Abstract

We report, for the first time to our knowledge, an all-fiber wavelength-swept Tm-doped laser based on a fiber Fabry–Perot tunable filter in the 2μm spectral region. The laser wavelength can be continuously tuned over 200nm from 1840 to 2040nm in a short period of time. The demonstrated tuning speed was 12.5μm/s with a tuning efficiency of 17.5nm/V. The spectral linewidth of the laser was measured to be approximately 300MHz or 0.01cm1. This kind of laser can find potential applications in both high-resolution laser spectroscopy and tunable mid-IR generation via nonlinear frequency conversion.

© 2011 Optical Society of America

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