Theoretical investigation of gain-clamped semiconductor optical amplifiers using the amplified spontaneous emission compensating effect
JOSA B, Vol. 23, Issue 12, pp. 2503-2510 (2006)
http://dx.doi.org/10.1364/JOSAB.23.002503
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Abstract
The theoretical model on gain-clamped semiconductor optical amplifiers (GC-SOAs) based on compensating light has been constructed. Using this model, the effects of insertion position and peak reflectivity of the fiber Bragg grating (FBG) on the gain clamping and noise figure (NF) characteristics of GC-SOA are analyzed. The results show that the effect of the FBG insertion position on gain clamping is slight, but the lower NF can be obtained for input FBG-type GC-SOA; when the FBG peak wavelength is designed to close the signal wavelength, the gain clamping and NF characteristics that can be reached are better. Further study shows that, with the increased peak reflectivity of the FBG, the critical input power is broadened and the gain tends to be varied slowly; the larger bias current is helpful to raise gain and decrease the noise figure but is harmful to a gain flatness characteristic.
© 2006 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(250.5980) Optoelectronics : Semiconductor optical amplifiers
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: April 19, 2006
Revised Manuscript: September 3, 2006
Manuscript Accepted: September 3, 2006
Citation
Xin-Hong Jia, "Theoretical investigation of gain-clamped semiconductor optical amplifiers using the amplified spontaneous emission compensating effect," J. Opt. Soc. Am. B 23, 2503-2510 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-12-2503
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