Zappe H P, Hess M, Moser M, Hövel R, Gulden K, Gauggel H P, Monti di Sopra F
Appl Opt. 2000 May 20;39(15):2475-9. doi: 10.1364/ao.39.002475.
The use of vertical-cavity surface-emitting lasers (VCSEL's) for optical detection of atmospheric oxygen is described. The VCSEL's were custom designed for single-mode emission in the 763-nm wavelength range, with low noise and narrow optical linewidth. Using standard wavelength modulation spectroscopy and a second-harmonic detection scheme with a 1-m air path, we determined an oxygen concentration resolution of 0.2%. Because of its small size, low power dissipation, and good tunability characteristics, the VCSEL promises to be an attractive light source for use in compact, low-cost optical sensor microsystems for trace gas detection.
描述了使用垂直腔面发射激光器（VCSEL）进行大气氧气的光学检测。这些VCSEL专为在763纳米波长范围内的单模发射而定制设计，具有低噪声和窄光学线宽。使用标准波长调制光谱和带有1米空气路径的二次谐波检测方案，我们确定了0.2%的氧气浓度分辨率。由于其尺寸小、功耗低以及良好的可调谐特性，VCSEL有望成为用于紧凑型、低成本光学传感器微系统中痕量气体检测的有吸引力的光源。
