Extended Continuous Tuning of a Single-Frequency Diode-Pumped Vertical-External-Cavity Surface-Emitting Laser at 2.3 $\mu$m
Extended Continuous Tuning of a Single-Frequency Diode-Pumped Vertical-External-Cavity Surface-Emitting Laser at 2.3 $\mu$m
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DOI：
10.1109/lpt.2008.2005504
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发表时间：
2008-12
影响因子：
2.6
通讯作者：
M. Triki;P. Čermák;L. Cerutti;A. Garnache;D. Romanini
中科院分区：
文献类型：
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作者：
M. Triki;P. Čermák;L. Cerutti;A. Garnache;D. Romanini
我们报告单频操作和宽模式跳自由调谐范围的二极管激光泵浦的垂直外腔面发射半导体激光器产生高达3毫瓦约2.3妈妈。一个光学稳定的外腔只有1.4毫米，形成使用凹面介质镜的2毫米半径。最大连续调谐约为500 GHz宽，通过外腔长度和增益介质温度的同步斜坡获得。我们使用该可调谐源记录甲烷的直接吸收光谱，发现其与来自HITRAN（高分辨率透射分子吸收数据库http：//www.cfa.harvard.edu/hitran）数据库的模拟光谱很好地匹配。
We report on single-frequency operation and wide mode-hop-free tuning range of a diode laser-pumped vertical-external-cavity surface-emitting semiconductor laser producing up to 3 mW around 2.3 mum. An optically stable external cavity of only 1.4 mm is formed using a concave dielectric mirror of 2-mm radius. The maximum continuous tuning is about 500 GHz wide, obtained by a synchronized ramp of external cavity length and of the gain medium temperature. We used this tunable source to record a direct absorption spectrum of methane, which is found to match well a simulated spectrum from the HITRAN (high-resolution transmission molecular absorption database http://www.cfa.harvard.edu/hitran) database.