Thermal tuning of a fiber-optic interferometer for maximum sensitivity

被引：35
|
作者：
Bruland, KJ [1 ]
Garbini, JL
Dougherty, WM
Chao, SH
Jensen, SE
Sidles, JA
机构：
[1] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
[2] Univ Washington, Dept Orthopaed, Seattle, WA 98195 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1999年 / 70卷 / 09期
关键词：
D O I：
10.1063/1.1149947
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We describe a fiber-optic interferometer that employs wavelength changes to achieve maximum sensitivity. Wavelength changes are induced by adjusting the operating temperature of the laser, eliminating the need for an actuator to vary the spacing between the sensing fiber and the object to be monitored. The instrument and techniques described are suitable for cryogenic, high vacuum applications such as magnetic resonance force microscopy, where space is limited and micromanipulation can be challenging. The noise floor of 1.6x10(-3) nm/root Hz is adequate for monitoring subangstrom displacement of force microscope cantilevers. (C) 1999 American Institute of Physics. [S0034-6748(99)00109-4].
引用
收藏
页码：3542 / 3544
页数：3
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