980 nm high brightness external cavity broad area diode laser bar

Deepak Vijayakumar; Ole Bjarlin Jensen; Birgitte Thestrup Nielsen

doi:10.1364/OE.17.005684

980 nm high brightness external cavity broad area diode laser bar

Deepak Vijayakumar, Ole Bjarlin Jensen, Birgitte Thestrup Nielsen

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Abstract

We demonstrate of-axis spectral beam combining applied to a 980 nm high power broad area diode laser bar. The experiments yielded 9 W of optical power at 30 A of operating current and the measured M2 values of the combined beam from 12 emitters were 1.9 and 6.4 for the fast and the slow axis, respectively. The slow axis beam quality was 5-6 times better than the value obtained from a single emitter in free running mode. A high brightness of 79 MW/cm2-str was achieved using this configuration. To our knowledge, this is the highest brightness level ever achieved from a broad area diode laser bar.

Original language	English
Journal	Optics Express
Volume	17
Issue number	7
Pages (from-to)	5684-5690
ISSN	1094-4087
DOIs	https://doi.org/10.1364/OE.17.005684
Publication status	Published - 2009

Bibliographical note

This paper was published in Optics Express 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/oe/abstract.cfm?uri=oe-17-7-5684. 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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title = "980 nm high brightness external cavity broad area diode laser bar",

abstract = "We demonstrate of-axis spectral beam combining applied to a 980 nm high power broad area diode laser bar. The experiments yielded 9 W of optical power at 30 A of operating current and the measured M2 values of the combined beam from 12 emitters were 1.9 and 6.4 for the fast and the slow axis, respectively. The slow axis beam quality was 5-6 times better than the value obtained from a single emitter in free running mode. A high brightness of 79 MW/cm2-str was achieved using this configuration. To our knowledge, this is the highest brightness level ever achieved from a broad area diode laser bar.",

author = "Deepak Vijayakumar and Jensen, {Ole Bjarlin} and {Thestrup Nielsen}, Birgitte",

note = "This paper was published in Optics Express 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/oe/abstract.cfm?uri=oe-17-7-5684. 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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doi = "10.1364/OE.17.005684",

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AU - Jensen, Ole Bjarlin

AU - Thestrup Nielsen, Birgitte

N1 - This paper was published in Optics Express 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/oe/abstract.cfm?uri=oe-17-7-5684. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

PY - 2009

Y1 - 2009

N2 - We demonstrate of-axis spectral beam combining applied to a 980 nm high power broad area diode laser bar. The experiments yielded 9 W of optical power at 30 A of operating current and the measured M2 values of the combined beam from 12 emitters were 1.9 and 6.4 for the fast and the slow axis, respectively. The slow axis beam quality was 5-6 times better than the value obtained from a single emitter in free running mode. A high brightness of 79 MW/cm2-str was achieved using this configuration. To our knowledge, this is the highest brightness level ever achieved from a broad area diode laser bar.

AB - We demonstrate of-axis spectral beam combining applied to a 980 nm high power broad area diode laser bar. The experiments yielded 9 W of optical power at 30 A of operating current and the measured M2 values of the combined beam from 12 emitters were 1.9 and 6.4 for the fast and the slow axis, respectively. The slow axis beam quality was 5-6 times better than the value obtained from a single emitter in free running mode. A high brightness of 79 MW/cm2-str was achieved using this configuration. To our knowledge, this is the highest brightness level ever achieved from a broad area diode laser bar.

U2 - 10.1364/OE.17.005684

DO - 10.1364/OE.17.005684

M3 - Journal article

SN - 1094-4087

VL - 17

SP - 5684

EP - 5690

JO - Optics Express

JF - Optics Express

IS - 7

ER -

980 nm high brightness external cavity broad area diode laser bar

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