Alternate Wavelength Switching in a Widely Tunable Dual-Wavelength Tm3þ-Doped Fiber Laser at 1900 nm
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چکیده
We demonstrate alternate wavelength switching in a widely tunable, dualwavelength Tm3þ-doped fiber laser operating at 1900 nm. A comb filter based on a Sagnac loop incorporating a length of high-birefringence fiber is used to define the lasing wavelengths. By simple variation of a polarization controller within the laser cavity, alternate and sequential switching between singleand dual-wavelength output, as well as tunable operation over a range of 70 nm, is obtained.
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تاریخ انتشار 2016