1 December 2005 Oblique fiber optic diffraction interferometer for testing spherical mirrors
Author Affiliations +
Abstract
We present a new type of point diffraction interferometer that employs single-mode optical fibers instead of traditional pinholes. Two optical fibers with different exit endfaces are used; one is normally cut and the other obliquely cleaved. The normally cut fiber is used to generate a near-perfect spherical reference wave. The test wave is produced from the oblique fiber that performs two functions: generating a spherical wave to illuminate the test optics, and reflecting the test wave for common-path combination with the reference wave. The interferometer proposed in this investigation is found suitable for testing large size mirrors with a relatively simple overall hardware configuration.
©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)
Hagyong Kihm and Seung-Woo Kim "Oblique fiber optic diffraction interferometer for testing spherical mirrors," Optical Engineering 44(12), 125601 (1 December 2005). https://doi.org/10.1117/1.2148367
Published: 1 December 2005
Lens.org Logo
CITATIONS
Cited by 8 scholarly publications and 1 patent.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Interferometers

Mirrors

Spherical lenses

Diffraction

Fiber optics

Optical testing

Single mode fibers

Back to Top