Measurement of Microtremor by Using a 50m Fabry Perot Interferometer
نویسندگان
چکیده
منابع مشابه
Fabry - Perot Interferometer
This short lecture note recalls some of the properties of Fabry-Perot interferome-ters. As an addition to textbooks , it may present some help to students working with such instruments.
متن کاملFabry - Perot Interferometer Prototype
A new Fabry-Perot Interferometer has been developed for the ADAHELI ADvanced Astronomy for HELIophysics solar satellite mission at the “Tor Vergata” University Solar Physics Laboratory. Fabry-Perot narrow filters are of great interest for the study of extended astronomical sources, such as the solar photosphere and chromosphere. The prototype instrument provides a high throughput that allows fo...
متن کاملNovel Optical Design of Folded Fabry-perot Displacement Measurement Interferometer
Due to its high resolution and the large measuring range, laser interferometer has been applied widely to the precision industrial measurement and calibration. Fabry-Perot interferometry was often used for the microdisplacement, because of its common optical path structure being insensitive to the environmental disturbances. In the past researches, some kinds of modified Fabry-Perot interferome...
متن کاملMeasurement Technique Using a Fabry-Perot Cavity
A high precision measurement technique for characterizing the propagation loss in silica low-loss optical waveguides, based on measuring the contrast of a Fabry-Perot cavity, is demonstrated. The cavity consists of the waveguide coupled to two polarization-maintaining fibers, each end facet coated with dielectric mirrors, leaving the reflectivity as an adjustable parameter. The contrast is meas...
متن کاملExtrinsic Fabry-Perot interferometer fiber-optic microphone
In this paper we describe a new fiber-optic microphone developed as a passive acoustic sensor for traffic monitoring and vehicle classification. It is based on a fiber-optic extrinsic Fabry–Perot (FP) microinterferometer coupled to an external membrane for modulating the FP cavity length and a low coherent superluminescent diode as light source. The frequency characteristic as compared with a s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 1981
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.9.278