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oe1(光电查) - 科学论文

2 条数据
?? 中文（中国） ▾

  • 25 nJ, 634 ps and 1 MHz all-fiber passively mode-locked fiber laser based on a GaAs saturable absorber

    摘要： We demonstrate an all-fiber passively mode-locked Tm-Ho co-doped fiber laser based on a GaAs saturable absorber (SA) fiber laser at 1875.2 nm. With a 10% output coupler, the fiber laser outputs 1.13 MHz, 634 ps and 25 nJ pulses at 1875.2 nm with a 3 dB-bandwidth of 18.4 nm. The Q-switched mode-locking (QML), the mode-locking at fundamental repetition rate (FRR) and the mode-locking at second harmonic of repetition rate (SHRR) are also observed with the increase of the pump power. The main reason of the SHRR is soliton pulse energy quantization effect.

    关键词： Low repetition rate,Mode-locked fiber laser,Soliton pulse,Nanosecond pulse,Soliton pulse energy quantization effect

    更新于2025-11-28 14:24:03

  • All-fiber sub-20a??ps ultra low repetition rate high peak power mode-locked fiber laser to generate supercontinuum

    摘要： We report an ultra-low repetition rate self-started mode-locked fiber laser at 1.55 μm spectral region with a sub-20 ps pulse duration at repetition rate of less than 100 kHz leading to high energy and peak power pulses. A repetition rate of 13.8 kHz with the pulsewidth of 17 ps is then achieved and the issue of multiple pulses is mitigated in the linear cavity structure by proper selection of semiconductor saturable absorber and dispersion management in the cavity. A broad supercontinuum achieved using 7 m SM-ZBLAN fiber while pumping with mode-locked fiber laser with repetition rate, pulsewidth, pulse energy and peak power of 53 kHz, 12.5 ps, 16.6 μJ and 1.3 MW, respectively.

    关键词： mode-locked fibre laser,ultra low repetition rate,high peak power pulsed laser,ZBLAN single mode fiber (SMF),supercontinuum

    更新于2025-09-16 10:30:52