Polarization independent all-fiber optical circulator

Details Polarization independent all-fiber optical circulator Polarization independent all-fiber optical circulator

1992-12-04

1995-03-21

Bovernick, Rodney B.

Optical waveguides

Polarization without modulation

385 6, 385 42, 359484, 359489, 359281, G02B 530, G02F 129

Patent

active

054004187

ABSTRACT:
There is provided an optical circulator (16) for bidirectional communication on a fiber optic communication transmission system. Polarization preserving single-mode fiber lengths (26), (28) connect all-fiber polarization splitter (18) with the Faraday single-mode fiber lengths (22), (24). Polarization preserving single-mode fiber lengths (30), (32) connect the opposite ends of Faraday single-mode fiber lengths (22), (24) with all-fiber polarization splitter (20). A communication transmitter is connected to splitter (18) at port 1, and a communication receiver is connected to splitter (18) at port 3. A fiber optic communication link (50) is connected to splitter (20) at port 2. The components of optical circulator (16) cooperate such that light transmitted into port 1 exits from port 2, and light transmitted into port 2 exits from port 3.

REFERENCES:
patent: 3536375 (1970-10-01), Mansell
patent: 4464022 (1984-08-01), Emkey
patent: 4557553 (1985-12-01), McLandrich
patent: 4609257 (1986-09-01), Shirasaki
patent: 4650289 (1987-03-01), Kuwahara
patent: 4671621 (1987-06-01), Dillon, Jr. et al.
patent: 4685773 (1987-08-01), Carlsen et al.
patent: 4753497 (1988-06-01), Fujii et al.
patent: 4783851 (1988-11-01), Inou et al.
patent: 4859014 (1989-08-01), Schmitt et al.
patent: 4969717 (1990-11-01), Mallinsoh
patent: 4973119 (1990-11-01), Taki
patent: 4973120 (1990-11-01), Jopson et al.
patent: 4973124 (1990-11-01), Kaede
patent: 4974944 (1990-12-01), Chang
patent: 4978189 (1990-12-01), Blonder et al.
patent: 4987567 (1991-01-01), Buhrer
patent: 4988170 (1991-01-01), Burher
patent: 5031983 (1991-07-01), Dillon, Jr. et al.
patent: 5033830 (1991-07-01), Jameson
patent: 5303314 (1994-04-01), Duling, III et al.
Stolen et al, "Faraday rotation in highly birefringent optical fibers", Appliedoptics, vol. 19, No. 6, 15 Mar. 1980, pp. 842-845.
Fujii, Yohji, "High-Isolation Polarization-Independent Optical Circulator Coupled with Single-Mode with Single-Mode Fibers", Journal of Lightwave Technology, vol. 9, No. 4, Apr. 1991, pp. 456-460.
Fujii, Yohji, "High14 Isolation Polarization-Independent Optical Circulator", Journal of Lightwave Technology, vol. 9, No. 10, Oct., 1991, pp. 1238-1243.
Iwamura, Hidetoshi, et al., "Simple Polarisation-Independent Optical Circulator for Optical Transmission Systems", Electronics Letters, Dec. 6, 1979, vol. 15, No. 25, pp. 830-831.
Mizumoto, T., et al., "Verification of Waveguide-Type Optical Circulator Operation", Electronic Letters, Feb. 1, 1990, vol. 26, No. 3.
Okamura, Yasuyuki, et al., "Integrated Optical Isolator and Circulator Using Nonreciprocal Phase Shifters: A Proposal", Applied Optics, vol. 23, No. 11, Jun. 1, 1984, pp. 1886-1889.
Shirasaki, Masataka, et al., "A Compact Polarization-Independent Optical Circulator", Applied Optics, Aug. 1, 1981, vol. 20, No. 15, pp. 2683-2687.
Turner, E. H., et al., "Fiber Faraday Circulator or Isolator", Optics Letters, vol. 6, No. 7, Jul., 1981, pp. 322-323.
Yokohama, I., et al., "Fibre-Optic Polarising Beam Splitter Employing Birefringent-Fibre Coupler", Electronics Letter, May 9, 1985, vol. 21, No. 10, pp. 415-416.
Yokohama, I., et al, "Polarisation-Independent Optical Circulator Consisting of Two Fibre-Optic Polarising Beam Splitters and Two Yig Spherical Lenses", Electronics Letters, Mar. 26, 1986, vol. 22, No. 7, pp. 370-372.

Affiliated with

Also associated with

Rating

Polarization independent all-fiber optical circulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polarization independent all-fiber optical circulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization independent all-fiber optical circulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1155836