A unidirectional multiwavelength erbium-doped fiber ring laser without isolator at room temperature

Guoyong Sun; Ronghui Qu; Jing Yang; Xiangzhao Wang; Zujie Fang

doi:10.1117/12.582107

10 January 2005 A unidirectional multiwavelength erbium-doped fiber ring laser without isolator at room temperature

Guoyong Sun, Ronghui Qu, Jing Yang, Xiangzhao Wang, Zujie Fang

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.582107
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

Highly uniform multiwavelength erbium-doped fiber ring laser with a sinusoidal phase modulator and line intervals of 0.45 nm is demonstrated. The flat and stable output distribution is realized by optimizing modulation voltage and frequency for the sine phase modulator. Simultaneous 30 lasing lines are obtained in power difference less than 2 dB. In addition, the implemented cavity structure can support unidirectional operation even without optical isolators. The power difference between clockwise and counterclockwise direction is higher than 20 dB, almost independent of pumping powers and lasing wavelengths in lasing operation.

Citation Download Citation

Guoyong Sun, Ronghui Qu, Jing Yang, Xiangzhao Wang, and Zujie Fang "A unidirectional multiwavelength erbium-doped fiber ring laser without isolator at room temperature", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.582107

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