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Femtosecond fiber-feedback optical parametric oscillator

机译:飞秒光纤反馈光参量振荡器

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We demonstrate what is to our knowledge the first synchronously pumped high-gain optical parametric oscillator (OPO) with feedback through a single-mode fiber. This device generates 2.3-2.7 W of signal power in 700-900-fs pulses tunable in a wavelength range from 1429 to 1473 nm. The necessary high gain was obtained from a periodically poled LiTaO3 crystal pumped with as much as 8.2 W of power at 1030 nm from a passively mode-locked Yb:YAG laser with 600-fs pulse duration and a 35-MKz repetition rate. The fiber-feedback OPO setup is compact because most of the resonator feedback path consists of a standard telecom fiber. Because of the high parametric gain, the fiber-feedback OPO is highly insensitive to intracavity losses. For the same reason, the synchronization of the cavity with the pump laser is not critical, so active stabilization of the cavity length is not required. (C) 2001 Optical Society of America. [References: 8]
机译:我们将展示我们所知的第一个通过单模光纤进行反馈的同步泵浦高增益光学参量振荡器(OPO)。该器件在700-900-fs的脉冲中产生2.3-2.7 W的信号功率,可调的波长范围是1429至1473 nm。从无源锁模Yb:YAG激光器以600 fs的脉冲持续时间和35 MKz的重复频率在1030 nm处泵浦的周期极化LiTaO3晶体在1030 nm处可获得高达8.2 W的功率,从而获得了必要的高增益。光纤反馈OPO设置紧凑,因为大多数谐振器反馈路径均由标准电信光纤组成。由于高的参数增益,光纤反馈OPO对腔内损耗高度不敏感。出于同样的原因,腔与泵浦激光器的同步并不是至关重要的,因此不需要主动稳定腔的长度。 (C)2001年美国眼镜学会。 [参考:8]

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