Polarization-independent optical wavelength filter for channel dropping applications

Deri, Robert J; Patterson, Frank

Polarization-independent optical wavelength filter for channel dropping applications

Patent · Mon Jan 01 04:00:00 EST 1996

OSTI ID:870411

Deri, Robert J ^[1]; Patterson, Frank ^[2]

Pleasanton, CA
Livermore, CA

The polarization dependence of optical wavelength filters is eliminated by using waveguide directional couplers. Material birefringence is used to compensate for the waveguide (electromagnetic) birefringence which is the original cause of the polarization dependence. Material birefringence is introduced in a controllable fashion by replacing bulk waveguide layers by finely layered composites, such as multiple quantum wells using III-V semiconductor materials. The filter has use in wavelength-division-multiplexed fiber optic communication systems. This filter has broad application for wavelength-tunable receivers in fiber optic communication links, which may be used for telecommunications, optical computer interconnect links, or fiber optic sensor systems. Since multiple-wavelength systems are increasingly being used for all of these applications, the filter is useable whenever a rapidly tunable, wavelength-filtering receiver is required.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

DOE Contract Number:: W-7405-ENG-48

Assignee:: Regents of University of California (Oakland, CA)

Patent Number(s):: US 5515461

OSTI ID:: 870411

Country of Publication:: United States

Language:: English

References (15)

Broadly tunable InGaAsP/InP buried rib waveguide vertical coupler filter Alferness, R. C.; Buhl, L. L.; Koren, U. Applied Physics Letters, Vol. 60, Issue 8 https://doi.org/10.1063/1.106480	journal	February 1992
Codirectional grating-coupled filter for wavelength selective photodetection Sakata, H.; Takeuchi, S.; Hiroki, T. Electronics Letters, Vol. 28, Issue 8 https://doi.org/10.1049/el:19920474	journal	January 1992
Vertically coupled InGaAsP/InP buried rib waveguide filter Alferness, R. C.; Buhl, L. L.; Koren, U. Applied Physics Letters, Vol. 59, Issue 20 https://doi.org/10.1063/1.105958	journal	November 1991
Tunable optical waveguide directional coupler filter Alferness, R. C.; Schmidt, R. V. Applied Physics Letters, Vol. 33, Issue 2 https://doi.org/10.1063/1.90292	journal	July 1978
Sidelobe suppression in grating-assisted wavelength-selective couplers Sakata, Hajime Optics Letters, Vol. 17, Issue 7 https://doi.org/10.1364/OL.17.000463	journal	January 1992
Grating-assisted directional coupler filters using AlGaAs/GaAs MQW waveguides Sakata, H.; Takeuchi, S. IEEE Photonics Technology Letters, Vol. 3, Issue 10 https://doi.org/10.1109/68.93255	journal	October 1991
A novel integrated optics wavelength filter in InGaAsP-InP Broberg, B.; Lindgren, B.; Oberg, M. Journal of Lightwave Technology, Vol. 4, Issue 2 https://doi.org/10.1109/JLT.1986.1074686	journal	January 1986
Polarization‐independent wavelength filter using a grating‐assisted vertical directional coupler in InP Heismann, F.; Buhl, L. L.; Miller, B. I. Applied Physics Letters, Vol. 64, Issue 18 https://doi.org/10.1063/1.111632	journal	May 1994
A vertically coupled InGaAsP/InP directional coupler filter of ultranarrow bandwidth Wu, C.; Rolland, C.; Puetz, N. IEEE Photonics Technology Letters, Vol. 3, Issue 6 https://doi.org/10.1109/68.91020	journal	June 1991
Wavelength selective interlayer directionally grating‐coupled InP/InGaAsP waveguide photodetection Koch, T. L.; Corvini, P. J.; Tsang, W. T. Applied Physics Letters, Vol. 51, Issue 14 https://doi.org/10.1063/1.98791	journal	October 1987
Grating‐assisted InGaAsP/InP vertical codirectional coupler filter Alferness, R. C.; Koch, T. L.; Buhl, L. L. Applied Physics Letters, Vol. 55, Issue 19 https://doi.org/10.1063/1.102148	journal	November 1989
Photonic integrated tunable receivers with optical preamplifiers for direct detection Chuang, Z. M.; Mondry, M. J.; Young, D. B. Applied Physics Letters, Vol. 63, Issue 7 https://doi.org/10.1063/1.109888	journal	August 1993
InGaAs/InGaAsP MQW optical amplifier integrated with grating-assisted vertical-coupler noise filter Kim, I.; Alferness, R. C.; Buhl, L. L. IEEE Photonics Technology Letters, Vol. 5, Issue 11 https://doi.org/10.1109/68.250056	journal	November 1993
Wavelength tuning in a grating‐assisted vertical coupler filter using quantum well electrorefraction Sakata, Hajime; Takeuchi, Shinsuke Applied Physics Letters, Vol. 59, Issue 24 https://doi.org/10.1063/1.105795	journal	December 1991
Broadly tunable InGaAsP/InP laser based on a vertical coupler filter with 57‐nm tuning range Alferness, R. C.; Koren, U.; Buhl, L. L. Applied Physics Letters, Vol. 60, Issue 26 https://doi.org/10.1063/1.106741	journal	June 1992

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Polarization-independent optical wavelength filter for channel dropping applications

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