TY - GEN
T1 - A kind of wavefront curvature sensor with diffraction grating and application
AU - Shen, Hongbin
AU - Li, Gang
AU - Huang, Fuyu
AU - Liu, Jie
AU - Wang, Yuanbo
PY - 2009
Y1 - 2009
N2 - The basic principle of wavefront curvature sensor(WFS) is described, and the strongpoints and shortcomings of traditional schemes are analyzed. As a novel WFS, the wavefront curvature sensor comprising a diffraction grating(DGWFS), which consist a defocus grating and lens, and can measure the light intensity distribution at the two defocused spots simultaneity , has the advantage of realization easily, adjustment expediently, low cost, and so on. The DGWFS has a wide application in astronomy, measurement, laser, optical component testing etc. Its principle is analyzed. Two kinds of phase retrieval arithmetics of wavefront curvature sensor are analyzed by comparison. Besides, the latest applications of wavefront curvature sensor are generally presented. Finally a novel method for measurement on solid-state laser thermal lens utilizing DGWFS is presented.
AB - The basic principle of wavefront curvature sensor(WFS) is described, and the strongpoints and shortcomings of traditional schemes are analyzed. As a novel WFS, the wavefront curvature sensor comprising a diffraction grating(DGWFS), which consist a defocus grating and lens, and can measure the light intensity distribution at the two defocused spots simultaneity , has the advantage of realization easily, adjustment expediently, low cost, and so on. The DGWFS has a wide application in astronomy, measurement, laser, optical component testing etc. Its principle is analyzed. Two kinds of phase retrieval arithmetics of wavefront curvature sensor are analyzed by comparison. Besides, the latest applications of wavefront curvature sensor are generally presented. Finally a novel method for measurement on solid-state laser thermal lens utilizing DGWFS is presented.
KW - Adaptive optic
KW - Diffraction grating
KW - Phase retrieval
KW - Wavefront curvature sensor
UR - https://www.scopus.com/pages/publications/73849121220
U2 - 10.1117/12.837711
DO - 10.1117/12.837711
M3 - Conference contribution
AN - SCOPUS:73849121220
SN - 9780819478948
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 2009 International Conference on Optical Instruments and Technology - Advanced Sensor Technologies and Applications
T2 - 2009 International Conference on Optical Instruments and Technology, OIT'09
Y2 - 19 October 2009 through 21 October 2009
ER -