title: 55-fs pulse generation without wave-breaking from an all-fiber Erbium-doped ring laser.
abstract: We demonstrate the direct generation of 55 fs pulses from an all-fiber Erbium-doped ring laser oscillator using the nonlinear polarization rotation mode-locking. The average output power is 56.4 mW but limited by available pump power of 330 mW. The linear chirped pulse duration is 55 fs after recompression using standard single-mode fiber. The pulses show to resist optical wave breaking with a smooth spectrum without any side lobe and cw-breakthrough. This all-fiber laser exhibits relatively high transfer efficiency of 17% and the single pulse energy reaches 1.5 nJ.
authors.affiliation: Department of Physics, State Key Lab of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Dinghuan
authors.initials: D
authors.lastname: Deng
authors.forename: Li
authors.initials: L
authors.lastname: Zhan
authors.forename: Zhaochang
authors.initials: Z
authors.lastname: Gu
authors.forename: Yi
authors.initials: Y
authors.lastname: Gu
authors.forename: Yuxing
authors.initials: Y
authors.lastname: Xia