Electronically tuned Ti:sapphire laser for optical sensing
Electronically tuned Ti:sapphire laser for optical sensing
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用于光学传感的电子调谐钛宝石激光器
DOI：
10.1117/12.450169
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
H. Tashiro
中科院分区：
文献类型：
--
作者：
N. Saito;S. Wada;H. Sato;H. Tashiro
本文介绍了用于光谱应用的带声光可调谐滤波器的电调谐钛宝石激光器的各种进展。其主要进展是在690-1056 nm的调谐范围内，无需对腔体作任何机械改变，通过计算机控制，可实现快速随机存取调谐。访问速度达到250微秒。钛宝石激光器还提供了可调谐的双波长操作在一个单一的激光腔，同时引入两个不同的射频。该操作有望作为差频发电的泵源。在相位匹配角为58 °、53 °和46 °时，利用双波长激光器分别实现了6.0 ~ 7.1微米、6.8 ~ 8.6微米和8.5 ~ 11.3微米的非机械调谐差频产生。此外，声光可调谐滤波器的电子调谐仅需计算机控制即可实现宽调谐皮秒脉冲的产生。
A variety of progress concerned with an electronically tuned Ti:sapphire laser with an acousto-optic tunable filter for the purpose of spectroscopic applications are described. The major advances are that fast and random access tuning can be achieved in a tuning range of 690-1056 nm by computer control without any mechanical changes of cavity. The access speed reached to 250 microsecond(s) . The Ti:sapphire laser also provided tunable dual-wavelength operation in a single laser cavity with introducing two different radio frequencies at same time. The operation was promising as a pumping source of difference-frequency generation. Difference-frequency generation of non-mechanical tuning was realized from 6.0 to 7.1 micrometers , from 6.8 to 8.6 micrometers , and from 8.5 to 11.3 micrometers for the phase-matching angle at 58, 53, and 46 deg, respectively, using the dual-wavelength laser. Furthermore, the electronic tuning by acousto-optic tunable filter achieved broad tunable picosecond pulse generation with only computer control.