Title :
Multiwavelength mode-locked InGaAsP laser operating at 12 ch/spl times/2 GHz and 16 ch/spl times/10 GHz
Author :
Park, E.D. ; Croeze, T.J. ; Delfyett, P.J. ; Braun, A. ; Abeles, J.
Author_Institution :
Sch. of Opt./Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA
fDate :
6/1/2002 12:00:00 AM
Abstract :
In this letter, we report on the development and characterization of an InGaAsP semiconductor optical amplifier-(SOA) based ring cavity laser that emits up to 16 wavelengths in the 1550-nm region. The laser is loss modulation mode locked at up to 10 GHz with temporal pulses of /spl sim/25 ps. Spectral control of the emission is accomplished by an intracavity 4-f spectral pulse shaper with a programmable liquid crystal spatial light modulator (SLM) in the Fourier plane. Voltage control of the transmissibility of the pixels of the SLM defines the wavelength channels and allows flattening of channels to produce a uniform intensity of channel outputs.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; laser mode locking; liquid crystal devices; optical pulse shaping; optical transmitters; quantum well lasers; ring lasers; semiconductor optical amplifiers; spatial light modulators; wavelength division multiplexing; 10 GHz; 1550 nm; 2 GHz; 25 ps; Fourier plane; InGaAsP; InGaAsP SOA based ring cavity laser; channel flattening; channel output intensity; intracavity 4-f spectral pulse shaper; loss modulation mode locked laser; multiple quantum-well InGaAsP SOA; multiwavelength mode-locked InGaAsP laser; pixel transmissibility voltage control; programmable liquid crystal spatial light modulator; spectral emission control; temporal pulses; wavelength channels; wavelength-division multiplexing; Laser mode locking; Optical losses; Optical modulation; Optical pulse shaping; Pulse amplifiers; Pulse modulation; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1003110
