Title :
Actively Mode-locked Multiwavelength Fibre Ring Laser Incorporating a Lyot Filter, Hybrid Gain Medium and Birefringence Compensated LiNbO3 Modulator
Author :
O´Riordan, Colm ; Connelly, Michael J. ; Evans, Ivan ; Anandarajah, Prince M. ; Maher, Robert ; Barry, Liam P.
Author_Institution :
Univ. of Limerick, Limerick
Abstract :
A lyot filter based actively mode-locked multiwavelength fibre ring laser with a hybrid gain medium, consisting of an SOA and EDFA, is presented. Simultaneous mode-locking of up to 8 wavelength channels at 10 GHz is realised using a LiNbO3 based Mach-Zehnder intensity modulator. A wavelength channel spacing of 100 GHz is obtained via appropriate tuning of the Lyot filter length. The effect of modulator birefringence on the performance of the laser spectrum is investigated and a simple method to increase spectral stability is proposed and demonstrated.
Keywords :
birefringence; fibre lasers; laser mode locking; lithium compounds; nickel compounds; optical filters; LiNbO3; Lyot filter; Mach-Zehnder intensity modulator; birefringence; laser mode-locking; multiwavelength fibre ring laser; spectral stability; Birefringence; Erbium-doped fiber amplifier; Fiber lasers; Filters; Intensity modulation; Laser mode locking; Laser stability; Laser tuning; Ring lasers; Semiconductor optical amplifiers; Lyot filter; birefringence; hybrid gain medium; mode-locking; multiwavelength fibre ring laser;
Conference_Titel :
Transparent Optical Networks, 2007. ICTON '07. 9th International Conference on
Conference_Location :
Rome
Print_ISBN :
1-4244-1249-8
Electronic_ISBN :
1-4244-1249-8
DOI :
10.1109/ICTON.2007.4296391
