Optical integrated circuit for heterodyne detection

Details Optical integrated circuit for heterodyne detection Optical integrated circuit for heterodyne detection

1987-12-28

1989-06-27

Sikes, William L.

Coherent light generators

Particular beam control device

Mode locking

372 50, 372 92, H01S 3098

Patent

active

048436097

ABSTRACT:
Disclosed is an optical integrated circuit for heterodyne detection. The optical integrated circuit comprises: a semiconductor substrate; an active region of a semiconductor laser; two optical waveguides; a photo detector; and an optical coupler composed of the waveguides. The emission of light from the active region of the semiconductor laser is synthesized as local oscillation light with the transmission light. The synthesized light travels through the optical coupler and is detected by the photo detector.

REFERENCES:
patent: 4515431 (1985-05-01), Shaw et al.
patent: 4674830 (1987-06-01), Shaw et al.
patent: 4720160 (1988-01-01), Hicks, Jr.
patent: 4723824 (1988-02-01), Shaw et al.
Optical FM Signal Amplification by Injection Locked and Resonant Type Semiconductor Laser Amplifiers By: Soichi Kobayashi, member IEEE, and Tatsuya Kimura, senior member, IEEE, IEEE Journal of Quantum Electronics, vol. QE-18, No. 4, Apr. 1982.
Integrated-Optic, Narrow-Linewidth Laser, By: S. K. Korotky, E. A. J. Marcatili, G. Eisenstein, J. J. Veselka, F. Heismann, and R. C. Alferness, Appl. Phys. Lett. 49(1), 7 Jul. 1986.
Narrow Spectral Linewidth Characteristics of Monolithic Integrated-Passive-Cavity InGaAsP/InP Semiconductor Lasers, Electronics Letters, 25th Apr. 1985, vol. 21, No. 9, pp. 374-376.

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