Abstract

By solving the inverse amplifier design problem, gain-flattened O (~ 17.5 THz), E (~15.1 THz), and S + C+ L ( ~20.9 THz) ultrabroadband fiber Raman amplifiers (FRA) are designed using a new TeO<sub>2</sub>-SrO-Nb<sub>2</sub> O<sub>5</sub>-P<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub> (TBSNWP) tellurite fiber. When increasing the numbers of pump wavelengths from two to eight, the gain profiles become flatter, and the effective bandwidth becomes larger. Relative gain flatness of ~1% could be achieved over bandwidths of up to 15.1 THz (corresponds to E-band) without any gain equalization devices. When narrowing the gain bandwidth from the S+ C+ L-band (20.9 THz) to the E-band (15.1 THz), the relative gain flatness is reduced from 4.51% to 4.12%. The effects of the shape of the Raman gain spectra on the relative gain flatness and the effective bandwidth are also investigated using the TBSNWP glass with one broad Raman shift peak (full width at half maximum ~11 THz) and TeO<sub>2</sub>-Bi<sub>2</sub>O<sub>3</sub>-ZnO-Na<sub>2</sub>O (TBZN) glass with twin peaks. The simulation results show that the relative gain flatness and the effective bandwidth of TBSNWP FRA are better and larger than those of TBZN FRA, respectively. Our results suggest that the TBSNWP glasses are promising candidates for broadband FRA in photonic systems.

© 2007 IEEE

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  2. M. N. Islam, Raman Amplifiers for Telecommunications 1: Physical Principles (Springer-Verlag, 2004) pp. 1-34.
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  6. R. Stegeman, L. Jankovic, H. Kim, C. Rivero, G. Stegeman, K. Richardson, P. Delfyett, Y. Guo, A. Schulte, T. Cardinal, "Tellurite glasses with peak absolute Raman gain coefficients up to 30 times that of fused silica ," Opt. Lett. 28, 1126-1128 (2003).
  7. Y. Ohishi, R. Jose, "Raman scattering characteristics of WO2 and P2O5 doped TBSN glasses: A new gain medium for broadband fiber Raman amplifiers," Proc. SPIE 6389, 638 906-1-638 906-13 (2006).
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  14. R. Jose, Y. Ohishi, "Enhanced Raman gain coefficients and bandwidths in P2O5 and WO2 added tellurite glasses for Raman gain medium," Appl. Phys. Lett. 89, 121 122-1-121 122-3 (2006).

2006 (3)

H. Masuda, A. Mori, K. Shikano, M. Shimizu, "Design and spectral characteristics of gain-flattened tellurite-based fiber Raman amplifiers ," J. Lightw. Technol. 24, 504-515 (2006).

Y. Ohishi, R. Jose, "Raman scattering characteristics of WO2 and P2O5 doped TBSN glasses: A new gain medium for broadband fiber Raman amplifiers," Proc. SPIE 6389, 638 906-1-638 906-13 (2006).

R. Jose, Y. Ohishi, "Enhanced Raman gain coefficients and bandwidths in P2O5 and WO2 added tellurite glasses for Raman gain medium," Appl. Phys. Lett. 89, 121 122-1-121 122-3 (2006).

2005 (1)

F. Vanholsbeeck, S. Coen, P. Emplit, M. Haelterman, T. Sylvestre, "Raman-induced power tilt in arbitrary large wavelength-division-multiplexed systems ," IEEE Photon. Technol. Lett. 17, 88-90 (2005).

2003 (3)

A. Mori, H. Masuda, K. Shikano, M. Shimizu, "Ultra-wide-band tellurite-based fiber Raman amplifier," J. Lightw. Technol. 21, 1300-1306 (2003).

R. Stegeman, L. Jankovic, H. Kim, C. Rivero, G. Stegeman, K. Richardson, P. Delfyett, Y. Guo, A. Schulte, T. Cardinal, "Tellurite glasses with peak absolute Raman gain coefficients up to 30 times that of fused silica ," Opt. Lett. 28, 1126-1128 (2003).

Y. Ohishi, "Ultra-broadband optical amplifiers for WDM," Proc. SPIE 5246, 163-172 (2003).

2002 (1)

V. E. Perlin, H. G. Winful, "Optimal design of flat-gain wide-band fiber Raman amplifiers," J. Lightw. Technol. 20, 250-254 (2002).

2001 (1)

S. Namiki, Y. Emori, "Ultrabroad-band Raman amplifiers pumped and gain-equalized by wavelength-division-multiplexed high power laser diodes," IEEE J. Sel. Topics Quantum Electron. 7, 3-16 (2001).

1999 (2)

H. Kidorf, K. Rottwitt, M. Nissov, M. Ma, E. Rabarijaona, "Pump interactions in a 100-nm bandwidth Raman amplifiers," IEEE Photon. Technol. Lett. 11, 530-532 (1999).

S. Bigo, S. Gauchard, A. Bertaina, J. P. Hamaide, "Experimental investigation of stimulated Raman scattering limitation on WDM transmission over various types of fiber infrastructures," IEEE Photon. Technol. Lett. 11, 671-673 (1999).

1996 (1)

D. N. Christodoulides, R. B. Jander, "Evaluation of stimulated Raman crosstalk in wavelength division multiplexed systems ," IEEE Photon. Technol. Lett. 8, 1722-1724 (1996).

1995 (1)

F. Duclos, P. Urquhart, "Thulium-doped ZBLAN blue upconversion fiber laser: Theory," J. Opt. Soc. Amer. B, Opt. Phys. 12, 709-717 (1995).

Appl. Phys. Lett. (1)

R. Jose, Y. Ohishi, "Enhanced Raman gain coefficients and bandwidths in P2O5 and WO2 added tellurite glasses for Raman gain medium," Appl. Phys. Lett. 89, 121 122-1-121 122-3 (2006).

IEEE J. Sel. Topics Quantum Electron. (1)

S. Namiki, Y. Emori, "Ultrabroad-band Raman amplifiers pumped and gain-equalized by wavelength-division-multiplexed high power laser diodes," IEEE J. Sel. Topics Quantum Electron. 7, 3-16 (2001).

IEEE Photon. Technol. Lett. (4)

H. Kidorf, K. Rottwitt, M. Nissov, M. Ma, E. Rabarijaona, "Pump interactions in a 100-nm bandwidth Raman amplifiers," IEEE Photon. Technol. Lett. 11, 530-532 (1999).

S. Bigo, S. Gauchard, A. Bertaina, J. P. Hamaide, "Experimental investigation of stimulated Raman scattering limitation on WDM transmission over various types of fiber infrastructures," IEEE Photon. Technol. Lett. 11, 671-673 (1999).

D. N. Christodoulides, R. B. Jander, "Evaluation of stimulated Raman crosstalk in wavelength division multiplexed systems ," IEEE Photon. Technol. Lett. 8, 1722-1724 (1996).

F. Vanholsbeeck, S. Coen, P. Emplit, M. Haelterman, T. Sylvestre, "Raman-induced power tilt in arbitrary large wavelength-division-multiplexed systems ," IEEE Photon. Technol. Lett. 17, 88-90 (2005).

J. Lightw. Technol. (3)

V. E. Perlin, H. G. Winful, "Optimal design of flat-gain wide-band fiber Raman amplifiers," J. Lightw. Technol. 20, 250-254 (2002).

A. Mori, H. Masuda, K. Shikano, M. Shimizu, "Ultra-wide-band tellurite-based fiber Raman amplifier," J. Lightw. Technol. 21, 1300-1306 (2003).

H. Masuda, A. Mori, K. Shikano, M. Shimizu, "Design and spectral characteristics of gain-flattened tellurite-based fiber Raman amplifiers ," J. Lightw. Technol. 24, 504-515 (2006).

J. Opt. Soc. Amer. B, Opt. Phys. (1)

F. Duclos, P. Urquhart, "Thulium-doped ZBLAN blue upconversion fiber laser: Theory," J. Opt. Soc. Amer. B, Opt. Phys. 12, 709-717 (1995).

Opt. Lett. (1)

Proc. SPIE (2)

Y. Ohishi, R. Jose, "Raman scattering characteristics of WO2 and P2O5 doped TBSN glasses: A new gain medium for broadband fiber Raman amplifiers," Proc. SPIE 6389, 638 906-1-638 906-13 (2006).

Y. Ohishi, "Ultra-broadband optical amplifiers for WDM," Proc. SPIE 5246, 163-172 (2003).

Other (1)

M. N. Islam, Raman Amplifiers for Telecommunications 1: Physical Principles (Springer-Verlag, 2004) pp. 1-34.

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