Title :
Channel-Spacing- and Wavelength-Tunable Multiwavelength Fiber Ring Laser Using Semiconductor Optical Amplifier
Author :
Roh, Sookyoung ; Chung, Seunghwan ; Lee, Yong Wook ; Yoon, Ilyong ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ.
Abstract :
We have demonstrated a channel-spacing- and wavelength-tunable multiwavelength fiber ring laser based on a semiconductor optical amplifier and a tunable comb filter. By employing the comb filter, multiwavelength operation of up to 23 laser lines with the signal-to-noise ratio over 25 dB and 0.8-nm wavelength spacing was demonstrated at room temperature. The results show that the multiwavelength operation is even and stable. Furthermore, the shift of lasing wavelength and wavelength spacing were continuously controllable in this system
Keywords :
channel spacing; comb filters; fibre lasers; laser tuning; optical communication equipment; ring lasers; semiconductor optical amplifiers; channel spacing; multiwavelength fiber ring laser; semiconductor optical amplifier; signal-to-noise ratio; tunable comb filter; wavelength tuning; Channel spacing; Fiber lasers; Optical fiber filters; Optical fiber polarization; Optical filters; Optical retarders; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers; Tunable circuits and devices; Multiwavelength laser; ring laser; semiconductor optical amplifier (SOA); tunable laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.885297
