Title :
Synchronized transform-limited operation of 10-GHz colliding pulse mode-locked laser
Author :
Ji, C. ; Chubun, N. ; Broeke, R.G. ; Cao, J. ; Du, Y. ; Yoo, S.J.B. ; Liou, K.Y. ; Lothian, J.R. ; Vatanapradit, S. ; Chu, S.N.G. ; Patel, B. ; Hobson, W.S. ; Tsang, W.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA
Abstract :
We report a 10-GHz colliding pulse mode-locked laser fabricated with integrated active-passive waveguides. The laser fabrication adopted a deep reactive ion etching and single-step metal-organic vapor phase epitaxy regrowth process for forming the buried heterostructure waveguide. Clean output pulses resulted from laterally tilting the active-passive interface and effectively suppressing residual back-reflections at the interface. Hybrid mode-locking resulted in a synchronized transform-limited sech2optical waveform. Pulsewidth, chirp, timing jitter, and frequency-locking range were investigated through systematic device biasing condition optimization
Keywords :
MOCVD; chirp modulation; integrated optics; laser beams; laser mode locking; optical fabrication; optical pulse generation; optical waveguides; semiconductor lasers; sputter etching; timing jitter; vapour phase epitaxial growth; 10 GHz; active-passive interface; buried heterostructure waveguide; chirp; colliding pulse mode-locking; deep reactive ion etching; frequency-locking; integrated active-passive waveguides; metal-organic vapor phase epitaxy regrowth; pulsewidth; residual back-reflections; timing jitter; transform-limited optical waveform; Epitaxial growth; Etching; Frequency synchronization; Laser mode locking; Optical device fabrication; Optical pulses; Optical waveguides; Particle beam optics; Space vector pulse width modulation; Waveguide lasers; Active–passive integration; colliding pulse mode-locked (CPM) laser; frequency-locking range; hybrid mode-locking (HML); timing jitter; transform-limited pulse;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.870185
