An all fiber self-Q-switched Er-Yb co-doped double-cladding fiber ring laser

作者：Wu Duan Duan; Luo Zheng Qian^*; Cai Zhi Ping; Xu Hui Ying

来源：Journal of Optoelectronics - Laser, 2014, 25(3): 460-464.

• Average output power
• Co-doped
• Double cladding fiber
• Erbium/ytterbium co-doped double-cladding fiber
• Repetition rate
• Self-Q-switched
• Signaltonoise ratio (SNR)
• Wavelength-selective elements

A compact self-Q-switched erbium/ytterbium co-doped double-cladding fiber (EYDF) ring laser is demonstrated. Using an EYDF as both the gain fiber and saturable absorber, a fiber Bragg grating (FBG) as the wavelength-selective element, the laser can operate at the status of stable self-Q-switching with the central wavelength of 1539.80 nm and narrow linewidth of 0.07 nm. The self-Q-switching operation can keep in a wide pump power range from 376 mW to 1208 mW. As the pump power increasing, the pulse repetition rate can be continuously tuned from 7.40 kHz to 64.2 kHz. When the pump power reaches 1208 mW, the largest pulse repetition rate of 64.2 kHz can be achieved. The largest average output power of 81.3 mW is obtained from the 90% port of the optic coupler. The shortest pulse duration and the largest single pulse energy of the Q-switched laser are 1.8 μs and 1.65 μJ, respectively. The self-Q-switching operation is stable with the radio-frequency signal-to-noise ratio (SNR) of more than 60 dB.

• 出版日期2014
• 单位厦门大学