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A Multimode Fibre‐coupled Compact Optical Wavelength Meter based on Wollaston Prisms
Author(s) -
O'Dwyer M. J.,
Padgett M. J.
Publication year - 2003
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1046/j.1475-1305.2003.00068.x
Subject(s) - optics , wavelength , perpendicular , metre , calibration , multi mode optical fiber , materials science , optical axis , optical fiber , intensity (physics) , physics , geometry , mathematics , quantum mechanics , astronomy , lens (geology)
We present a compact, portable, and mechanically robust instrument for measuring optical wavelength based on an arrangement of four Wollaston prisms that forms spatially localised fringes in a plane perpendicular to the optic axis. The wavelength is determined from the fringe period. After calibration, the instrument had an accuracy of c. 1 of 10 6 , and was immune to fluctuations in output intensity of a light source of up to 10 dB.