A stable dual-wavelength single-longitudinal-mode fiber laser with a tunable wavelength spacing based on a chirped phase-shifted grating filter

被引：0
|
作者：
Jiang, Meng [1 ]
Shum, Perry Ping [1 ]
Lin, Bo [1 ]
Tjin, Swee Chuan [1 ]
Jiang, Yang
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Dr, Singapore 637553, Singapore
来源：
PASSIVE COMPONENTS AND FIBER-BASED DEVICES VIII | 2011年 / 8307卷
关键词：
chirped phase-shifted grating; fiber ring laser; wavelength spacing tuning; single-longitudinal-mode; microwave generation; GENERATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A stable dual-wavelength with a tunable wavelength spacing fiber laser based on a chirped two phase-shifted grating filter is demonstrated. In the ring cavity, a chirped grating with two pi-phase shifts servers as an ultra-narrow dual-wavelength transmission band filter. The grating is attached in a triangular cantilever for chirp rate tuning. A semiconductor optical amplifier biased in low-gain regime is induced to reduce the gain competition of the two wavelengths caused by erbium-doped fiber. And a feedback fiber loop working as a mode filter guarantees the laser in a single-longitudinal-mode operation. Two lasing lines with different wavelength spacing from approximately 0.15 to 0.37 nm are experimentally demonstrated.
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页数：6
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