Title :
3.17-THz frequency-difference measurement between lasers using two optical frequency combs
Author :
Kourogi, M. ; Widiyatmoko, B. ; Ohtsu, M.
Author_Institution :
Interdisciplinary Graduate Sch. & Eng., Tokyo Inst. of Technol., Yokohama, Japan
fDate :
4/1/1996 12:00:00 AM
Abstract :
In order to increase the signal-to-noise ratio in the measurement of frequency-difference between two lasers by using an optical frequency comb generator (OFC-G), two laser beams were combined into the OFC-G. Then many sidebands that contribute to the beat signal generation were generated. We observed the spectrum of the beat signal with a signal-to-noise ratio of 30 dB when the frequency-difference between two lasers was 3.17 THz.
Keywords :
Fabry-Perot resonators; electro-optical modulation; frequency measurement; laser variables measurement; 3.17-THz frequency-difference measurement; Fabry Perot cavity; OFC-G; beat signal generation; electrooptic modulator; laser beams; lasers; optical frequency comb generator; sidebands; signal-to-noise ratio; two optical frequency combs; Electrooptic modulators; Frequency measurement; Laser beams; Laser feedback; Laser theory; Optical modulation; RF signals; Semiconductor lasers; Signal generators; Signal to noise ratio;
Journal_Title :
Photonics Technology Letters, IEEE
