DocumentCode :
1139675
Title :
Modeling of intensity noise including squeezing in DFB and Fabry-Perot semiconductor laser diodes
Author :
Marcenac, D.D. ; Carroll, J.E.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Volume :
30
Issue :
9
fYear :
1994
fDate :
9/1/1994 12:00:00 AM
Firstpage :
2064
Lastpage :
2072
Abstract :
A new time-domain model using the quantum formalism of the positive-P distribution is used to investigate squeezing in laser diodes, taking into account longitudinal hole burning and distributed noise sources, under steady-state and large-signal modulation. Simulations indicate that the laser structure determines the lowest achievable intensity noise. With losses present or power escaping from the rear facet, this minimum noise may be much higher than expected from the device quantum efficiency. Squeezing appears more difficult in DFB lasers than in Fabry-Perot lasers in our simulations. Mode-partition noise is removed by low-loss passive DBR sections, and such laser diodes are promising sources with low-intensity noise. Intensity noise in the large-signal dynamic regime is also simulated, showing that intensity-squeezed light output is possible
Keywords :
distributed feedback lasers; laser theory; optical hole burning; optical modulation; optical squeezing; semiconductor lasers; time-domain analysis; DFB lasers; Fabry-Perot lasers; distributed noise sources; dynamic regime; intensity noise; large-signal modulation; longitudinal hole burning; losses; mode-partition noise; positive-P distribution; quantum efficiency; quantum formalism; semiconductor laser diodes; simulations; squeezing; steady-state modulation; time-domain model; Diode lasers; Fabry-Perot; Fluctuations; Laser modes; Laser noise; Optical attenuators; Optical interferometry; Optical noise; Optical pumping; Semiconductor device noise;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/3.309865
Filename :
309865
Link To Document :
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