Method and apparatus for acousto-optically shifting the frequenc

Details Method and apparatus for acousto-optically shifting the frequenc Method and apparatus for acousto-optically shifting the frequenc

1986-06-12

1987-05-19

Sikes, William L.

350 9610, 350 9615, 350 9629, 350 9630, 350358, 350320, G02B 530, G02B 626, G02B 602, G02F 101

Patent

active

046662553

ABSTRACT:
An acousto-optic frequency shifter in which two cylindrical acoustic resonators driven 90.degree. out of phase from one another are placed around a birefringent, single-mode optical fiber approximately three-quarters of a polarization beat length apart. The resonators interact with optical radiation propagating in one of two polarization modes of the fiber, the first to cross-couple two sidebands into the other polarization mode, and the second to suppress one of the sidebands in the cross-coupled mode and enhance the other, thereby creating a single sideband signal completely within the fiber.

REFERENCES:
patent: 4068191 (1978-01-01), Zemon et al.
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4319186 (1982-03-01), Kingsley
patent: 4603941 (1986-08-01), Fujii et al.
patent: 4606605 (1986-08-01), Ashkin et al.
Heismann et al., "Integrated-Optical Single-Sideband Modulator and Phase Shifter" IEEE J. of Quant. Elect., vol. QE-18, No. 4, 4/82, pp. 767-770.
Nosu et al., "Acousto-Optic Frequency Shifter . . . ", Electronics Lett., vol. 19, No. 20, 9/83, pp. 816-818.
Youngquist et al., "Birefringent-Fiber Polarization Coupler", Optics Lett., vol. 8, No. 12, 12/83, pp. 656-658.
Risk et al., "Single-Sideband Frequency Shifting in Birefringent Optical Fiber", Stanford Univ. Pub., 7 pages.
Nosu et al., "Acousto-Optic Phase Modulator for Single Mode Fibers", Electronics Lett., 8/83, vol. 19, No. 16, pp. 605-607.
Kitayama et al., "Frequency Tuning for Stimulated Four Photon Mixing . . . ", Appl. Phys. Lett., vol. 14, No. 7, 10/82, pp. 619-621.
Kingston et al., "Broadband Guided-Wave Optical Frequency Translator . . . ", Appl. Phys. Lett., vol. 42, No. 9, 5/83, pp. 759-762.
Ohashi et al., "Phase-Matched Light Amplification . . .", Appl. Phys. Lett., vol. 41, No. 12, 12/82, pp. 1111-1113.
Gfeller et al., "Modulator and Tap for Optical Fiber Systems", I.B.M. Tech. Discl. Bull., vol. 21, No. 5, 10/78, pp. 2014-2015.

Affiliated with

Also associated with

Rating

Method and apparatus for acousto-optically shifting the frequenc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for acousto-optically shifting the frequenc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for acousto-optically shifting the frequenc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1560576