Coherent detection transceiver

Details Coherent detection transceiver Coherent detection transceiver

1993-03-17

1994-10-11

Goldstein, Herbert

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359113, 359130, 372 96, H04B 1000, H04B 1024

Patent

active

053552393

ABSTRACT:
A coherent detection transceiver comprises a stack of semiconductor layers with an active layer (12) and a grating (16) having a phase shifter (18). An electrode (30) is placed above the phase shifter in order to tap a voltage. This voltage is processed in a heterodyne circuit (36) in order to restore the modulation of the light beam introduced into the active layer.

REFERENCES:
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patent: 5020153 (1991-05-01), Choa et al.
patent: 5031188 (1991-07-01), Koch et al.
patent: 5111475 (1992-05-01), Ackerman et al.
Patent Abstracts of Japan, vol. 13, No. 476, (E-837), Oct. 10, 1989, JP-A-11 87 889, Jul. 27, 1989, K. Uomi, et al., "Distributed Feedback Type Semiconductor Laser".
Patent Abstracts of Japan, vol. 15, No. 470, (E-1139) 1991, JP-A-32 03 268, Sep. 4, 1991 Y. Hirayama, "Coherent Light Receiver".

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