Spectrometer employing optical fiber time delays for frequency resolution
This invention provides different length glass fibers for a broad range of optical time delays for short incident chromatic light pulses for the selective spatial and frequency analysis of the light with a single light detector. The frequencies of the incident light are orientated and matched with the different length fibers by dispersing the separate frequencies in space according to the respective fiber locations and lengths at the input terminal of the glass fibers. This makes the different length fibers useful in the field of plasma physics. To this end the short light pulses can be scattered by a plasma and then passed through the fibers for analyzing and diagnosing the plasma while it varies rapidly with time.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4164373
- OSTI ID:
- 5345640
- Resource Relation:
- Patent File Date: Filed date 12 Jan 1978; Other Information: PAT-APPL-868,952
- Country of Publication:
- United States
- Language:
- English
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Spectrometer employing optical fiber time delays for frequency resolution
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
FIBER OPTICS
DELAY CIRCUITS
SPECTROMETERS
PLASMA DIAGNOSTICS
CALIBRATION
DESIGN
DIAGRAMS
LENGTH
PULSES
TIME MEASUREMENT
DIMENSIONS
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
440300* - Miscellaneous Instruments- (-1989)
700102 - Fusion Energy- Plasma Research- Diagnostics