A simple switchable multiwavelength double-clad fiber laser using a multimode fiber Bragg grating (MMFG) as a wavelength selective component is demonstrated. The MMFG is fabricated directly in the active double-clad fiber, resulting in low splicing loss and compact configuration. By properly adjusting the polarization controller in the cavity, the double-clad fiber laser can stably operate at different multiwavelength states at room temperature. At lower pump levels, the laser can be switched between single- and dual-wavelength operations, while at higher pump levels the laser can switch between dual- and triple-wavelength operations. The slope efficiency of the system is 41% with the maximum output power of 6.2 W.
© 2007 Optical Society of AmericaFull Article | PDF Article
Yange Liu, Xinhuan Feng, Shuzhong Yuan, Guiyun Kai, and Xiaoyi Dong
Opt. Express 12(10) 2056-2061 (2004)
Xinhuan Feng, Yange Liu, Shuzhong Yuan, Guiyun Kai, Weigang Zhang, and Xiaoyi Dong
Opt. Express 12(16) 3834-3839 (2004)
Dae Seung Moon, Un-Chul Paek, and Youngjoo Chung
Opt. Express 12(25) 6147-6152 (2004)