Title :
Wavelength-switchable single-frequency erbium-doped fiber ring laser
Author :
Liegeois, Flavien ; Hernandez, Yves ; Kinet, Damien ; Peigné, Guillaume ; Giannone, Domenico
Author_Institution :
Faculte Polytechnique de Mons, Belgium
Abstract :
We demonstrate a single-frequency and wavelength-switchable fiber ring laser obtained by a Lyot filter used in combination with a sampled fiber Bragg grating and a saturable absorber. The operating wavelength of the laser can be tuned, with a constant 0.8-nm step, in the range 1552.6-1555.8 nm. The tuning mechanism works on the rotation of the polarization of Lyot filter input signal. The structure of the laser is very simple regarding its characteristics: an output power of 6 dBm, with a signal-to-noise ratio higher than 60 dB and a spectral linewidth of 8 kHz.
Keywords :
Bragg gratings; erbium; fibre lasers; laser cavity resonators; laser tuning; optical fibres; optical filters; optical saturable absorption; ring lasers; spectral line breadth; 1552.6 to 1555.8 nm; Lyot filter; erbium-doped laser; fiber laser; laser wavelength tuning; ring laser; sampled Bragg grating; saturable absorber; signal-to-noise ratio; single-frequency laser; spectral linewidth; wavelength-switchable laser; Bragg gratings; Erbium-doped fiber lasers; Fiber gratings; Filters; Gas lasers; Laser tuning; Optical fiber polarization; Optical fiber sensors; Optical fiber testing; Ring lasers; Fiber ring laser; Lyot filter; sampled fiber Bragg grating (SFBG); single-frequency; switchable laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.859151
