摘要
分析了利用非线性偏振旋转效应进行被动锁模的原理,并利用该方法搭建了σ形腔自起振被动锁模掺铒光纤激光器。实验稳定输出重复频率6.25MHz,脉冲宽度,691.2fs,中心波长1561.5nm,谱宽21.7nm的被动锁模脉冲。
Experimentally a novel sigma-cavity self-starting passively mode-locked erbium-doped fiber laser was set up. Stable pulses at the repetition of 6. 25 MHz with 691.2 fs pulse width were generated. The spectrum bandwidth of the fiber laser at center wavelength of 1 561.5 nm was about 21.7 nm.
出处
《科学技术与工程》
2007年第7期1316-1319,共4页
Science Technology and Engineering
基金
国家自然科学基金(No.60477022,60507001)
天津市科技发展基金(No.06YFGPGX08500)
光电信息技术科学教育部重点实验室(天津大学,南开大学)2005开放课题(No.2005-28)资助
关键词
被动锁模
自起振
非线性偏振旋转效应
飞秒脉冲
passively mode-locking self-starting nonlinear polarization rotation femtosecond pulse
