Title :
Ultra-low repetition rate linear-cavity erbium-doped fibre laser modelocked with semiconductor saturable absorber mirror
Author :
Chen, Luo-nan ; Zhang, M. ; Zhou, Changle ; Cai, Yong-fu ; Ren, Ling ; Zhang, Zhenhao
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing
Abstract :
Reported is an ultra-long linear-cavity erbium-doped fibre laser modelocked by a high modulation depth hybrid mirror-based semiconductor saturable absorber mirror with ultra-low repetition rate and highly-chirped output pulses of high energy. With a repetition rate of 250.7 kHz, the laser delivers the single pulse energy of 14 nJ at a pump power of 430 mW. The minimum achievable repetition rate was as low as 25.4 kHz.
Keywords :
chirp modulation; erbium; fibre lasers; laser cavity resonators; laser mode locking; mirrors; optical pulse generation; optical pumping; optical saturable absorption; JkJk:Er; energy 14 nJ; frequency 250.7 kHz; high modulation depth saturable absorber mirror; highly-chirped output pulses; hybrid mirror-based semiconductor saturable absorber mirror; laser modelocking; linear-cavity erbium-doped fibre laser; power 430 mW; pump power; single pulse energy; ultralow repetition rate fibre laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1112
