Single mode fiber optic single sideband modulator and method of

Details Single mode fiber optic single sideband modulator and method of Single mode fiber optic single sideband modulator and method of

1987-05-15

1988-12-20

Sikes, William L.

350 9615, 350 9613, 350 9614, 350 9630, 350371, 350358, 350320, G02B 602, G02B 530, G02F 111

Patent

active

047922079

ABSTRACT:
A fiber optic frequency shifter comprising two waveguides having different indices of refraction. In some embodiments the waveguides are two modes of propagation in one fiber. Plural distributed coupling ridges, or electrodes mounted adjacent piezoelectric materials, are independently driven to apply sinusoidally varying forces to the fiber. In some embodiments, the phase relationship of the driving signals for the electrodes or ridges is such that a travelling acoustic wave is launched in the fiber. In other embodiments, regions of stress in the fiber are created by an acoustic wave coupled into the fiber from a transducer coupled to an acoustic medium surrounding the fiber. The input carrier light is shifted in frequency by the frequency of the acoustic wave.

REFERENCES:
patent: 3406358 (1968-10-01), Seidel et al.
patent: 3625589 (1971-12-01), Snitzer
patent: 3645603 (1972-02-01), Smith
patent: 3931518 (1976-01-01), Miller
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4312562 (1982-01-01), Segawa et al.
patent: 4319186 (1982-03-01), Kingsley
patent: 4449210 (1984-05-01), Myer
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4536058 (1985-08-01), Shaw et al.
patent: 4589728 (1986-05-01), Dyott et al.
patent: 4615582 (1986-10-01), Lefevre et al.
patent: 4684215 (1987-08-01), Shaw et al.
patent: 4735485 (1988-04-01), Shaw et al.
Youngquist et al., "Birefringent-Fiber Polarization Coupler", Optics Lett., vol. 8, No. 12, 12/83, pp. 656-658.
Kingston et al., "Broad Band Guided Wave Optical Frequency . . . Bragg Array", Applied Physics Letters, vol. 42, No. 9, May 1, 1983.
Gfeller, "Electroacoustic Transducers . . . ", IBM Tech. Disc. Bull., vol. 21, No. 2, 7/78, pp. 813-814.
Ohashi et al., "Phase-Matched Light Amplification . . . ", Applied Physics Letters, vol. 41, No. 12, 12/82, pp. 1111-1113.
Kitayama et al., "Stress-Induced Frequency Tuning . . . ", Applied Physics Letters, vol. 41, No. 4, 8/82, pp. 322-324.
Risk et al., "Single-Sideband Frequency Shifting in Birefringent Optical Fiber", SPIE '84.
Gfeller et al., "Modulator and Tap for Optical Fiber Systems", IBM Technical Disclosure Bulletin, vol. 21, No. 5, Oct. 1978.
Nosu et al., "Acoustooptic Phase Modulator for Single Mode Fibers", 47th Int'l. Conf. on Integrated Optics . . . Tokyo, Paper 28C3-5.
Nosu et al., "Acousto-Optic Frequency Shifter for Single Mode Fibers", Electronic Letters, vol. 19, No. 20, pp. 816-818, 9/29/83.
Fraser et al., "The Design of Efficient Broadband Wedge Transducer", Applied Physics Letters, vol. 32, No. 11, Jun. 1, 1978, pp. 698-700.
Lardat et al., "Applications of Edge Bonded Transducers to Saw Components", Proceeding of the IEEE, vol. 64, No. 5, May 1976, pp. 627-630.
Cook et al., "Surface Waves and Ultrasonic Frequencies", ASTM Bulletin, (TP127), May 1954, pp. 81-84.
Heisman et al., "Integrated-Optical Single-Sideband . . . Shifter", IEEE J. of Quantum Electronics, vol. QE-18, No. 4, Apr. 1982, pp. 767-771.
Ulrich et al., "Single-Mode Fiber-Optical Polarization Rotator", Applied Optics, vol. 18, No. 11, Jun. 1, 1979, pp. 1857-1861.
Yariv, "Coupled-Mode Theory for Guided-Wave Optics", IEEE Journal of Quantum Electronics, vol. QE-9, Sep. 1973, pp. 919-933.
Chinone et al., "Elasto-Optic Polarization Measurement in Optical Fiber", Optics Lettersvol. 6, No. 1, Jan. 1981, pp. 16-18.
Miller, "On Solutions for Two Waves with Periodic Coupling", The Bell System Technical Journal, Oct. 1968, pp. 1801-1822.
Katsuyama, "Single-Mode Propagation in 2-Mode Region of Optical Fibre by Using Mode Filter", Electronics Letters, vol. 15, 1979, pp. 442-444.
Harris et al., "Acousto-Optic Tunable Filter", J. of Optical Society of America, vol. 59, No. 6, Jun. 1969, pp. 744-747.
Alferness et al., "Waveguide Electro-Optic Polarization Transformer", Applied Physics Letters, vol. 38, No. 9, May 1, 1981, pp. 655-657.
Alferness et al., "Tunable Electro-Optic Waveguide . . . Filter", Applied Physics Letters, vol. 40, No. 10, 15 May 1982, pp. 861-862.
Goto et al., "Optical Switching Characteristics . . . Acoustic Waves", Transactions of the IECE of Japan, vol. E66, No. 7, Jul. 1983, pp. 442-449, Tokyo.
Jeunhommet et al., "Directional Coupler for Multimode Optical Fibers", Applied Physics Letters, vol. 29, No. 8, 15 Oct. 1976, pp. 485-487.
Heismann et al., "Integrated-Optical Single-Sideband . . . ", IEEE Transactions on Microwave Theory and Techniques, vol. MIT-30, No. 4, Apr. 1982, pp. 613-617.

Affiliated with

Also associated with

Rating

Single mode fiber optic single sideband modulator and method of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single mode fiber optic single sideband modulator and method of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single mode fiber optic single sideband modulator and method of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1906732