Frequency control of a CO(2) laser using stark cell stabilization
Authors
Brown, Daniel Morris
Subjects
Laser
Stabilization
Stark
Stabilization
Stark
Advisors
Cooper, A.W.
Date of Issue
1979-06
Date
Publisher
Monterey, California : Naval Postgraduate School
Language
en_US
Abstract
Preliminary studies have been carried out for the
frequency and intensity stabilization of the output of a
Sylvania Model 941 Carbon Dioxide laser, by feedback
control of resonator length. Fluctuations due to discharge
current and temperature and flow rate of coolant were
studied. Current regulation of the power supply was found
to be necessary for intensity stability. Cavity length
tuning allowed vibration-rotation line selection, with a
strong hysteresis effect. A computer analysis of error
signal production for a pyroelectric detector and for a
HgCdTe detector indicated that phase sensitive detection
of the first harmonic signal component gave the typical
frequency discriminant. Operation of a servo loop integrator
for the feedback loop has been considered. A suitable Stark
Effect absorption cell for feedback signal generation has
been constructed, but has not been applied to the laser.
Type
Thesis
Description
Series/Report No
Department
Physics
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.