Intense supercontinuum generation in a nanosecond nonlinear all-PM-fiber power amplifier

Chun Lin Chang, Yen Yin Lin, Po Yen Lai, Yen Yin Li, Dong Yo Jheng, Shih Hung Chen, Sheng Lung Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Intense nanosecond emission with spectral broadening from 980 to 1600 nm was generated with peak power up to 117 kW, close to the damage threshold of fiber fuse. Both laser amplification and nonlinear conversion were simultaneously employed in a fiber power amplifier giving power scaling free from significant depletion. In a diode-seeded all-PM-fiber master oscillation power amplifier system under all normal dispersion, a core-pumped preamplifier using double-pass scheme can significantly improve the energy extraction. This produced the pulse energy of 1.2 mJ and duration of 6 ns with a conversion efficiency of 66% at the moderate repetition of 20 kHz, which is consistent with the coupled laser rate equations including the stimulated Raman scattering. For the comparable nonlinear strength in each stage from single to few modes, the onset and interplay of four kinds of fiber nonlinearities can be addressed.

Original languageEnglish
Title of host publicationFiber Lasers XI
Subtitle of host publicationTechnology, Systems, and Applications
ISBN (Print)9780819498748
StatePublished - 2014
EventFiber Lasers XI: Technology, Systems, and Applications - San Francisco, CA, United States
Duration: 3 Feb 20146 Feb 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceFiber Lasers XI: Technology, Systems, and Applications
Country/TerritoryUnited States
CitySan Francisco, CA


  • Fiber laser amplifiers
  • Fiber nonlinear optics
  • Rare-earth-doped fibers
  • Supercontinuum generation


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