Divided-pulse nonlinear amplification and simultaneous compression

Journal Article · Mon Mar 09 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4914882· OSTI ID:22395689

Hao, Qiang; Zhang, Qingshan; Sun, Tingting; Chen, Jie; Wang, Yuqing; Guo, Zhengru; Yang, Kangwen ^[1]; Guo, Zhanhua ^[2]; Zeng, Heping ^[1]

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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)

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.

• OSTI ID: 22395689
• Journal Information: Applied Physics Letters, Vol. 106, Issue 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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