Ultrashort Pulse Compression for Mode-Locked Ti:Sapphire Laser by Using a Tapered Fiber and Grating Pair

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题名:	Ultrashort Pulse Compression for Mode-Locked Ti:Sapphire Laser by Using a Tapered Fiber and Grating Pair
作者:	Lin,JH;Taso,CC;Hsu,KC;Lin,KH;Lai,YC
贡献者:	光電科學與工程學系
关键词:	MICROSTRUCTURE OPTICAL-FIBER;PHOTONIC CRYSTAL FIBER;SUPERCONTINUUM GENERATION;DISPERSION
日期:	2010
上传时间:	2012-03-27 18:15:23 (UTC+8)
出版者:	國立中央大學
摘要:	Extracavity pulse compression for pulses from an 82 MHz mode-locked Ti: sapphire laser is demonstrated by utilizing a tapered fiber of 1 mu m in diameter and 10 mm in length. Group velocity dispersion of the tapered fiber is calculated, which shows two zero dispersion wavelengths locating at 545 and 1250 nm, respectively. The nonlinear coefficient gamma of the tapered fiber is estimated to be 733 (W(-1) km(-1)) at 880 nm wavelength. With 80 fs input pulses at 880 nm center wavelength, the optical bandwidth is broadened beyond 22 THz by the tapered fiber. After dispersion compensation by a grating pair with 1.45 cm separation, 26 fs output pulses are obtained. One-third pulse compression ratio has been experimentally demonstrated in this work for center wavelengths ranging from 720 to 880 nm. (C) 2010 The Japan Society of Applied Physics
關聯:	JAPANESE JOURNAL OF APPLIED PHYSICS
显示于类别:	[光電科學與工程學系] 期刊論文

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