State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou, China.
Opt Lett. 2011 Sep 15;36(18):3708-10. doi: 10.1364/OL.36.003708.
A compact, low-noise, single-frequency fiber laser by using a newly developed Yb³⁺ heavily doped single-mode phosphate glass fiber has been demonstrated. Over 400 mW stable continuous wave single transverse and longitudinal mode laser at 1.06 μm was achieved from a 0.8 cm long active fiber. The measured slope efficiency and estimated quantum efficiency of laser emission are 72.7% and 93%, respectively. The signal-to-noise ratio is higher than 72 dB, and the linewidth of the fiber laser is less than 7 kHz, while the measured relative intensity noise is less than -130 dB/Hz at frequencies of over 1.5 MHz.
利用新开发的掺镱³⁺重掺杂单模磷酸盐玻璃光纤，实现了一种紧凑、低噪声、单频光纤激光器。从 0.8 厘米长的有源光纤中获得了超过 400mW 的稳定连续波单横模和单纵模激光，其斜率效率和量子效率分别为 72.7%和 93%。测量的信噪比大于 72dB，光纤激光器的线宽小于 7kHz，而在超过 1.5MHz 的频率下，测量的相对强度噪声小于-130dB/Hz。
