A diode-pumped, broadly tunable, single frequency erbiumdoped fibre ring laser is reported. Tuning and single longitudinal mode selection are accomplished by use of two fibre Fabry-Perot etalons. The threshold for 1.48-mu-m pumping is 8.8 mW and the slope efficiency is 11.5%. The laser can be tuned to wavelengths between 1.530 and 1.575-mu-m and operates singlemode throughout this range. Its linewidth is measured at 1.56-mu-m to be less than 5.5 kHz.
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Univ Ljubljana, Dept Phys, Opt Quant Lab, Ljubljana 1000, Slovenia
Fotona DD, Ljubljana 1210, SloveniaUniv Ljubljana, Dept Phys, Opt Quant Lab, Ljubljana 1000, Slovenia
Gorjan, Martin
Marincek, Marko
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机构:
Fotona DD, Ljubljana 1210, Slovenia
Jozef Stefan Inst, Dept Complex Matter, Ljubljana 1000, SloveniaUniv Ljubljana, Dept Phys, Opt Quant Lab, Ljubljana 1000, Slovenia
Marincek, Marko
Copic, Martin
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Univ Ljubljana, Dept Phys, Opt Quant Lab, Ljubljana 1000, Slovenia
Jozef Stefan Inst, Dept Complex Matter, Ljubljana 1000, SloveniaUniv Ljubljana, Dept Phys, Opt Quant Lab, Ljubljana 1000, Slovenia