標題: Highly efficient femtosecond pulse stretching by tailoring cavity dispersion in erbium fiber lasers with an intracavity short-pass edge filter
作者: Chen, Nan-Kuang
Liu, Feng-Zhou
Chuang, Hsiu-Po
Lai, Yinchieh
Yang, Shang-Da
Lin, Jim-Wein
Liaw, Shien-Kuei
Chang, Yu-Chung
Huang, Chen-Bin
Chi, Sien
光電工程學系
Department of Photonics
公開日期: 15-八月-2011
摘要: We demonstrate highly efficient pulse stretching in Er(3+)-doped femtosecond mode-locked fiber lasers by tailoring cavity dispersion using an intracavity short-pass edge filter. The cavity dispersion is preset at around zero to obtain the shortest pulsewidth. When the cutoff wavelength of the short-pass edge filter is thermo-optically tuned to overlap the constituting spectral components of mode-locked pulses, large negative waveguide dispersion is introduced by the steep cutoff slope and the total cavity dispersion is moved to normal dispersion regime to broaden the pulsewidth. The time-bandwidth product of the mode-locked pulse increases with the decreasing temperature at the optical liquid surrounding the short-pass edge filter. Pulse stretch ratio of 3.53 (623.8fs/176.8fs) can be efficiently achieved under a temperature variation of 4 degrees C. (C) 2011 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.19.015879
http://hdl.handle.net/11536/20278
ISSN: 1094-4087
DOI: 10.1364/OE.19.015879
期刊: OPTICS EXPRESS
Volume: 19
Issue: 17
起始頁: 15879
結束頁: 15884
顯示於類別:期刊論文


文件中的檔案:

  1. 000293894900024.pdf