A SIMPLE FREQUENCY LOCK OF GREEN YAG LASER TO DOPPLER-BROADENED SPECTRUM OF IODINE MOLECULES UTILIZING AN ACOUSTOOPTIC FREQUENCY SHIFTER

Authors
YOKOYAMA S YOKOYAMA T ARAKI T HAYASHI T SUZUKI N
Citation
S. Yokoyama et al., A SIMPLE FREQUENCY LOCK OF GREEN YAG LASER TO DOPPLER-BROADENED SPECTRUM OF IODINE MOLECULES UTILIZING AN ACOUSTOOPTIC FREQUENCY SHIFTER, Measurement science & technology, 9(8), 1998, pp. 1252-1258
Citations number
5
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
9
Issue
8
Year of publication
1998
Pages
1252 - 1258
Database
ISI
SICI code
0957-0233(1998)9:8<1252:ASFLOG>2.0.ZU;2-N
Abstract
A simple frequency stabilization method for frequency-doubled output ( 532 nm) of an Nd:YAG laser is described. The frequency shift caused by an acousto-optic modulator is effectively applied to stabilize the la ser frequency. For the frequency stabilization, there are two kinds of error signal: (1) the first-derivative of absorption of iodine molecu les and (2) the first-derivative of dispersion were extracted to exami ne which signal is suitable for the actual stabilization of the laser frequency. Based on this examination, the stabilization was executed u tilizing the error signal (1), resulting in a frequency instability of 2.4 x 10(-8).