Title :
Efficient diode-pumped single-frequency erbium:ytterbium fiber laser
Author :
Kringlebotn, J.T. ; Morkel, P.R. ; Reekie, L. ; Archambault, J.-L. ; Payne, D.N.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
We report a 7.6-mW single-frequency fiber laser operating at 1545 nm, using for the first time an Er/sup 3+/:Yb/sup 3+/ doped fiber and a fiber grating output coupler. The laser did not exhibit self-pulsation, which is a typical problem in short three-level fiber lasers, and had a relative intensity noise (RIN) level below -145.5 dB/Hz at frequencies above 10 MHz. The linewidth of the laser was limited by the relaxation oscillation sidebands in the optical spectrum and was typically less than 1 MHz.<>
Keywords :
diffraction gratings; fibre lasers; laser frequency stability; noise; optical couplers; optical pumping; ytterbium; 1545 nm; 7.6 mW; Er/sup 3+/,Yb/sup 3+/ doped fiber laser; diode-pumped; erbium:ytterbium fiber laser; fiber grating output coupler; linewidth; optical spectrum; relative intensity noise; relaxation oscillation sidebands; single-frequency; Diodes; Erbium; Erbium-doped fiber lasers; Fiber gratings; Frequency; Laser noise; Noise level; Optical coupling; Optical fiber couplers; Optical noise;
Journal_Title :
Photonics Technology Letters, IEEE
