Departamento de Física Aplicada y Electromagnetismo, ICMUV, Universidad de Valencia, C/Dr. Moliner 50, Burjassot 46100, Valencia, Spain.
Opt Lett. 2010 Nov 15;35(22):3781-3. doi: 10.1364/OL.35.003781.
We report an actively mode-locked fiber ring laser. A simple and low-insertion-loss acousto-optic modulator driven by standing flexural waves, which couples core-to-cladding modes in a standard single-mode optical fiber, is used as an active mechanism for mode locking. Among the remarkable features of the modulator, we mention its high modulation depth (72%), broad bandwidth (187 GHz), easy tunability in the optical wavelength, and low insertion losses (0.7 dB). The narrowest optical pulses obtained were of 95 ps time width, 21 mW peak power, repetition rate of 4.758 MHz, and 110 mW of pump power.
我们报告了一种主动锁模光纤环形激光器。采用基于驻波弯曲波驱动的简单低插入损耗声光调制器，该调制器将标准单模光纤中的纤芯模式与包层模式耦合，用作锁模的主动机制。在调制器的显著特点中，我们提到了其高调制深度（72%）、宽带宽（187GHz）、在光波长方面易于调谐以及低插入损耗（0.7dB）。获得的最窄光脉冲的时间宽度为 95ps，峰值功率为 21mW，重复率为 4.758MHz，泵浦功率为 110mW。
