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Dual-Wavelength DFB Fiber Laser Based on a Chirped Structure and the Equivalent Phase Shift Method

2006; Institute of Electrical and Electronics Engineers; Volume: 18; Issue: 18 Linguagem: Inglês

10.1109/lpt.2006.882282

1941-0174

Yutang Dai, Xiaohong Chen, Jingbo Sun, Yu Yao, Surui Xie,

Photonic and Optical Devices

A chirped phase-shifted structure is demonstrated for compact multiwavelength distributed feedback (DFB) fiber laser at room temperature for the first time. The chirped structure provides separated resonance cavities and then the stable multiwavelength operation. The equivalent phase shift method is demonstrated to realize the desired chirp and phase shifts simply and flexibly. A 44-pm-spaced dual-wavelength DFB fiber laser is then achieved experimentally, which is the narrowest spacing ever reported for a compact multiwavelength fiber laser