Turn-on Time Delay of Uncooled Semiconductor Laser Diode Subject to External Optical Feedback: Theoretical Analysis

In this paper, the effect of external optical feedback (EOF) on the turn-on time delay (t on ) of uncooled semiconductor laser diode (SLD) is investigated theoretically. The effects temperature of operation (T) and EOF on t on are calculated according to their effect on threshold carrier density (N...

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Bibliographic Details
Published in2009 International Conference on Computer Technology and Development : 13-15 November 2009 Vol. 1; pp. 53 - 57
Main Authors Ab-Rahman, M.S., Hassan, M.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2009
Subjects
Charge carrier density
Delay effects
Diode lasers
external optical feedback
Laser feedback
Laser theory
Optical feedback
Optical fiber networks
Reflectivity
semiconductor laser diodes
Superluminescent diodes
Temperature
temperature effect
turn-on time delay
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Summary:In this paper, the effect of external optical feedback (EOF) on the turn-on time delay (t on ) of uncooled semiconductor laser diode (SLD) is investigated theoretically. The effects temperature of operation (T) and EOF on t on are calculated according to their effect on threshold carrier density (N th ). The temperature dependence (TD) of N th is calculated according to the TD of laser cavity parameters and not by the well-known Parkove relationship. Simulation results show that t on increases as T increases due to increasing of N th . In addition, t on decreases as external reflectivity (r ext ) increases when the phase of reflected light is coherent. While at incoherent reflected light, t on increases sharply around specified value of r ext where this leads to inoperable case for SLD.
ISBN:9780769538921
0769538924
DOI:10.1109/ICCTD.2009.110