Acta Optica Sinica, Volume. 5, Issue 7, 609(1985)
Measurement of tiny path difference by phase difference of optical beat
A method for the measurement of optical path difference by phase difference of optical beat is discussed with respect to a Gauss beam from a twin-frequency laser with its light frequency and frequency difference stabilized. The measurement of tiny path difference is performed bv this method with a measurement sensitivity of the order of 1A.
Get Citation
Copy Citation Text
XU BINGDE. Measurement of tiny path difference by phase difference of optical beat[J]. Acta Optica Sinica, 1985, 5(7): 609