Compact green Ti:sapphire astro-comb with a 43 GHz repetition frequency

被引：8

作者：

Chae, Eunmi ^{[1
,2
]}

Kambe, Eiji ^{[3
,4
]}

Motohara, Kentaro ^{[5
,6
]}

Izumiura, Hideyuki ^{[4
]}

Doi, Mamoru ^{[5
]}

Yoshioka, Kosuke ^{[1
]}

机构：

[1] Univ Tokyo, Photon Sci Ctr, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Korea Univ, Coll Sci, Dept Phys, Seoul 02841, South Korea

[3] Natl Astron Observ Japan, Subaru Telescope, 650 North Aohoku Pl, Hilo, HI 96720 USA

[4] Natl Astron Observ Japan, Okayama Branch, Subaru Telescope, Okayama 7190232, Japan

[5] Univ Tokyo, Sch Sci, Inst Astron, Mitaka Ku, Tokyo 1810015, Japan

[6] Natl Astron Observ Japan, Adv Technol Ctr, Mitaka Ku, Tokyo 1818588, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 07期

基金：

新加坡国家研究基金会; 日本学术振兴会;

关键词：

OPERATION; PRECISION;

D O I：

10.1364/JOSAB.419078

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A compact green astro-comb with a 43 GHz repetition rate is developed based on a Ti:sapphire optical frequency comb (OFC) and a mode-selecting cavity. The OFC's large repetition rate of 1.6 GHz eases the requirements for the mode-selecting cavity. Unnecessary frequency modes of the OFC are suppressed down to 5 x 10(-4) at 535-550 nm using a single mode-selecting cavity with 70 MHz linewidth. The radial velocity precision a similar to 1.4 m/s is achieved at the high dispersion echelle spectrograph for the Okayama 188 cm telescope of the National Astronomical Observatory of Japan using our astro-comb. With further improvements of the mode-selecting cavity and removal of fiber modal noises, our system will provide a simple, compact, and precise astro-comb setup in the visible wavelength region. (C) 2021 Optical Society of America

引用

页码：A1 / A6

页数：6

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