Electro-optic modulator with resonator

Details Electro-optic modulator with resonator Electro-optic modulator with resonator

2005-03-29

2005-03-29

Healy, Brian M. (Department: 2883)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S001000, C385S040000, C385S041000

Reexamination Certificate

active

06873750

ABSTRACT:
An electro-optic modulator structure for particular use in narrowband optical subcarrier systems. A traveling wave is established across the active region of the device, instead of a standing wave. This is accomplished through the use of a directional resonator structure that prevents reverse-traveling waves from being established within the resonator. Hence, the electric field is applied to the traveling optical wave in a similar fashion to a traveling-wave modulator, except that the traveling wave has a much greater amplitude due to the build-up of energy inside the resonator. Since the modulator is operated in a traveling-wave fashion, it can be tuned to operate at any frequency using tuning elements, regardless of the length of the active region. Furthermore, the microwave and optical signals can be velocity-matched to mitigate optical transit time effects that are normally associated with a resonant modulator utilizing a standing-wave electrode structure.

REFERENCES:
patent: 3710063 (1973-01-01), Aine
patent: 4119930 (1978-10-01), Abrams et al.
patent: 5347392 (1994-09-01), Chen et al.
patent: 5414552 (1995-05-01), Godil
patent: 5787211 (1998-07-01), Gopalakrishnan
patent: 6351326 (2002-02-01), Morse et al.
patent: 6504640 (2003-01-01), Gopalakrishnan
patent: 6529646 (2003-03-01), Wight et al.
patent: 20030215170 (2003-11-01), Hum et al.
Performance and Modeling of Resonantly Enhanced LiNbO3Modulators for Low-Loss Analog Fiber-Optic Links, Ganesh K. Gopalakarishnan and William K. Burns, IEEE Transactions on Microwave Theory and Techniques, vol.42, No. 12, Dec. 1994, p. 2650-2656.
Electro-optic Modulators for Radio-on-Fiber Applications, Sean V. Hum, MSc. Thesis, University of Calgary, Dec. 2001 (catalogued ˜Jul. 2002).
Fabry-Perot Type Resonantly Enhanced Mach-Zender Modulator, Y. S. Visagathilar, A. Mitchell, R. B. Waterhouse, MWP'99 Digest, pp. 17-20, 1999.
20 GHz Optical Waveguide Sampler, Lynne A. Molter-Orr, Hermann A. Haus, Frederick J. Leonberger, IEEE Journal of Quantum Electronics, vol. QE-19, No. 12, Dec. 1983.
Traveling-Wave Resonators, L. J. Milosevic, R. Vautey, IRE Transactions on Microwave Theory and Techniques, vol. 6, pp. 136-143, Apr. 1958.
Resonance Properties of Ring Circuits, Friedrich J. Tischer, vol. 5, pp. 51-56, Jan. 1957.
Field Theory of Guided Waves, Collin, pp. 433-441, Wiley-IEEE Press, New York, 1991.
Fields and Waves in Communication Electronics, Ramo, Whinnery, Van Duzer, pp. 511-533, John Wiley and Sons, New York, 1965.

Affiliated with

Also associated with

Rating

Electro-optic modulator with resonator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-optic modulator with resonator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-optic modulator with resonator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3444918