NDLI: Characterization of Transient Response in Fiber Grating Fabry–Perot Lasers

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Characterization of Transient Response in Fiber Grating Fabry–Perot Lasers

Content Provider	Semantic Scholar
Author	Hisham, Hisham Kadhum Mahdiraji, G. Amouzad Abas, A. F. Mahdi, M. A. Adikan, Faisal Rafiq M.
Copyright Year	2012
Abstract	A comprehensive study on the transient response of fiber-grating Fabry-Perot (FGFP) laser is numerically conducted. Fiber Bragg grating (FBG) is used as a wavelength selective element to control the external optical feedback (OFB) level. In addition to the external OFB level, the effect of other external cavity parameters such as temperature, injection current, dc-bias level, coupling coefficient, and gain compression factor on transient response characteristics of the laser are investigated. The temperature dependence (TD) of response characteristics is calculated according to TD of laser parameters instead of well-known Pankove relationship. Results show that, by increasing the laser injection current, the relaxation oscillation's amplitude, frequency, and damping rate are increased, while the laser turn-on time delay is reduced. In addition to the injection current and dc-bias level, the turn-on time delay can be reduced by increasing OFB reflectivity. It is shown that the optimum external fiber length (Lext) is 3.1 cm and the optimum range of working temperature for FGFP laser is within ±2°C from the FBG reference temperature (To). Also, it is shown that antireflection (AR) coating facet reflectivity value of 1 ×10-2 is sufficient for the laser to operate at good response characteristics with low fabrication complexity.
Starting Page	2353
Ending Page	2371
Page Count	19
File Format	PDF HTM / HTML
DOI	10.1109/JPHOT.2012.2231957
Volume Number	4
Alternate Webpage(s)	https://umexpert.um.edu.my/file/publication/00003211_90898.pdf
Alternate Webpage(s)	https://doi.org/10.1109/JPHOT.2012.2231957
Journal	IEEE Photonics Journal
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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