Title :
Noise characteristics and radiation spectra of multimode MQW laser diodes during mode-hopping effect
Author :
Pralgauskaité, Sandra ; Palenskis, Vilius ; Saulys, Bronius ; Matukas, Jonas ; Kornijcuk, Vladimir ; Smetona, Saulius
Author_Institution :
Radiophys. Dept., Vilnius Univ., Vilnius, Lithuania
Abstract :
Comprehensive investigation of noise (optical and electrical fluctuations and cross-correlation factor between them) and radiation spectrum characteristics have been carried out for InGaAsP/InP Fabry-Perot (FP) multiple quantum well laser diodes (LDs). Mode-hopping occurs at particular operation conditions (injection current and temperature) in FP LD operation. LD radiation spectrum is outspread and intensive highly correlated optical and electrical fluctuations are observed during mode-hopping. Physical processes during mode-hopping have 1 μs - 1 ms characteristic times and are caused by generation-recombination and carrier capture processes in centers formed by defects in barrier layer.
Keywords :
III-V semiconductors; fluctuations; gallium arsenide; indium compounds; laser beams; laser modes; laser noise; optical correlation; quantum well lasers; Fabry-Perot multiple quantum well laser diodes; InGaAsP-InP; barrier layer; carrier capture; carrier generation; carrier recombination; correlated electrical fluctuations; correlated optical fluctuations; cross-correlation factor; injection current; laser noise; mode-hopping effect; multimode MQW laser diodes; radiation spectra; Diode lasers; Fluctuations; Noise; Optical filters; Optical noise; Optical sensors; Temperature; cross-correlation factor; electrical noise; laser diode; mode-hopping; optical noise;
Conference_Titel :
Noise and Fluctuations (ICNF), 2011 21st International Conference on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4577-0189-4
DOI :
10.1109/ICNF.2011.5994327
