论文信息 - High-Precision, Digital, Phase-Stepping Interferometry With Laser Diodes

High-Precision, Digital, Phase-Stepping Interferometry With Laser Diodes

The use of a laser diode for phase-stepping interferometry is very attractive, because the wavelength can be shifted by changing the injection current. However, several problems have to be overcome if high precision measurements are to be made. This paper analyses some of the sources of error and shows how they can be controlled.

P. Hariharan

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