Room-temperature multiwavelength erbium-doped fiber ring laser employing equivalent low-frequency shift feedback

Kejiang Zhou; Jianping Yao; Wei Ye; Nam Quoc Ngo; Shum Ping; Swee Chuan Tjin

doi:10.1117/12.543940

15 December 2003 Room-temperature multiwavelength erbium-doped fiber ring laser employing equivalent low-frequency shift feedback

Kejiang Zhou, Jianping Yao, Wei Ye, Nam Quoc Ngo, Shum Ping, Swee Chuan Tjin

Author Affiliations +

Proceedings Volume 5260, Applications of Photonic Technology 6; (2003) https://doi.org/10.1117/12.543940
Event: Applications of Photonic Technology, 2003, Quebec City, Québec, Canada

Abstract

An effective method to implement room temperature operation of multiwavlength erbium-doped fiber ring laser (MW-EDFL) employing equivalent low frequency shift feedback (ELFSF) is presented. Simultaneous multiwavelength lasing with 0.5nm wavelength spacing is experimentally demonstrated by applying a sawtooth signal of the order of 10kHz to a phase modulator inserted in the ring cavity to prevent single-wavelength oscillation. A LiNbO₃ multifunction chip of fiber gyro has been used as the phase modulator, the output coupler, and the polarizer of Lyot periodic filter. The MW-EDFL output is linearly polarization light that meets the requirement of external modulation for WDM applications.

Citation Download Citation

Kejiang Zhou, Jianping Yao, Wei Ye, Nam Quoc Ngo, Shum Ping, and Swee Chuan Tjin "Room-temperature multiwavelength erbium-doped fiber ring laser employing equivalent low-frequency shift feedback", Proc. SPIE 5260, Applications of Photonic Technology 6, (15 December 2003); https://doi.org/10.1117/12.543940

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