Reducing the equivalent coherence length of multiwavelength combination source

Dongning Wang

doi:10.1117/12.385560

9 May 2000 Reducing the equivalent coherence length of multiwavelength combination source

Dongning Wang

Proceedings Volume 4077, International Conference on Sensors and Control Techniques (ICSC 2000); (2000) https://doi.org/10.1117/12.385560
Event: International Conference on Sensors and Control Techniques (ICSC2000), 2000, Wuhan, China

Abstract

The measurement resolution in white light interferometry is, to some extent, determined by the coherence length of the light source used. By the use of multi-wavelength combination source, the equivalent coherence length can be greatly reduced. In this paper, the fringe pattern from a multi-wavelength combination source consisting of three commonly used multi-mode laser diodes is transformed into a discrete fringe pattern. The system has a stable output and is suitable for high precision white light interferometric measurement where good system stability is required.

Citation Download Citation

Dongning Wang "Reducing the equivalent coherence length of multiwavelength combination source", Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); https://doi.org/10.1117/12.385560

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available