Title :
Tunable Active Harmonic Mode-Locking Yb-Doped Fiber Laser With All-Normal Dispersion
Author :
Wuyi Li ; Zuoshan Yin ; Jifang Qiu ; Jian Wu ; Jintong Lin
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
We report tunable active harmonic mode-locking of a dissipative soliton ytterbium-doped fiber laser based on a high-speed intensity modulator with all-normal-dispersion (ANDi) cavity. Adjusting the working frequency and the data length of radio driving signals for the dissipative soliton pulses shaping, the repetition rates can be facilely and accurately scalable from 20.33 to 609.84 MHz corresponding to the harmonic order from the fundamental rate to 30th, which is higher than the passive harmonic mode-locking (HML) fiber laser in an all-fiber and ANDi cavity. The cavity supermode-suppression ratio is suppressed up to 50 dB, and the signal-to-noise ratio is better than 57 dB at the 30th HML.
Keywords :
fibre lasers; intensity modulation; laser cavity resonators; laser mode locking; laser tuning; optical fibre dispersion; optical harmonic generation; optical modulation; optical pulse shaping; optical solitons; ytterbium; active harmonic mode-locking; all-normal dispersion cavity; cavity supermode-suppression ratio; data length; dissipative soliton; dissipative soliton pulses shaping; frequency 20.33 MHz to 609.84 MHz; high-speed intensity modulator; laser tuning; radio driving signals; repetition rates; working frequency; ytterbium-doped fiber laser; Erbium-doped fiber lasers; Harmonic analysis; Laser mode locking; Optical fiber dispersion; Optical fiber polarization; Solitons; Fiber lasers; all-normal-dispersion; dissipative soliton; harmonic mode-locked lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2283295
