Simulation of the phase-shift and anti-vibration in wavefront time-domain algorithm

Lei Tang; Qun Hao; Qiudong Zhu

doi:10.1117/12.755622

28 November 2007 Simulation of the phase-shift and anti-vibration in wavefront time-domain algorithm

Lei Tang, Qun Hao, Qiudong Zhu

Proceedings Volume 6834, Optical Design and Testing III; 68342A (2007) https://doi.org/10.1117/12.755622
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The wavefront time-domain detection algorithm is a simple, practical and low-cost interferometry method, which can be adapted to all kinds of outside noise and achieve high accuracy in interferometric measurement on optical components and systems. For further understanding the wavefront time-domain measurement of anti-jamming capability and accuracy of interferometry, the simulation is presented of time-domain sampling frequency of interferograms, external vibration frequency and amplitude, and harmonic effect, etc. in this paper. This algorithm makes the measurement controlled by means of using the environment vibration and air turbulence as phase shifters, simply with assistance of active phase shifting. Acquiring adequate interferograms to calculate the phase value of each point, we can obtain the stable wave surface wiping off random vibration and air turbulence by the unwrapping and average calculation. In this process, by changing the time-domain sampling frequency, external vibration frequency and amplitude in the simulation, the relationships among them can be obtained. The appropriate sampling frequency could be chosen according to the conditions of actual measurement to ensure the accuracy and stability of measurement. According to statistical analysis, this algorithm enhance its ability of anti-jamming, and improve the adaptability and especially for the real-time detection of large aperture mirror.

Citation Download Citation

Lei Tang, Qun Hao, and Qiudong Zhu "Simulation of the phase-shift and anti-vibration in wavefront time-domain algorithm", Proc. SPIE 6834, Optical Design and Testing III, 68342A (28 November 2007); https://doi.org/10.1117/12.755622

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Wavefronts

Photovoltaics

Interferometry

Computer simulations

Turbulence

Phase shifts

Detection and tracking algorithms

Show All Keywords

Keywords/Phrases

Search In:

Publication Years