Title :
Bidirectional single-mode Er-doped fiber-ring laser
Author :
Kiyan, Roman ; Seung Kwan Kim ; Kim, Byoung Yoon
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
A Faraday rotator is used in a laser cavity to eliminate spatial hole burning in a bidirectional Er-doped fiber-ring laser. A stable operation is achieved in single longitudinal mode with comparable intensities for both clockwise and counter-clockwise directions. A beat signal between the clockwise and the counter-clockwise laser outputs of 40 dB above noise and of about 30% fringe visibility is observed.
Keywords :
Faraday effect; erbium; fibre lasers; laser accessories; laser beams; laser cavity resonators; laser modes; laser noise; magneto-optical devices; nonlinear optics; optical hole burning; ring lasers; Er-doped fiber-ring laser; Faraday rotator; beat signal; bidirectional single-mode fiber-ring laser; clockwise direction; counter-clockwise direction; fringe visibility; intensities; laser cavity; laser outputs; noise; single longitudinal mode; spatial hole burning; stable operation; Clocks; Fiber lasers; Frequency; Laser mode locking; Laser modes; Laser noise; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Ring lasers;
Journal_Title :
Photonics Technology Letters, IEEE
