Title :
Closed loop spectral control of multiwavelength 1550 laser
Author :
Park, E.D. ; Croeze, T.J. ; Delfyett, P.J., Jr. ; Braun, A. ; Abeles, J.
Author_Institution :
Sch. of Opt./CREOL, Central Florida Univ., Orlando, FL, USA
fDate :
1/3/2002 12:00:00 AM
Abstract :
The spectral flatness of multiwavelength emission from an InGaAsP semiconductor optical amplifier based ring laser is controlled by a programmable liquid crystal spatial light modulator based on spectrally monitoring the individual wavelength intensities of the laser output. Spectrally equal amplified output is also shown by predistorting the laser to account for amplifier spectral gain dependence
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; liquid crystal devices; optical variables control; quantum well lasers; ring lasers; semiconductor optical amplifiers; spatial light modulators; 1550 nm; InGaAsP; InGaAsP semiconductor optical amplifier based ring laser; MQW; amplifier spectral gain dependence; closed loop spectral control; individual wavelength intensity spectral monitoring; laser output; multiwavelength 1550 laser; multiwavelength emission; programmable liquid crystal spatial light modulator; spectral flatness; spectrally equal amplified output;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020031
