Diode laser direct modulation heterodyne interferometer
- 1 January 1987
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 26 (1) , 37-40
- https://doi.org/10.1364/ao.26.000037
Abstract
A new type of heterodyne interferometer was made through direct modulation of a diode laser wavelength. A measurement accuracy of better than λ/50 and repeatability of λ/100 were obtained. This interferometer shows promise for use in testing wavefront aberrations, especially in optical disk systems.Keywords
This publication has 3 references indexed in Scilit:
- Measurement and analysis of diode laser wave frontsApplied Optics, 1981
- Use of an ac heterodyne lateral shear interferometer with real–time wavefront correction systemsApplied Optics, 1975
- Digital Wavefront Measuring Interferometer for Testing Optical Surfaces and LensesApplied Optics, 1974