학술논문
A digital phasemeter for precision length measurements
Document Type
Conference
Source
2012 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2012 Conference on. :1-2 May, 2012
Subject
Language
ISSN
2160-8989
Abstract
We report on a digital phasemeter for application in precision length measurement using laser interferometry. Our interferometer demonstrates a length sensitivity of 0.5 pm/√Hz above 5 Hz, and a cyclic error of better than 50 pm.