Optical-frequency-stabilized light source

Details Optical-frequency-stabilized light source Optical-frequency-stabilized light source

1998-02-20

2000-09-19

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 372 32, H04B 1004

Patent

active

061220876

ABSTRACT:
The purpose of the invention is to offer an optical-frequency-stabilized light source with high accuracy and stability of the optical frequency. An optical splitter 8 splits output light from a local light source 7 into two beams. An optical detector 2 detects beat signals formed by the superimposition of the optical frequency difference between the local light source 7 and the output light, and a rectifier 3 rectifies the beat signal. A time measuring circuit 4 measures the time at which the beat signal was obtained. A frequency measuring circuit 5 measures the beat frequency. A CPU 6 outputs the deviation between the output light from the local light source 7 and the target optical frequency. A Fabry-Perot etalon transmission detection circuit 11 outputs an electrical signal corresponding to the optical frequency of the output light from an optical splitter 9. A control circuit 12 controls the optical frequency of the local light source 7 such that the electrical signal always matches the electrical signal corresponding to the target optical frequency. A Fabry-Perot etalon control circuit 10 corrects the relationship between the output electrical signal and the optical frequency of the light input to the Fabry-Perot etalon transmission detection circuit 11.

REFERENCES:
patent: 5510922 (1996-04-01), Naito
patent: 5861975 (1999-01-01), Sakuyama et al.
patent: 5943152 (1999-08-01), Mizrahi et al.
S. Nogiwa et al., "Development of Lightwave Frequency Synthesizer Using a Time Shared Lightwave Reference Frequency" in Proceedings of the 1996 Communication Society Conference of IEICE, Sep. 18-21, 1996, Communications Society, The Inst. of Electronics, Information & Communication Engineers B-1067, p. 552.

Affiliated with

Also associated with

Rating

Optical-frequency-stabilized light source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical-frequency-stabilized light source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical-frequency-stabilized light source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1079113