We report on an all-fiber, actively mode-locked, tunable, Thulium-doped, fiber laser based on a 20-GHz bandwidth electro-optic intensity modulator (EOM) and a voltage driven 2-μm, intra-cavity, fiber-coupled, Fabry-Perot tunable filter (FFP-TF). The repetition rate of output pulses was 47 MHz and the shortest measured output pulse width was 445 ps. A continuous tuning range of 88 nm has been achieved from 1954 to 2042 nm with a spectral linewidth ≤0.14 nm and an optical signal-to-noise ratio <55 dB. The fiber laser offers an amplitude stability of ±0.2 dB and a wavelength stability of ±0.02 nm over 2 hours.
Wenyan Tian and Eric D. Park, "Mode-locked tunable thulium-doped fiber laser," Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830F (Presented at SPIE LASE: January 30, 2017; Published: 22 February 2017); https://doi.org/10.1117/12.2249923.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon