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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Published inFifth International Conference on MEMS, NANO, and Smart Systems : Dubai, UAE, 28-30 December 2009 pp. 186 - 190
Main Authors Ab-Rahman, Mohammad Syuhaimi, Hassan, Mazen R
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
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 (rext) increases when the phase of reflected light is coherent. While at incoherent reflected light, ton increases sharply around specified value of r ext where this leads to inoperable case for SLD.
ISBN:9781424456154
1424456150
0769539386
9780769539386
DOI:10.1109/ICMENS.2009.52