Title :
Measurement of Laser Linewidths and Coherence Lengths using a Frequency Counter
Author :
Cliche, Jean-François ; Têtu, Michel
Author_Institution :
DiCOS Technol. Inc.
Abstract :
We describe how the linewidth and coherence length of high purity lasers can be estimated using a frequency counter to replace an optical interferometer of variable length. We also show theoretically and experimentally how such measurements are affected by the finite measurement time
Keywords :
length measurement; light coherence; measurement by laser beam; coherence lengths; finite measurement time; frequency counter; laser linewidths; Counting circuits; Fiber lasers; Frequency estimation; Frequency measurement; Laser noise; Laser theory; Length measurement; Optical interferometry; Phase measurement; Time measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305541
