This article is cited in 8 papers

Control of laser radiation parameters

Linewidth-tunable laser diode array for rubidium laser pumping

Zhiyong Li^ab, Rongqing Tan^b, Cheng Xu^ab, Lin Li<sup>ab

a</sup> Graduate University of the Chinese Academy of Sciences, Beijing, China
^b Institute of Electronics, Chinese Academy of Sciences, Beijing, China

Abstract: To optimise the pump source for a high-power diodepumped rubidium vapour laser, we have designed a laser diode array (LDA) with a narrowed and tunable linewidth and an external cavity formed by two volume Bragg gratings (VBGs). Through controlling the temperature differences between the two VBGs, the LDA linewidth, which was 1.8 nm before mounting the two VBGs, was tunable from 100 pm to 0.2 nm, while the output power changed by no more than 4 %. By changing simultaneously the temperature in both VBGs, the centre wavelength in air of the linewidth-tunable LDA was tunable from 779.40 nm to 780.05 nm.

Keywords: alkali lasers, laser diode array, volume Bragg gratings.

PACS: 42.55.Px, 42.55.Xi, 42.40.Eq, 42.55.Lt

Received: 14.09.2012

 English version: Quantum Electronics, 2013, 43:2, 147–149

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