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Title: Divided-pulse nonlinear amplification and simultaneous compression

We report on a fiber laser system delivering 122 fs pulse duration and 600 mW average power at 1560 nm by the interplay between divided pulse amplification and nonlinear pulse compression. A small-core double-clad erbium-doped fiber with anomalous dispersion carries out the pulse amplification and simultaneously compresses the laser pulses such that a separate compressor is no longer necessary. A numeric simulation reveals the existence of an optimum fiber length for producing transform-limited pulses. Furthermore, frequency doubling to 780 nm with 240 mW average power and 98 fs pulse duration is achieved by using a periodically poled lithium niobate crystal at room temperature.
Authors:
; ; ; ; ; ;  [1] ;  [2] ;  [1] ;  [3]
  1. Shanghai Key Laboratory of Modern Optical System, and Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093 (China)
  2. Shanghai Langyan Optoelectronic Science and Technology Co., LTD, Shanghai 200433 (China)
  3. (China)
Publication Date:
OSTI Identifier:
22395689
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLIFICATION; COMPRESSION; COMPRESSORS; CRYSTALS; DOPED MATERIALS; ERBIUM COMPOUNDS; LASER RADIATION; LITHIUM COMPOUNDS; NIOBATES; NONLINEAR PROBLEMS; PERIODICITY; TEMPERATURE RANGE 0273-0400 K