TUNABLE DIODE-LASER FREQUENCY-MODULATION SPECTROSCOPY THROUGH AN OPTICAL FIBER - HIGH-SENSITIVITY DETECTION OF WATER-VAPOR

被引：40

作者：

CARLISLE, CB ^{[1
]}

COOPER, DE ^{[1
]}

机构：

[1] SRI INT,MENLO PK,CA 94025

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 09期

关键词：

D O I：

10.1063/1.102669

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Frequency modulation spectroscopy through a single-mode optical fiber has been demonstrated for monitoring H2O vapor at 7665 cm-1. Using a 2.5 mW distributed feedback laser and 100 m of optical fiber, a minimum detectable absorption of 5×10-7 was achieved. To obtain this sensitivity limit, very large spurious signals and technical noise were suppressed using a dual-channel detection scheme.

引用

页码：805 / 807

页数：3

共 14 条

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