Single mode EDF fiber laser using an ultra-narrow bandwidth tunable optical filter

被引：16
|
作者：
Razak, N. F. [1 ]
Ahmad, H.
Zulkifli, M. Z. [2 ]
Muhammad, F. D. [2 ]
Munajat, Y. [1 ]
Harun, S. W. [2 ]
机构：
[1] Univ Technol Malaysia, Fac Sci, Adv Photon Sci Inst, Dept Phys, Skudai 81310, Johor, Malaysia
[2] Univ Malaya, Photon Res Ctr, Dept Phys, Kuala Lumpur 50603, Malaysia
来源：
OPTIK | 2015年 / 126卷 / 02期
关键词：
Single longitudinal mode (SLM); Ultra-narrow tunable filter; Delayed self-heterodyne method; RING LASER; OPERATION;
D O I：
10.1016/j.ijleo.2014.08.150
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Single longitudinal mode (SLM) erbium-doped fiber (EDF) laser operation using a commercialized ultra-narrow bandwidth optical filter has been demonstrated. A 2-m long EDF with an absorption coefficient of 24 dB m(-1) at the pump wavelength is used as gain medium. The ultra-narrow tunable filter is used for selection of a single longitudinal mode from the available spectrum of multiple modes, which originally exist in the FBG's reflection spectrum. Our approach provides a relatively simple and direct method for realization of SLM operation. A high-resolution optical spectral analyser with a resolution of 0.16 pm is used to observe the output spectrum. To verify the SLM operation, the delayed self-heterodyne method is used, giving a measured laser linewidth of 61.5 kHz. (C) 2014 Elsevier GmbH. All rights reserved.
引用
收藏
页码：179 / 183
页数：5
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