Wide band electro-optical modulators

Details Wide band electro-optical modulators Wide band electro-optical modulators

2005-09-20

2005-09-20

Font, Frank G. (Department: 2883)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S003000, C385S130000

Reexamination Certificate

active

06947614

ABSTRACT:
An optical modulator includes a waveguide structure forming a two-wave interferometer made of an electro-optical material, and two arms, a set of electrodes connected to a controllable electric source for applying an electric field on at least one of the arms of the interferometer, so as to vary the phase difference between light waves along one or the other of the two arms. The modulator includes two sets of electrodes placed respectively on each of the interferometer arms, one in the non-reversed region of the electro-optical material, the other in the reversed region, and a delay line placed between the control electronics of the electrode sets introducing a delay equal to the light propagation time in the first electrode set.

REFERENCES:
patent: 5267336 (1993-11-01), Sriram et al.
patent: 5291565 (1994-03-01), Schaffner et al.
patent: 5339190 (1994-08-01), Yamamoto et al.
patent: 6055251 (2000-04-01), Ouchi et al.
patent: 6101296 (2000-08-01), Tavlykaev et al.
patent: 6229828 (2001-05-01), Sanders et al.
patent: 6236772 (2001-05-01), Tavlykaev et al.
T. Kishino et al., “70+ mu m deep domain inversion in X-cut LiNbO/sub 3/ and its use in a high-speed bandpass integrated-optic modulator”, Applied Physics Letters, Jun. 26, 2000, AIP, USA, vol. 76, No. 26, pp. 3852-3854, XP00096335, ISSN: 0003-6951.
Patent Abstracts of Japan, vol. 2000, No. 12, Jan. 3, 2001 & JP 2000 249994 A (Fujitsu Ltd), Sep. 14, 2000 abstract.
J.H. Schaffner et al., “Velocity-Matching in Millimeter Wave Integrated Optic Modulators with Periodic Electrodes” Journal of Lightwave Technology, US, IEEE. New York, vol. 12, No. 3, Mar. 1, 1994, pp. 503-511, XP000469804, ISSN: 0733-8724.
K.W. Hui et al., “Electrode Optimization for High-Speed Traveling-Wave Integrated Optic Modulators” Journal of Lightwave Technology, US, IEEE. New York, vol. 16, No. 2, Feb. 1, 1998, pp. 232-238, XP000750663, ISSN: 0733-8724.
A.S. Semenov et al., “Compensation of the Velocity Mismatch in Traveling-Wave Modulators Utilizing a Cumulative Interaction” Soviet Journal of Quantum Electronics, US, American Institute of Physics. Woodbury, NY, vol. 22, No. 1, 1992, pp. 73-78, XP000273648.
S. Samson et al., “Electro-optic measurements using a Mach-Zehnder interferometer with domain reversals” Photonic Component Engineering and Applications, Orlando, FL, USA, Apr. 8-9, 1996, vol. 2749, pp. 186-194, XP001016441 Proceedings of the SPIE—The International Society for Optical Engineering, 1996, SPIE-Int. Soc.Opt.Eng, USA, ISSN: 0277-786X.

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