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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 23, Iss. 3 — Mar. 1, 2005
  • pp: 1325–

The Detuning Characteristics of Rational Harmonic Mode-Locked Semiconductor Optical Amplifier Fiber-Ring Laser Using Backward Optical Sinusoidal-Wave Injection Modulation

Gong-Ru Lin, Pai-Shen Hsueh, Hsiao-Hua Wu, and Yu-Sheng Liao

Journal of Lightwave Technology, Vol. 23, Issue 3, pp. 1325- (2005)


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Abstract

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-Pérot laser diode (FPLD) are studied. The shortest pulsewidth of 53.3 ps at 1 GHz with spectral linewidth of 0.09 nm 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.

© 2005 IEEE

Citation
Gong-Ru Lin, Pai-Shen Hsueh, Hsiao-Hua Wu, and Yu-Sheng Liao, "The Detuning Characteristics of Rational Harmonic Mode-Locked Semiconductor Optical Amplifier Fiber-Ring Laser Using Backward Optical Sinusoidal-Wave Injection Modulation," J. Lightwave Technol. 23, 1325- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-3-1325

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