Browsing by Author "CHUANG, YH"

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2-WAVELENGTH INTERFEROMETER BASES ON A 2-COLOR LASER-DIODE ARRAY AND THE 2ND-ORDER CORRELATION TECHNIQUE
(1995-05-01)
WANG, CL
;
CHUANG, YH
;
PAN, CL
;
交大名義發表
;
光電工程學系
A novel two-wavelength interferometer is demonstrated that uses a tunable two-color laser-diode array as the light source. The synthetic wavelength can be easily tuned from 2 to 0.043 mm by variation of the spectral separation between the two wavelengths of the laser output. By using the second-order correlation technique we can directly retrieve the phase change at the synthetic wavelength with no need for sophisticated electronic signal processing.