Title :
Linking two optical frequency combs by heterodyne optical phase locking between diode lasers at 2.6-THz frequency-difference
Author :
Widiyatmoko, B. ; Kourogi, M. ; Ohtsu, M.
Author_Institution :
Interdisciplinary Graduate Sch. of Sci. & Eng., Tokyo Inst. of Technol., Japan
fDate :
4/1/1999 12:00:00 AM
Abstract :
Two optical frequency combs (OFC) with total span of 8 THz have been realized and linked by injecting two laser beams into one OFC generator. Two lasers whose frequencies were separated by 2.6 THz were heterodyne phase-locked to link the two combs. The phase-locked loop bandwidth was 1 MHz and the phase error variance was estimated to be 0.08 rad/sup 2/.
Keywords :
electro-optical modulation; frequency standards; laser frequency stability; laser mode locking; laser noise; 1 MHz; 8 THz; OFC generator; THz frequency-difference; diode lasers; frequency standards; heterodyne optical phase locking; heterodyne phase-locked; laser beam injection; optical frequency combs; phase error variance; phase-locked loop bandwidth; total span; Diode lasers; Frequency conversion; Frequency measurement; Joining processes; Nonlinear optics; Optical attenuators; Optical frequency conversion; Optical mixing; Optical modulation; Optical pulse generation;
Journal_Title :
Photonics Technology Letters, IEEE
