Roadmap to low cost high brightness diode laser power out of the fiber

Schröder, Daniel; Werner, Ekkehard; Franke, Alexander; Wagner, L.; Bonati, Guido; Dörfel, Falk; Ziemer, H.; Liem, A.; Gabler, T.

doi:10.1117/12.845841

Cited by 4 publications

(1 citation statement)

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“…Fiber-coupled laser-diode (LD) modules for small-core fibers consistently use single-emitters as the light sources [1][2][3][4][5][6] . Due to their individual nature, single emitters can be mechanically-positioned precisely and can be selected for high performance and reliability.…”

Section: Introductionmentioning

confidence: 99%

Record CW-brightness from a single 20% fill-factor 1-cm laser-diode bar at 20°C

Chin¹,

Knapczyk

Jacob

et al. 2011

SPIE Proceedings

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A record, 250W, CW output-power has been achieved for a single, 1cm-wide, 3.5mm cavity-length, 20% fill-factor, 976nm, laser-diode bar operated at 20°C. The remarkable laser-bar performance was in part the result of a novel EPIC (Enhanced Performance Impingement Cooler) heat-sink with a thermal resistance of 0.16K/W. The superb thermal management resulted in record brightness for a laser bar, i.e. a slow-axis divergence of 10° (95% power containment angle) was achieved at 200W output-power. A coupling efficiency of ~74% into a 200μm core, 0.22NA fiber was achieved.

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Section: Introductionmentioning

confidence: 99%

Record CW-brightness from a single 20% fill-factor 1-cm laser-diode bar at 20°C

Chin¹,

Knapczyk

Jacob

et al. 2011

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

Study on laser diode incoherent beam combining technology based on tracepro

Jin

Zou

et al. 2012

2012 International Conference on Optoelectronics and Microelectronics

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Wavelength locking in a large-smile diode-laser array using dual-beam transformation systems

Liu

Chen³

et al. 2020

Appl. Opt.

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Dual-beam transformation systems (dual BTSs) are used to obtain a wide wavelength-locking range for high-power large-smile diode-laser arrays. The collimating residual divergence angle can be reduced from 9 mrad to less than 6.5 mrad using a set of two angled BTSs that are located in front of a diode-laser array with about a 2 µm smile. Due to the reduced collimating residual divergence angle, the external cavity with a set of two angled BTSs and a volume Bragg grating achieved a wide wavelength-locking range for temperatures ranging from 20°C to 30°C. In addition, the side-mode suppression ratio exceeds 30 dB.

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Roadmap to low cost high brightness diode laser power out of the fiber

Cited by 4 publications

References 0 publications

Record CW-brightness from a single 20% fill-factor 1-cm laser-diode bar at 20°C

Record CW-brightness from a single 20% fill-factor 1-cm laser-diode bar at 20°C

Study on laser diode incoherent beam combining technology based on tracepro

Wavelength locking in a large-smile diode-laser array using dual-beam transformation systems

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