Yb<sup>3+</sup>-Doped Non-π-Phase-Shifted Distributed Feedback
Fibre Lasers

Chin. Phys. Lett.

2002, Vol. 19

Issue (8): 1108-1111 DOI:

Original Articles

Yb³⁺-Doped Non-π-Phase-Shifted Distributed Feedback Fibre Lasers

FAN Wei;CHEN Bai;LI Xue-Chun;CHEN Lan-Rong;CHEN Shao-He;LIN Zun-Qi

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

Cite this article:

FAN Wei, CHEN Bai, LI Xue-Chun et al 2002 Chin. Phys. Lett. 19 1108-1111

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Abstract Distributed feedback (DFB) fibre lasers usually have two longitudinal modes symmetrically located at each side of the Bragg wavelength because they have the same lowest gain threshold. In order to obtain single longitudinal output, π-phase-shift, DFB fibre lasers were often adopted. However, we found that, even with no π-phase-shift, the single frequency output can be acquired from Yb³⁺-doped fibre DFB lasers. The polarization beat frequency was measured to be 366 MHz.

Keywords: 42.55.Wd 42.60.-v 42.81.Wg

Published: 01 August 2002

PACS:	42.55.Wd	(Fiber lasers)
	42.60.-v	(Laser optical systems: design and operation)
	42.81.Wg	(Other fiber-optical devices)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I8/01108

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	FAN Wei
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	LIN Zun-Qi

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