Optical frequency domain angle measurement in a femtosecond laser autocollimator

被引：56

作者：

Chen, Yuan-Liu ^{[1
]}

Shimizu, Yuki ^{[1
]}

Tamada, Jun ^{[1
]}

Kudo, Yukitoshi ^{[1
]}

Madokoro, Shuhei ^{[1
]}

Nakamura, Kazuki ^{[1
]}

Gao, Wei ^{[1
]}

机构：

[1] Tohoku Univ, Dept Finemech, Aoba Ku, 6-6-01 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 14期

基金：

日本学术振兴会;

关键词：

MODE-LOCKED LASER; COMB; MOTIONS; ETALON; STAGE;

D O I：

10.1364/OE.25.016725

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A mode-locked laser autocollimator, in which a group of first-order diffracted beams from a grating reflector are detected by an autocollimation unit, has an expanded angle measurement range compared with a conventional autocollimator using a single-wavelength laser source. In this paper, a new optical frequency domain angle measurement method is proposed to increase the visibility of output signal of the mode-locked femtosecond laser autocollimator, which is limited by the overlap of the focused diffracted light spots. The output visibility of a prototype femtosecond laser autocollimator has been increased by the proposed method to approximately 100% over a large range of 21600 arc-seconds. (C) 2017 Optical Society of America

引用

页码：16725 / 16738

页数：14

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