Abstract

In this paper, a coupled Fabry-Perot cavities filter, using the liquid crystal as the tunable medium, is investigate to achieve tunable flat top filtering performance across the C and L bands. A tandem coupled Fabry-Perot is presented for a tunable passband filter with flat top and minimum ripple in the passband. The overall tuning range of the filter is 172 nm. Several designs are shown with comparable performance to the commercial available 100 GHz fixed single channel filters.

© 2008 Optical Society of America

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References

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  1. K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
    [Crossref]
  2. M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
    [Crossref]
  3. W. Vogel and M. Berroth, “Tunable liquid crystal Fabry-Perot filters,” Proc. SPIE 4944, (2002).
  4. K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
    [Crossref]
  5. K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
    [Crossref]
  6. A. Sneh and K. M. Johnson, “High-speed continuously tunable liquid crystal filter for WDMnetworks,” J. Light-wave Technol. 14, 1067–1080 (1996).
    [Crossref]
  7. H. van de Stadt and M. Muller, “Multimirror Fabry-Perot interferometers,” J. Opt. Soc. Am. A,  2, 1363–1370 (1985).
    [Crossref]
  8. A. A. M. Saleh and J. Stone, “Two Stage Fabry-Perot Filters as Demultiplexers in Optical FDMA LAN’s,” J. Lightwave Technol. 7, 323–330 (1989).
    [Crossref]
  9. J. S. Patel and Sin-Doo Lee, “Electrically tunable and polarization insensitive Fabry-Perot etalon with a liquid crystal film,” Appl. Phys Lett. 58, 2491–2493 (1991).
    [Crossref]
  10. G. Hernandez, Fabry-Perot Interferometers (Cambridge University Press, Cambridge, 1986).
  11. M. Iodiceet.al., “Simple and low-cost technique for wavelength division multiplexing channel monitoring,” Opt. Eng. 39, 1704–1711 (2000).
    [Crossref]
  12. W. Houston, “A compound interferometer for fine structure work,” Phys. Rev. 29, 478–484 (1927).
    [Crossref]
  13. A. Melloni and M. Martinelli, “Synthesis of direct-coupled-resonators band pass filters for WDM systems,” J. Lightwave Technol. 20, 296–303 (2002).
    [Crossref]
  14. H. A. Macleod, Thin-film Optical Filters (Institute of Physics Publishing, Bristol, 2001).
  15. see http://www.avanex.com/ProductsSolutions/products.aspx?catid=20

2002 (2)

2000 (1)

M. Iodiceet.al., “Simple and low-cost technique for wavelength division multiplexing channel monitoring,” Opt. Eng. 39, 1704–1711 (2000).
[Crossref]

1996 (1)

A. Sneh and K. M. Johnson, “High-speed continuously tunable liquid crystal filter for WDMnetworks,” J. Light-wave Technol. 14, 1067–1080 (1996).
[Crossref]

1993 (1)

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
[Crossref]

1992 (2)

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
[Crossref]

1991 (1)

J. S. Patel and Sin-Doo Lee, “Electrically tunable and polarization insensitive Fabry-Perot etalon with a liquid crystal film,” Appl. Phys Lett. 58, 2491–2493 (1991).
[Crossref]

1990 (1)

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

1989 (1)

A. A. M. Saleh and J. Stone, “Two Stage Fabry-Perot Filters as Demultiplexers in Optical FDMA LAN’s,” J. Lightwave Technol. 7, 323–330 (1989).
[Crossref]

1985 (1)

1927 (1)

W. Houston, “A compound interferometer for fine structure work,” Phys. Rev. 29, 478–484 (1927).
[Crossref]

Berroth, M.

W. Vogel and M. Berroth, “Tunable liquid crystal Fabry-Perot filters,” Proc. SPIE 4944, (2002).

Hernandez, G.

G. Hernandez, Fabry-Perot Interferometers (Cambridge University Press, Cambridge, 1986).

Hirabayashi, K.

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
[Crossref]

Horrobin, J.

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

Houston, W.

W. Houston, “A compound interferometer for fine structure work,” Phys. Rev. 29, 478–484 (1927).
[Crossref]

Iodice, M.

M. Iodiceet.al., “Simple and low-cost technique for wavelength division multiplexing channel monitoring,” Opt. Eng. 39, 1704–1711 (2000).
[Crossref]

Johnson, K. M.

A. Sneh and K. M. Johnson, “High-speed continuously tunable liquid crystal filter for WDMnetworks,” J. Light-wave Technol. 14, 1067–1080 (1996).
[Crossref]

Kurokawa, T.

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
[Crossref]

Lee, Sin-Doo

J. S. Patel and Sin-Doo Lee, “Electrically tunable and polarization insensitive Fabry-Perot etalon with a liquid crystal film,” Appl. Phys Lett. 58, 2491–2493 (1991).
[Crossref]

Lin, C.

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

Macleod, H. A.

H. A. Macleod, Thin-film Optical Filters (Institute of Physics Publishing, Bristol, 2001).

Maeda, M. W.

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

Martinelli, M.

Melloni, A.

Muller, M.

Patel, J. S.

J. S. Patel and Sin-Doo Lee, “Electrically tunable and polarization insensitive Fabry-Perot etalon with a liquid crystal film,” Appl. Phys Lett. 58, 2491–2493 (1991).
[Crossref]

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

Saleh, A. A. M.

A. A. M. Saleh and J. Stone, “Two Stage Fabry-Perot Filters as Demultiplexers in Optical FDMA LAN’s,” J. Lightwave Technol. 7, 323–330 (1989).
[Crossref]

Sneh, A.

A. Sneh and K. M. Johnson, “High-speed continuously tunable liquid crystal filter for WDMnetworks,” J. Light-wave Technol. 14, 1067–1080 (1996).
[Crossref]

Spicer, R.

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

Stone, J.

A. A. M. Saleh and J. Stone, “Two Stage Fabry-Perot Filters as Demultiplexers in Optical FDMA LAN’s,” J. Lightwave Technol. 7, 323–330 (1989).
[Crossref]

Tsuda, H.

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
[Crossref]

van de Stadt, H.

Vogel, W.

W. Vogel and M. Berroth, “Tunable liquid crystal Fabry-Perot filters,” Proc. SPIE 4944, (2002).

Appl. Phys Lett. (1)

J. S. Patel and Sin-Doo Lee, “Electrically tunable and polarization insensitive Fabry-Perot etalon with a liquid crystal film,” Appl. Phys Lett. 58, 2491–2493 (1991).
[Crossref]

IEEE Photon. Technol. Lett. (3)

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “New structure of tunable wavelength-selective filters with a liquid crystal for FDM systems,” IEEE Photon. Technol. Lett. 3, 741–743 (1992).
[Crossref]

M. W. Maeda, J. S. Patel, C. Lin, J. Horrobin, and R. Spicer, “Electronically tunable liquid-crystal-etalon filter for high-density WDM systems,” IEEE Photon. Technol. Lett. 2, 820–822 (1990).
[Crossref]

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength-selective liquid crystal filters for 600-channel system,” IEEE Photon. Technol. Lett. 4, 597–599 (1992).
[Crossref]

J. Light-wave Technol. (1)

A. Sneh and K. M. Johnson, “High-speed continuously tunable liquid crystal filter for WDMnetworks,” J. Light-wave Technol. 14, 1067–1080 (1996).
[Crossref]

J. Lightwave Technol. (3)

K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable liquid crystal Fabry-Perot interferometer filter for wavelength-division multiplexing communication systems,” J. Lightwave Technol. 11, 2033–2043 (1993).
[Crossref]

A. A. M. Saleh and J. Stone, “Two Stage Fabry-Perot Filters as Demultiplexers in Optical FDMA LAN’s,” J. Lightwave Technol. 7, 323–330 (1989).
[Crossref]

A. Melloni and M. Martinelli, “Synthesis of direct-coupled-resonators band pass filters for WDM systems,” J. Lightwave Technol. 20, 296–303 (2002).
[Crossref]

J. Opt. Soc. Am. A (1)

Opt. Eng. (1)

M. Iodiceet.al., “Simple and low-cost technique for wavelength division multiplexing channel monitoring,” Opt. Eng. 39, 1704–1711 (2000).
[Crossref]

Phys. Rev. (1)

W. Houston, “A compound interferometer for fine structure work,” Phys. Rev. 29, 478–484 (1927).
[Crossref]

Proc. SPIE (1)

W. Vogel and M. Berroth, “Tunable liquid crystal Fabry-Perot filters,” Proc. SPIE 4944, (2002).

Other (3)

G. Hernandez, Fabry-Perot Interferometers (Cambridge University Press, Cambridge, 1986).

H. A. Macleod, Thin-film Optical Filters (Institute of Physics Publishing, Bristol, 2001).

see http://www.avanex.com/ProductsSolutions/products.aspx?catid=20

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Figures (4)

Fig. 1.
Fig. 1.

(a) Three-mirror FP filter and the middle mirror equivalent realization. (b) Detailed layers structure of a two coupled cavity Fabry Perot with the driving voltage connections.

Fig. 2.
Fig. 2.

(a) Transmission profiles for one FPI, two, three, and four coupled FPI cavities (b) Transmission profiles for different number of tandem FPIs.

Fig. 3.
Fig. 3.

Transmission of (2×2) system, (3×2) system, 4-coupled, and 6-coupled cavities. (b) Transmission of (2×2) system, (3×2) system, 2-coupled, and 3-coupled cavities.

Fig. 4.
Fig. 4.

(a) Transmission profile for 2-coupled cavities system (see Fig. 1(b)) with mis-matched LC cavities with 1, 5, and 10% difference in cavity length. (b) For 4-coupled cavities system.

Tables (1)

Tables Icon

Table 1. The specifications of the designed filter in the C and L bands and the available commercial single channel 100 GHz filters.

Equations (2)

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

T = ( 1 R m ) ( 1 R 1 ) ( 1 R 2 ) 1 R m R 1 exp ( i 2 φ ) R m R 2 exp ( i 2 φ ) + R 1 R 2 exp ( i 4 φ ) 2
R mc = [ ( R 1 + R 2 1 + R 1 R 2 ] 2

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