Title :
Alternate Wavelength Switching in a Widely Tunable Dual-Wavelength Tm
-Doped Fiber Laser at 1900 nm
Author :
Chenglai Jia ; Xun Liang ; Rochette, Martin ; Chen, Lawrence R.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montréal, QC, Canada
Abstract :
We demonstrate alternate wavelength switching in a widely tunable, dual-wavelength Tm3+-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 single- and dual-wavelength output, as well as tunable operation over a range of 70 nm, is obtained.
Keywords :
birefringence; fibre lasers; laser cavity resonators; laser tuning; optical fibre filters; optical fibre polarisation; thulium; Sagnac loop; Tm3+-doped fiber laser; alternate wavelength switching; comb filter; high-birefringence fiber; laser cavity; polarization controller; sequential switching; wavelength 1900 nm; widely tunable dual-wavelength; Cavity resonators; Fiber lasers; Measurement by laser beam; Optical fiber amplifiers; Optical fiber polarization; Sagnac interferometers; Tuning; Multi-wavelength fiber lasers; Thulium-doped fiber lasers;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2451654