Effects of scanning speed on the laser beam profile measurements by vibrating wire

Citation data:

Journal of Contemporary Physics (Armenian Academy of Sciences), ISSN: 1068-3372, Vol: 52, Issue: 4, Page: 366-374

Publication Year:
2017
Citations 1
Citation Indexes 1
Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/23162
DOI:
10.3103/s1068337217040090
Author(s):
Arutunian, S.G.; Harutynyan G.S.; Choe, Dongnyung; Chung, Moses; Lazareva, E.G.; Margaryan, A.V.
Publisher(s):
Allerton Press; ALLERTON PRESS INC
Tags:
Physics and Astronomy; vibrating wire monitor; laser beam; oscillation frequency
article description
For measuring laser beam profiles, a vibrating wire monitor (VWM) has been introduced. The measurements were carried out at different speeds of scan. Preliminary estimates were made for the calculation of the VWM response times with respect to the thermal losses along the wire, and radiative and convective losses. These estimates, however, do not determine the difference between the beam profile and the frequency response of the VWM for a given scan rate. To evaluate the reliability of the frequency response of the VWM, comparisons between forward and reverse beam scans at different speeds have been used. The results of these scans are used to correct the thermal inertia in the frequency response of the VWM.