High-power dual-wavelength external-Cavity diode laser based on tapered amplifier with tunable terahertz frequency difference

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Abstract

Tunable dual-wavelength operation of a diode laser system based on a tapered diode amplifier with double-Littrow external-cavity feedback is demonstrated around 800nm. The two wavelengths can be tuned individually, and the frequency difference of the two wavelengths is tunable from 0.5 to 5:0 THz. An output power of 1:54W is achieved with a frequency difference of 0:86 THz, the output power is higher than 1:3W in the 5:0 THz range of frequency difference, and the amplified spontaneous emission intensity is more than 20 dB suppressed in the range of frequency difference. To our knowledge, this is the highest output power from a dual-wavelength diode laser system operating with tunable terahertz frequency difference. © 2011 Optical Society of America.
Original languageEnglish
JournalOptics Letters
Volume36
Issue number14
Pages (from-to)2626-2628
ISSN0146-9592
DOIs
Publication statusPublished - 2011

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-36-14-2626. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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