In:
Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 303-306 ( 2013-2), p. 843-846
Abstract:
A new implementation of frequency shifting for the delayed self-heterodyne interferometer (DSHI) is proposed in this paper. In order to avoid the costly and complicated acoustic-optic modulator to shift frequency in the DSHI, we propose that a phase modulator can be used instead. The alternative strategy simplifies the complexity of the DSHI setup, as well as reduces the modulation-induced noise by modulating the two arms of DSHI at the same time. Theoretical and experimental analysis show that such a strategy successfully fulfills the frequency shifting function for the DSHI and accurate measurement of a laser’s linewidth and lineshape is realized correspondingly.
Type of Medium:
Online Resource
ISSN:
1662-7482
DOI:
10.4028/www.scientific.net/AMM.303-306
DOI:
10.4028/www.scientific.net/AMM.303-306.843
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2251882-4
