標題: The detuning characteristics of rational harmonic mode-locked semiconductor optical amplifier fiber-ring laser using backward optical sinusoidal-wave injection modulation
作者: Lin, GR
Hsueh, PS
Wu, HH
Liao, YS
光電工程學系
Department of Photonics
關鍵字: backward injection;cross-gain modulation;Fabry-Perot laser diode;fiber-ring laser;frequency detuning;harmonic and rational-harmonic;mode-locking;semiconductor optical amplifier
公開日期: 1-Mar-2005
摘要: The modulation waveform, power, and frequency detuning dynamics of a semiconductor optical amplifier fiber-ring laser (SOAFL) harmonic and rational-harmonic mode-locked by using backward injection of a large-signal sinusoidal-wave modulated Fabry-Perot laser diode (FPLD) are studied. The shortest pulsewidth of 53.3 ps at 1 GHz with spectral linewidth of 0.09 run at modulation power of 17 dBm can be obtained, which corresponds to a time-bandwidth product of 2.8. The threshold modulation power and the maximum frequency detuning range for harmonic mode-locking of the SOAFL are 11.5 dBm and 180 kHz, respectively. The mode-locked SOAFL gradually recovers back to sinusoidal-wave modulation mode at the detuning frequency beyond +/- 400 kHz. The pulse broadening slopes for the positive- and negative-frequency detuning regions of 0.48 and 0.375 ps/kHz are,determined, respectively. By enlarging the modulating power and detuning the modulation frequency of FPLD, the SOAFL can be rational-harmonic mode-locked up to 12 GHz with 33-ps pulsewidth.
URI: http://dx.doi.org/10.1109/JLT.2004.839987
http://hdl.handle.net/11536/13962
ISSN: 0733-8724
DOI: 10.1109/JLT.2004.839987
期刊: JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume: 23
Issue: 3
起始頁: 1325
結束頁: 1333
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