Title :
CW injection locking of a mode-locked semiconductor laser as a local oscillator comb for channelizing broad-band RF signals
Author :
Jung, Thomas ; Shen, Ji-Lin ; Tong, Dennis T K ; Murthy, Sanjeev ; Wu, Ming C. ; Tanbun-Ek, T. ; Wang, Wenshen ; Lodenkamper, R. ; Davis, Richard ; Lembo, L.J. ; Brock, J.C.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
7/1/1999 12:00:00 AM
Abstract :
CW injection locking of mode-locked semiconductor lasers has been experimentally demonstrated. The phases of the mode-locked frequency comb are shown to be coherent with that of the master CW laser. The pulsewidth of the mode-locked laser remains almost unchanged (<2 ps) for a broad range of injection power (-28 to -12 dBm). Pulling of the entire mode-locked frequency comb by 400 MHz has been demonstrated. The coherent multifrequency source can be used as a local oscillator comb for coherent optical channelizers for ultrawide-band RF signals
Keywords :
laser beam applications; laser mode locking; microwave photonics; nonlinear optics; optical communication equipment; semiconductor lasers; wavelength division multiplexing; CW injection locking; broadband RF signals; coherent multifrequency source; coherent optical channelizers; constant pulsewidth; dense WDM; local oscillator comb; master CW laser; mode-locked semiconductor laser; signal channelizing; ultrawide-band RF signals; Fiber nonlinear optics; Frequency; Injection-locked oscillators; Laser mode locking; Local oscillators; Masers; Optical mixing; Optical receivers; Optical sensors; Semiconductor lasers;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
