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Optical Pulse Characterization in a Regeneratively Mode-Locked Fiber Ring Laser

✍ Scribed by Kamal K. Gupta; Dalma Novak; Hai-Feng Liu

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
135 KB
Volume
5
Category
Article
ISSN
1068-5200

No coin nor oath required. For personal study only.

✦ Synopsis

We characterize optical pulses generated using a regeneratively mode-

Ž

. locked fiber ring laser RML-FRL in terms of pulsewidth and pulse noise. These results are then compared with pulses obtained from a conventional Ž . active harmonically mode-locked fiber ring laser ML-FRL . We establish that under the same operating conditions, optical pulses from the RML-FRL are shorter by more than 8% and exhibit a 15-dB improvement in phase noise compared to those obtained from ML-FRL. In addition, over a frequency range 100 Hz᎐100 kHz, a reduced amplitude noise of 0.3% and rms timing jitter of 0.26 ps have been estimated for the RML-FRL pulses compared to 0.6% and 0.38 ps, respectively, for the pulses in the ML-FRL. Relaxation oscillations are also completely eliminated in the RML-FRL.

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