標題: The effect of backward injecting wavelength on the mode-locking dynamics of a semiconductor amplifier based fiber laser
作者: Chu, YS
Liao, YS
Lin, YH
Chang, YC
Lin, GR
光電工程學系
Department of Photonics
關鍵字: semiconductor optical amplifier;fiber laser;harmonic mode-locking;backward optical injection;cross-gain modulation
公開日期: 2005
摘要: The wavelength dependent mode-locking performances of a SOAFL under the backward optical injection via a sinusoidal-modulated distributed feedback laser diode (DFBLD) at 1 GHz repetition rate are characterized. The backward optical injection has to be sufficiently high to saturate a SOA and then depletes most of the excited state electrons in the SOA. In order to obtain shorter mode-locking pulsewidth, the DFBLD injecting wavelength should be slightly longer than the peak wavelength of SOA gain to benefit from shorter gain-recovery time and larger modulation depth. As the wavelength of a DFBLD approach the central wavelength of SOA, the shortest pulse was measured via a digital sampling oscilloscope (DSO). The pulses can also be obtained by DFBLD backward injection at 1535 rum in feedback of SOAFL, leading to the optimized pulsewidths of 22.7 ps.
URI: http://hdl.handle.net/11536/17646
http://dx.doi.org/10.1117/12.577066
ISBN: 0-8194-5578-4
ISSN: 0277-786X
DOI: 10.1117/12.577066
期刊: SEMICONDUCTOR AND ORGANIC OPTOELECTRONIC MATERIALS AND DEVICES
Volume: 5624
起始頁: 327
結束頁: 334
Appears in Collections:Conferences Paper


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