Authors

M. Hu; Y. Y. Zheng; J. Cai; G. J. Zhang; Q. L. Li; X. F. Zhou; Y. Z. Wei;Y. Lu

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

MICROCHIP LASER; MU-M; GENERATION; CAVITY; STABILIZATION; SIGNALS; SINGLE; Optics

Abstract

A CW dual-frequency master oscillator power amplifier (MOPA) laser system with dozens of gigahertz (GHz) frequency separation is presented. The MOPA system consists of a monolithic microchip seed laser and a double-end pumped traveling wave power amplifier. The short length of seed laser cavity guarantees the seed signal with a large frequency separation (above 53 GHz) but low output power (below 247.8 mW). By adding a long and low-doped active medium laser amplifier stage, a significant increase in laser power and an improvement in beam quality are obtained. After fine temperature tuning of seed laser cavity for "spectra matching", a 2.40 W dual-frequency laser signal with 45 GHz frequency separation is achieved.

Journal Title

Optics Express

Volume

23

Issue/Number

8

Publication Date

1-1-2015

Document Type

Article

Language

English

First Page

9881

Last Page

9889

WOS Identifier

WOS:000353299300037

ISSN

1094-4087

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