gbit/s in standard fiber using a low chirp, spectrally filtered, directly modulated 1.55 µm DFB laser,” Electron Lett. 33, 310–311 (1997).
[CrossRef]

Electron. Lett. (2)

H. J. Thiele, L. E. Nelson, and S. K. Das, “Capacity-enhanced coarse WDM transmission using 10 Gbit/s sources and DWDM overlay,” Electron. Lett. 39, 1264–1266 (2003).
[CrossRef]

M. C. Tatham, X. Cu, L. D. Westbrook, G. Sherlock, and D. M. Spirit, “Transmission of 10 Gbit/s directly modulated DFB signals over 200-km standard fiber using mid-span spectral inversion,” Electron. Lett. 30, 1335–1336 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

L. Illing and M. B. Kennel, “Shaping current waveforms for direct modulation of semiconductor lasers,” IEEE J. Quantum Electron. 40, 445–452 (2004).
[CrossRef]

IEEE Photon. Technol. Lett. (7)

M. D. Feuer, S. Y. Huang, S. L. Woodward, O. Coskun, and M. Boroditsky, “Electronic dispersion compensation for a 10-Gb/s link using a directly modulated laser,” IEEE Photon. Technol. Lett. 15, 1788–1790 (2003).
[CrossRef]

A. Zadok, H. Shalom, M. Tur, W. D. Cornwell, and I. Andonovic, “Spectral shift and broadening of DFB lasers under direct modulation,” IEEE Photon. Technol. Lett. 10, 1709–1711 (1998).
[CrossRef]

I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Photon. Technol. Lett. 13, 735–737 (2001).
[CrossRef]

H. S. Chung, Y. G. Jang, and Y. C. Chung, “Directly modulated 10-Gb/s signal transmission over 320 km of negative dispersion fiber for regional metro network,” IEEE Photon. Technol. Lett. 15, 1306–1308 (2003).
[CrossRef]

C. S. Wong and H. K. Tsang, “Improvement of directly modulated diode-laser pulse using an optical delay interferometer,” IEEE Photon. Technol. Lett. 16, 632–634 (2004).
[CrossRef]

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Kung, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[CrossRef]

D. Mahgerefteh, A. M. Benzoni, P. S. Westbrook, K. S. Feder, P. I. Reyes, P. Steinvurzel, B. J. Eggleton, R. G. Ernst, L. A. Reith, and D. M. Gill, “DMRZ: a directly modulated 10-Gb/s RZ source for ultralong-haul WDM systems,” IEEE Photon. Technol. Lett. 14, 546–548 (2002).
[CrossRef]

J. Lightwave Technol. (6)

Other (4)

A. Wonfor, R. V. Renty, I. H. White, J. K. White, A. E. Kelly, and C. Tombling, “Uncooled 40 Gb/s transmission over 40 km single mode fiber using multi-level modulation of a highly linear laser,” in Proc. OFC, MF60, Atlanta, GA, 2003.

K. Soto, S. Kuwahara, A. Hirano, M. Yoneyama, and Y. Miyamoto, “4×40 Gbit/s dense WDM transmission over 40-km SMF using directly modulated DFB lasers,” in Proc. ECOC, We1.5.7, Stockholm, Sweden, 2004.

B. Wedding and W. Poehlmann, “43 Gbit/s transmission over 40.5 km SMF without optical amplifier using a directly modulated laser diode,” in Proc. ECOC, We2.6.6, Stockholm, Sweden, 2004.

N. Yoshikane and I. Morita, “160% spectrally-efficient 5.12-Tb/s (64×85.4 Gb/s RZ DQPSK) transmission without polarization demultiplexing,” in Proc. ECOC, Postdeadline Th4.4.3, Stockholm, Sweden, 2004.

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Figures (9)

Fig. 1.
Fig. 1.

Conceptual diagram of off-center optical filtering in directly modulated systems

Fig. 2.
Fig. 2.

(a) Transmission profile and chromatic dispersion of the optical filter used in the experiment. (b) Frequency response of the DML

Fig. 3.
Fig. 3.

Experimental setup of short distance transmission without dispersion compensation: For filtering at the transmitter, NBOF is placed after DML, while for filtering at the receiver, NBOF is placed before the receiver (after the transmission fiber). Inserted eye diagrams compare cases with and without optical filtering.

Fig. 4.
Fig. 4.

(a) Back-to-back Q-Factor improvement using optical filtering under different bias conditions. (b) Eye diagram without filtering (c) Eye diagram with filtering

Fig. 5.
Fig. 5.

Experimental results: (a) optical filtering at the transmitter (after DML), two bias conditions are shown here (-0.9 V and -1.4 V); (b) Comparison of optical filtering at the transmitter and the receiver (bias=-1.4 V); Simulation results for different optical filtering: (c) Gaussian filter (open square: 10-GHz bandwidth with 8-GHz detuning; solid dot: 15-GHz bandwidth with 14-GHz detuning; solid triangle: 20-GHz bandwidth with 18-GHz detuning) (b) 3-order super-Gaussian filter (open square: 10-GHz bandwidth with 9-GHz detuning; solid dot: 30-GHz bandwidth with 20-GHz detuning; solid triangle: 50-GHz bandwidth with 30-GHz detuning).

Fig. 6.
Fig. 6.

(a) Comparison of optical spectrum and the corresponding eye diagrams for center filtering (maximum optical power) and side-band (asymmetric) filtering: ~20-GHz detuning from the carrier center is applied here. (b) Simulated detuning sensitivity of filtering with different bandwidth after 35-km transmission for the Gaussian filter

Fig. 7.
Fig. 7.

Experimental setup of long-haul DML transmission using a recirculating loop testbed.

Fig. 8.
Fig. 8.

Comparison of optical spectra with inserted eye diagrams after ~940-km transmission (a) the optical spectrum of filtering at the carrier center (closed eye) (b) the optical spectrum of asymmetric filtering (eye remains open).

Fig. 9.
Fig. 9.

Experimental results showing system performance improvement using asymmetric narrowband filtering. (a) Q-factor of eight channels after 1100-km transmission (under ~0-ps/nm residual dispersion). (b) Overall transmission performance (Q vs. distance) of DML under different residual dispersion values.

Equations (6)

Equations on this page are rendered with MathJax. Learn more.

Δ ν ( t ) = 1 2 π d ϕ dt = α 4 π ( d dt ln P ( t ) + κ P ( t ) )
E ( t ) = P 0 ( t ) exp [ j ϕ ( t ) ] = P 0 ( t ) exp [ j 2 π t υ ( t ) dt ]
Δ RIN ( Ω ) = 10 log 10 [ 1 + ( T α Ω 0 2 2 T Ω ) 2 ]
E in ( t ) = E 0 1 + m sin ( Ω t ) exp [ i β cos ( Ω t + θ FM ) ]
β = α 2 m 1 + ( κ Ω ) 2 and θ FM = tan 1 ( Ω κ )
E ˜ out ( ω ) = E ˜ in ( ω ) t ( ω ) exp [ i β ( ω ω 0 ) 2 L 2 ]

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