Fiber optic geophysical sensors

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867746

Homuth, Emil F ^[1]

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1. Los Alamos, NM

A fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5001337
• OSTI ID: 867746
• Country of Publication: United States
• Language: English

Related Subjects

fiber
optic
geophysical
sensors
sensor
laser
light
passed
interferometer
contact
event
reference
environment
embodiment
single
tunable
provides
separate
lasers
interferometers
monitoring
earthquakes
weighing
tunable lasers
fiber optic
laser light
tunable laser
single tunable
optic geophysical
geophysical event
/250/356/