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Optical Engineering

Investigation of a multiwavelength erbium-doped fiber laser employing a nonlinear high-birefringence fiber loop mirror
Author(s): Xinhuan Feng; Ping-Kong A. Wai; Chao Lu; Hwa-Yaw Tam; Jie Li; Bai-Ou Guan
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Paper Abstract

A room-temperature multiwavelength erbium-doped fiber laser (EDFL) based on a nonlinear high-birefringence fiber loop mirror (HiBi-FLM) is proposed and demonstrated. The nonlinear HiBi-FLM can induce not only wavelength-dependent loss (WDL) but also intensity-dependent loss (IDL). WDL and IDL can effectively suppress the mode competition caused by homogeneous gain broadening of the erbium-doped fiber (EDF), and ensure stable and uniform power distribution over wavelengths. As a result, up to 50-wavelength lasing operations with wavelength spacing of 0.8 nm, and more than 100-wavelength operations with wavelength spacing of 0.14 nm are achieved. The power distribution over the wavelengths is uniform, and the power fluctuation in each wavelength is smaller than 0.2 dB.

Paper Details

Date Published: 1 July 2010
PDF: 6 pages
Opt. Eng. 49(7) 074202 doi: 10.1117/1.3467472
Published in: Optical Engineering Volume 49, Issue 7
Show Author Affiliations
Xinhuan Feng, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Ping-Kong A. Wai, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Chao Lu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Jie Li, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)


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