Optical pulse generator

Details Optical pulse generator Optical pulse generator

1998-10-14

2000-08-22

Bovernick, Rodney

Optical waveguides

With optical coupler

385 24, 385 27, 372 25, 372 30, G02B 626

Patent

active

061084654

ABSTRACT:
The object of the present invention is to provide an optical pulse generator which very stably generates for a long period of time a high cycling frequency optical pulse chain. In order to obtain this object, in a ring type resonator R, the present invention provides an optical path length regulator 14 which performs high precision optical path length adjustment and an optical path length regulator 60 which performs wide range optical path length adjustment, and extracts a clock signal by converting an optical pulse emitted from the ring type resonator R to an electrical signal by a clock extractor 42, detects the frequency difference between a base frequency signal output form a synthesizer 52 by a frequency difference detector 50, and controls said optical path length regulator 14 and said optical path length regulator 60.

REFERENCES:
patent: 5590142 (1996-12-01), Shan
patent: 5926492 (1999-07-01), Yoshida et al.
Nakazawa, M., et al., Electronic Letters, Jul. 1997, 33(15):1318-1320.
Shan, X., et al., Electronic Letters, May 1996, 32(11):1015-1016.

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