DocumentCode :
1108792
Title :
Quantum noise in superluminescent diodes
Author :
Yurek, Aileen M. ; Taylor, Henry F. ; Goldberg, Lew ; Weller, Joseph F. ; Dandridge, Anthony
Author_Institution :
Naval Research Laboratory, Washington, DC, USA
Volume :
22
Issue :
4
fYear :
1986
fDate :
4/1/1986 12:00:00 AM
Firstpage :
522
Lastpage :
527
Abstract :
Intensity noise in a superluminescent diode (SLD) has been studied over the frequency range from 100 Hz to 2 MHz. The 
noise which dominates at low frequencies (< 50 kHz) is superceded by a flat "white noise" spectrum at higher frequencies (> 500 kHz). A more extensive investigation has been carried out in this higher frequency regime, where the intensity noise is assumed to result from quantum fluctuation effects. For a given SLD driving current, the excess noise power is found to be a linear function of photodetector current to the maximum observed level of 12 dB. These results agree well with the behavior predicted by a quantum amplifier model for the SLD.
noise which dominates at low frequencies (< 50 kHz) is superceded by a flat "white noise" spectrum at higher frequencies (> 500 kHz). A more extensive investigation has been carried out in this higher frequency regime, where the intensity noise is assumed to result from quantum fluctuation effects. For a given SLD driving current, the excess noise power is found to be a linear function of photodetector current to the maximum observed level of 12 dB. These results agree well with the behavior predicted by a quantum amplifier model for the SLD.Keywords :
Superluminescent diodes; Fluctuations; Frequency; Laser modes; Laser noise; Light sources; Low-frequency noise; Optical noise; Predictive models; Stimulated emission; Superluminescent diodes;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1986.1072985
Filename :
1072985
Link To Document :
