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首页> 外文会议>Conference on Integrated Optics: Devices, Materials, and Technologies Ⅵ Jan 21-23, 2002 San Jose, USA >Extremely Short External Cavity Lasers: The Use of Wavelength Tuning Effects in Near Field Sensing
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Extremely Short External Cavity Lasers: The Use of Wavelength Tuning Effects in Near Field Sensing

机译：极短的外部腔激光器：在近场传感中使用波长调谐效应

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摘要

An adjustable extremely short external cavity (ESEC; cavity length 0...50 microns) can be used to tune the wavelength of an edge emitting Fabry-Perot semiconductor laser up to two percents. This means about 30 nm tuning range for the 1550-nm lasers and about 15 nm tuning range for the 800-nm lasers. In addition to the use in WDM and other tunable laser applications, this phenomenon can be directly used in realizing wavelength tuning sensitive near field sensors. In this paper, we discuss the ESEC laser tuning mechanism by using various numerical models and experimentation. We show simulations and experimental results for two different wavelength tuning schemes: a single mirror tuning, and tuning by using a micromachined Fabry Perot interferometer. In addition, we discuss and show results on wavelength tuning enhanced readout in near field optical data storage, and on near field surface profilometry via laser wavelength tuning.
机译：可调极短的外部腔体（ESEC；腔体长度为0 ... 50微米）可用于将边缘发射的Fabry-Perot半导体激光器的波长调谐至2％。这意味着1550 nm激光器的调谐范围约为30 nm，800 nm激光器的调谐范围约为15 nm。除了在WDM和其他可调激光器应用中使用之外，这种现象还可以直接用于实现对波长调谐敏感的近场传感器。在本文中，我们通过使用各种数值模型和实验来讨论ESEC激光调谐机制。我们展示了两种不同波长调谐方案的仿真和实验结果：单镜反射调谐，以及使用微加工的Fabry Perot干涉仪进行的调谐。此外，我们讨论并显示了有关在近场光学数据存储中进行波长调整增强读数以及通过激光波长进行近场表面轮廓测量的结果。

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