Title :
Quantum-well design for monolithic optical devices with gain and saturable absorber sections
Author :
Nikolaev, Valentin V. ; Avrutin, Eugene A.
Author_Institution :
Dept. of Electron., Univ. of York, UK
Abstract :
We propose a new design of semiconductor quantum-well heterostructures, which can be used to improve the performance of monolithic mode-locked diode lasers and all-optical signal-processing devices with gain and saturable absorber sections. Numerical modeling shows that this design can increase the carrier sweep-out rate from the absorber section by several orders of magnitude, while retaining high carrier confinement on the ground level making for efficient signal amplification by the gain sections.
Keywords :
laser mode locking; laser theory; optical saturable absorption; optical transmitters; quantum well lasers; semiconductor device models; absorber section; all-optical signal-processing devices; carrier sweep-out rate; gain sections; ground level; high carrier confinement; laser gain section; monolithic mode-locked diode lasers; monolithic optical devices; numerical modeling; quantum-well design; saturable absorber sections; semiconductor quantum-well heterostructures; signal amplification; Carrier confinement; Optical design; Optical devices; Optical pulse generation; Optical sensors; Optical signal processing; Performance gain; Quantum well devices; Quantum well lasers; Signal design;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.819399
