Dispersed fringe tracking with the multi-r(o) apertures of the Grand Interferometre a 2 Telescopes

被引：55

作者：

Koechlin, L

Lawson, PR

Mourard, D

Blazit, A

Bonneau, D

Morand, F

Stee, P

TallonBosc, I

Vakili, F

机构：

[1] OBSERV LYON, UNITE MIXTE RECH, CNRS 142, F-69561 ST GENIS LAVAL, FRANCE

[2] OBSERV COTE AZUR, DEPT FRESNEL, URA CNRS 1361, F-06460 ST VALLIER DE THIEY, FRANCE

来源：

APPLIED OPTICS | 1996年 / 35卷 / 16期

关键词：

astronomy; interferometry; fringe tracking;

D O I：

10.1364/AO.35.003002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new fringe tracker based on photon-counting detectors and real-time image processing has been implemented on the Grand Interferometre a 2 Telescopes at the Observatoire de la Gate d'Azur. Fringe visibilities have been recorded on P Cygni and other stars across the H alpha emission line with optical path differences stabilized to between 4 and 7 mu m rms (1% of the coherence length). We present our initial results and describe the principle, implementation, and performance of the fringe tracker. (C) 1996 Optical Society of America

引用

页码：3002 / 3009

页数：8

共 19 条

[1] MEASUREMENT OF AVERAGED SQUARED MODULUS OF ATMOSPHERIC-LENS MODULATION TRANSFER-FUNCTION [J].