Variable lightwave functional circuit and variable lightwave...

Optical waveguides – Polarization without modulation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S027000, C359S199200, C359S341500, C359S341100

Reexamination Certificate

active

11439218

ABSTRACT:
The system of a variable lightwave functional apparatus comprising: an acousto-optical modulator for outputting wavelength multiplexed light containing a plurality of pulses having a first wavelength interval; a coupler arranged at an output of said acousto-optical modulator; a polarization branching/coupling device having a first port to a third port, for branching the output form said coupler, which is entered from said first port into the polarization branching/coupling device, to both said second port and said third port; an optical amplifier connected to said second port of said polarization branching/coupling device; and said variable lightwave functional circuit and arranged between said second port of said polarization branching/coupling device and said optical amplifier; wherein: multi-wavelength oscillation light is outputted from said coupler by laser light from said acousto-optical modulator.

REFERENCES:
patent: 4529262 (1985-07-01), Ashkin et al.
patent: 4666255 (1987-05-01), Taylor et al.
patent: 4801189 (1989-01-01), Shaw et al.
patent: 4923290 (1990-05-01), Brinkmeyer et al.
patent: 5018859 (1991-05-01), Chang et al.
patent: 6417948 (2002-07-01), Chowdhury et al.
patent: 6556732 (2003-04-01), Chowdhury et al.
patent: 6630658 (2003-10-01), Bohnert et al.
patent: 2005/0213103 (2005-09-01), Everett et al.
patent: 63-249827 (1988-10-01), None
patent: 05-323396 (1993-12-01), None
patent: F-001 (1997-02-01), None
Okamoto et al., All-Panda-Fiber Multi/Demultiplexer Utilizing Polarization Beat Phenomenon in Birefringent Fibers, Electronics Leters, vol. 22, No. 4, pp. 181-182, Submitted in Parent U.S. Appl. No. 10/469,243, Feb. 1986.
Noda et al., Polarization-maintianing Fibers and Their Application, Journal of Lightwave Technology, vol. LT-4, No. 8, pp. 1071-1089, Submitted in Parent 10/469,243, Aug. 1986.
Tsubokawa et al., Mode Coupling Due to External Forces Distributed Along a Polarization-Maintaining Fiber: an Evaluation, Applied Optics, vol. 27, No. 1, pp. 166-173, Submitted in Parent 10/469,243, Jan. 1988.
Shimizu et al., Highly Practical Fiber Squeezer Polarization Controller, Journal of Lightwave Technology, vol. 9, No. 10, pp. 1217-1224, Submitted in Parent 10/469,243, Oct. 1991.
Ozeki, T., Optical Equalizer, Optics Letters, vol. 17, No. 5, pp. 375-377, Submitted in Parent 10/469,243, Mar. 1992.
Sharma et al., Optical Circuit for Equalizing Group Delay Dispersion of Optical Fibers, Journal of Lightwave Technology, vol. 12, No. 108, pp. 1759-1765, Submitted in Parent 10/469,243, Oct. 1994.
Jinguji et al.,Synthesis of Coherent Two-Port Lattice-Form Optical Delay-Line Circuit; Journal of Lightwave Technology, vol. 13, No. 1, pp. 73-82, Submitted in Parent 10/469,243, Jan. 1995.
Fang et al., Polarization-Independent All-Fiber Wavelength-division Multiplexer Based on a Sagnac Interferometer, Optice Letters, vol. 20, No. 20, pp. 2146-2148, Submitted in Parent 10/469,243, Oct. 1995.
Fnag et al., A Compound High-Order Polarization—independent Birefringence Filter Using Sagnac Interferometer, IEEE Photonic Technology Letters, vol. 9, No. 4, pp. 458-460, Submitted in Parent 10/469,243, Apr. 1997.
Saida et al., Distributed Fiber-Optic Stress Sensor by Synthesis of the Optical Coherence Function; IEEE Photonic Technology Letters, vol. 9, No. 4, pp. 484-486, Submitted in Parent 10/469,243, Apr. 1997.
Tanaka et al., Fibre Optic Spectral Polarimetry for Sensing Multiple Stress-Loaded Locations Along a Length of Fibre, IEE Proc.-Optoelectron., vol. 144, No. 3, pp. 176-182, Submitted in Parent 10/469,243, Jun. 1997.
Yamashita et al., A Distributed Fiber Laser Stress Sensor, Technical Report of IEICE, OFT2000-45, pp. 7-12, Submitted in Parent 10/469,243, Sep. 2000.
Yamashita et al., Multiwavelength Fiber Laser with Tunable Wavelength Spacing, PLANC, pp. 355-357, Submitted in Parent 10/469,243, Mar. 2001.
IPER PCT/JP01/02031, Submitted in Parent 10/469,243, Oct. 14, 2003.
Teruyuki Baba “Multiwavelength Fiber Lasers with Tunable Wavelength Spacing” The Institute of Electronics, Information and Communication Engineers, Sogo Taikai Koen Ronbunshu Electronics, XP-002955856, 3-7-200, P355 Japan, Submitted Herewith, Mar. 7, 2001.
Xiaojun Fang “Polarization-independent all fiber wavelength-division multiplexer based on a Sagnac Interferometer” Optics Letters, XP00532387, Oct. 15, 1995, 2146-2148, New York, USA, Submitted Herewith.
European Patent Office Search Report for PCT/JP02/020301, Feb. 7, 2006, Submitted Herewith.
Communication Pursuant to Article 96(2) EPC, Apr. 16, 2006, Submitted Herewith.
Communication Pursuant to Article 96(2) EPC, Oct. 23, 2005, Submitted Herewith.
Paul Humphrey “Fiber-Birefringence Tuning Technique for an Erbium-Doped Fiber Ring Laser” IEEE Photonics Technology Letters, 5 (1993) Jan. 1993, New York, USA, Submitted Herewith.
IPER PCT/JP01/02031, Oct. 14, 2003.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Variable lightwave functional circuit and variable lightwave... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable lightwave functional circuit and variable lightwave..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable lightwave functional circuit and variable lightwave... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3877191

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.