Optical modulation/multiplexing circuit

Details Optical modulation/multiplexing circuit Optical modulation/multiplexing circuit

2005-01-11

2005-01-11

Boutsikaris, Leo (Department: 2872)

Optical waveguides

With optical coupler

Plural

C385S001000, C385S014000, C385S122000, C385S129000, C398S098000, C398S102000

Reexamination Certificate

active

06842565

ABSTRACT:
An optical modulation/multiplexing circuit can fabricate a plurality of nonlinear optical waveguide devices and silica optical waveguides through a small number of processes, and achieve the simplification of the fabrication process and stabilization of the operation by hybrid integration with reduced connection loss. It employs lithium niobate domain inversion optical waveguides as nonlinear optical switches, and implements functions necessary for modulation and multiplexing such as input, splitting, multiplexing and timing adjustment of optical modulation signals and an optical clock signal by connecting glass waveguides to the input and output terminals of the domain inversion optical waveguides. Nonlinear optical media generate a second harmonic light beam of the optical clock signal, and at the same time produces a light beam with a frequency corresponding to the difference frequency of the two high frequency signals, the second harmonic light beam and the signal pulses.

REFERENCES:
patent: 20030228150 (2003-12-01), Dave
M. Takara et al., “Integrated optical time-division-multiplexer based on planar lightwave circuit”, OFC/IOOC '99, vol. 4, 21-26, Feb. 1999 (pp. 135-137).*
S. Kawanishi et al., “All-optical modulation and time-division-multiplexing of 100 Gbit/s signal using quasi-phase matched mixing in LiNb03 waveguides”, Electronic Letters, 36(18), Aug. 2000 (pp. 1568-1569).*
Govind P. Agrawal,Nonlinear Fiber Optics, Second Edition, Academic Press, 1995, Chapter 10, pp. 404-407.
S. Kawanishi et al.,All-Optical Modulation and Time-Division-Multiplexing of 100 Gbit/s Signal Using Quasi-Phasematched Mixing in LiNbO3Waveguides, Electronic Letters, vol. 136, No. 18, Aug. 31, 2000, pp. 1568-1569.
F. Ebisawa et al.,High-Speed 32-Channel Optical Wavelength Selector Using PLC Hybrid Integration, Technical Digest of Optical Fiber Communication Conference (OFC), paper ThB1, San Diego, 1999.

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