Generation of 25-fs High Energy Pulses by SPM-Induced Spectral Broadening in a Photonic Crystal Fiber Laser System

We demonstrate 25-fs laser pulse generation from a photonic crystal fiber (PCF) laser system, which consists of a high energy all normal dispersion mode-locked oscillator based on an ytterbium-doped large mode area PCF and a passive PCF-based grating-pair compressor. The oscillator directly delivers...

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Bibliographic Details
Published in:IEEE photonics technology letters 2012-04, Vol.24 (7), p.551-553
Main Authors: Xie, Chen, Hu, Ming-Lie, Zhang, Da-Peng, Gu, Cheng-Lin, Song, You-Jian, Chai, Lu, Wang, Ching-Yue
Format: Article
Language:English
Subjects:
Dispersion
Femtosecond pulse
Fiber lasers
Laser mode locking
Optimized production technology
Oscillators
photonic crystal fiber (PCF)
Photonic crystal fibers
Power lasers
pulse compression
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Summary:We demonstrate 25-fs laser pulse generation from a photonic crystal fiber (PCF) laser system, which consists of a high energy all normal dispersion mode-locked oscillator based on an ytterbium-doped large mode area PCF and a passive PCF-based grating-pair compressor. The oscillator directly delivers 314-nJ highly-chirped pulses with a duration of 1.32 ps at a repetition rate of 15.58 MHz, which can be dechirped to 75 fs, corresponding to a peak power of 3 MW. The output laser pulses from the oscillator are directly injected to a piece of passive PCF for spectral broadening and dechirped by a transmission grating pair compressor, which results in a short pulse duration of 25 fs with 1-W average power.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2012.2183343