Abstract

We propose and demonstrate a new modified Lyot filter to independently ensure the channel amplitude equalization and the bandwidth tuning functions. The device consists of hybrid liquid crystal interferometers. We show numerically and experimentally that for a modified four-stage Lyot filter, the two first interferometers ensure equalization function with a maximum extinction ratio, while the last interferometer allows full-width at half-maximum tuning function by using, in particular, the optical canceling approach. Such a device is highly desirable in optical telecommunications, especially where in the core network the optical filters must perform several other functions in addition to their basic amplitude filtering action.

© 2012 IEEE

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2011

D. F. Bendimerad, B.-E. Benkelfat, Y. Gottesman, O. Seddiki, B. Vinouze, R. Hamdi, "Contrast and finesse enhancement in a birefringent filter," IEEE Photon. Technol. Lett. 23, 1721-1723 (2011).

2009

O. Aharon, I. Abdulhalim, "Tunable optical filter having a large dynamic range," Opt. Lett. 34, 2114-2116 (2009).

O. Aharon, I. Abdulhalim, "Liquid crystal Lyot tunable filter with extended free spectral range," Opt. Exp. 17, 11426-11433 (2009).

I. Abdulhalim, "Optimized guided mode resonant structure as thermo-optic sensor and liquid crystal tunable filter," Chin. Opt. Lett. 7, 667-670 (2009).

R. Hamdi, B.-E. Benkelfat, B. Vinouze, "Multi-channel amplitude equalization based on liquid crystal polarization interference filters," J. Opt. A: Pure Appl. Opt. (2009).

2008

I. Will, G. Klemz, "Generation of flat-top picosecond pulses by coherent pulse stacking in a multicrystal birefringent filter," Opt. Exp. 16, 14922-14937 (2008).

2007

R. Hamdi, B.-E. Benkelfat, Q. Zou, Y. Gottesman, "Bandwidth tuning of hybrid liquid-crystal Solc filters based on an optical cancelling technique," Opt. Commun. 269, 64-68 (2007).

2006

2004

B.-E. Benkelfat, Q. Zou, B. Vinouze, "Low voltage continuous tunable hybrid filter for tailored optical-bandwidth operation," IEEE Photon. Technol. Lett. 16, 1098-100 (2004).

2003

T. Loukina, R. Chevallier, J. L. de Bourgrenet de la Tocnaye, M. Barge, "Dynamic spectral equalizer using free-space dispersive optics combined with a polymer-dispersed liquid crystal spatial light attenuator," J. Lightw. Technol. 21, 2067-2073 (2003).

2002

S. Saeed, P. J. Bos, "Multispectrum, spatially addressable polarization interference filter," J. Opt. Soc. Amer. A 19, 2301-2312 (2002).

R. H. Chu, G. Town, "Birefringent filter synthesis by use a digital filter design algorithm," Appl. Opt. 41, 3412-3418 (2002).

1997

1989

1973

A. M. Title, "Improvement of birefringent filters," Solar Phys. 33, 521-523 (1973).

1965

I. Solc, "Birefringent chain filters," J. Opt. Soc. Amer. 55, 621-625 (1965).

1964

S. E. Harris, E. O. Ammann, I. C. Chang, "Optical network synthesis using birefringent crystals. I. Synthesis of lossless network of equal-length crystals," J. Opt. Soc. Amer. 54, 1267-1279 (1964).

1949

J. W. Evans, "The birefringent filter," J. Opt. Soc. Amer. 39, 229-242 (1949).

1944

B. Lyot, "The birefringent filter and its application in solar physics," Ann. Astrophys. 7, 31-36 (1944).

Ann. Astrophys.

B. Lyot, "The birefringent filter and its application in solar physics," Ann. Astrophys. 7, 31-36 (1944).

Appl. Opt.

Chin. Opt. Lett.

IEEE Photon. Technol. Lett.

B.-E. Benkelfat, Q. Zou, B. Vinouze, "Low voltage continuous tunable hybrid filter for tailored optical-bandwidth operation," IEEE Photon. Technol. Lett. 16, 1098-100 (2004).

D. F. Bendimerad, B.-E. Benkelfat, Y. Gottesman, O. Seddiki, B. Vinouze, R. Hamdi, "Contrast and finesse enhancement in a birefringent filter," IEEE Photon. Technol. Lett. 23, 1721-1723 (2011).

J. Lightw. Technol.

T. Loukina, R. Chevallier, J. L. de Bourgrenet de la Tocnaye, M. Barge, "Dynamic spectral equalizer using free-space dispersive optics combined with a polymer-dispersed liquid crystal spatial light attenuator," J. Lightw. Technol. 21, 2067-2073 (2003).

J. Opt. A: Pure Appl. Opt.

R. Hamdi, B.-E. Benkelfat, B. Vinouze, "Multi-channel amplitude equalization based on liquid crystal polarization interference filters," J. Opt. A: Pure Appl. Opt. (2009).

J. Opt. Soc. Amer.

S. E. Harris, E. O. Ammann, I. C. Chang, "Optical network synthesis using birefringent crystals. I. Synthesis of lossless network of equal-length crystals," J. Opt. Soc. Amer. 54, 1267-1279 (1964).

I. Solc, "Birefringent chain filters," J. Opt. Soc. Amer. 55, 621-625 (1965).

J. W. Evans, "The birefringent filter," J. Opt. Soc. Amer. 39, 229-242 (1949).

J. Opt. Soc. Amer. A

S. Saeed, P. J. Bos, "Multispectrum, spatially addressable polarization interference filter," J. Opt. Soc. Amer. A 19, 2301-2312 (2002).

Opt. Commun.

R. Hamdi, B.-E. Benkelfat, Q. Zou, Y. Gottesman, "Bandwidth tuning of hybrid liquid-crystal Solc filters based on an optical cancelling technique," Opt. Commun. 269, 64-68 (2007).

Opt. Exp.

I. Will, G. Klemz, "Generation of flat-top picosecond pulses by coherent pulse stacking in a multicrystal birefringent filter," Opt. Exp. 16, 14922-14937 (2008).

O. Aharon, I. Abdulhalim, "Liquid crystal Lyot tunable filter with extended free spectral range," Opt. Exp. 17, 11426-11433 (2009).

Opt. Lett.

Solar Phys.

A. M. Title, "Improvement of birefringent filters," Solar Phys. 33, 521-523 (1973).

Other

B.-E. Benkelfat, Y. Gottesman, R. Hamdi, M. Cheikhbled, "Continuously tunable single-frequency fiber laser based on novel hybrid Solc filter," Proc. SPIE (2005) pp. 774-780.

R. Hamdi, B.-E. Benkelfat, Q. Zou, B. Vinouze, M. Benslama, "A novel 1 × 2 wavelength routing switch based on tunable hybrid liquid-crystal Solc filter," Proc. Int. Conf. Photon. Switching (2006) pp. 1-3.

N. Gat, "Imaging spectroscopy using tunable filters: A review," Proc. SPIE (2000) pp. 50-64.

P. T. Neves, Jr.F. Kuller, H. J. Kalinowski, J. L. Fabris, A. A. P. Pohl, "Two-channel CWDM OADM based on large bandwidth fibre Bragg gratings," Proc. 8th Int. Conf. Transparent Opt. Netw. (2006) pp. 198-201.

A. Yariv, P. Yeh, Optical Waves in Crystals (Wiley, 1984).

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