Grating enhanced external cavity diode laser
Grating enhanced external cavity diode laser
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光栅增强型外腔二极管激光器
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
K. Danzmann
中科院分区：
文献类型：
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作者：
A. Wicht;M. Rudolf;P. Huke;R. Rinkleff;K. Danzmann
我们描述了一个具有光反馈的二极管激光器的概念。它是基于两个不同的二极管激光概念的组合：二极管激光与(i)从光栅反馈和（ii）谐振光反馈从一个单独的腔。我们的工作目标是将光栅二极管激光器优异的可调谐性和众所周知的可靠性与具有谐振光反馈的二极管激光器的窄发射线宽结合起来。我们的理论描述表明，一个适当的腔设计是必不可少的这一概念。它还提供了优化腔体几何形状的方法。我们的装置基于ar涂层激光二极管，发射波长为852 nm。它实现了36.4 nm的整体调谐范围和45.1 GHz的连续调谐范围。用共振光反馈二极管激光器进行的拍音测量表明，短时间线宽低于60 kHz。纳米级的连续调谐范围和千赫级的线宽似乎是可行的。
We describe a concept for diode lasers with optical feedback. It is based on the combination of two different diode laser concepts: the diode laser with (i) feedback from a grating and (ii) resonant optical feedback from a separate cavity. The goal of our work is to unite the excellent tunability and well known reliability of grating diode lasers with the narrow emission linewidth of diode lasers with resonant optical feedback. Our theoretical description shows that a proper cavity design is essential for this concept. It also provides the means to optimize the cavity geometry. Our setup is based on an AR-coated laser diode emitting at 852 nm. It achieves an overall tuning range of 36.4 nm and a continuous tuning range of 45.1 GHz. A beat note measurement with a diode laser with resonant optical feedback demonstrates a short-term linewidth below 60 kHz. Continuous tuning ranges on the order of nanometers and linewidth on the order of kHz seem feasible.