100 W/100 μm passively cooled fiber coupled diode laser at 976 nm based on multiple 100 μm single emitters

Werner, M.; Wessling, Christian; Hengesbach, Stefan; Traub, Martin; Hoffmann, Hans-Dieter

doi:10.1117/12.810487

Cited by 8 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multi tube LD spatial beamforming is limited by fiber coupling conditions. In order to efficiently couple the light emitted by lasers into the fiber, the following two basic fiber coupling conditions need to be met [17] :…”

Section: Space Beamforming System Combined With Fiber Coupling Condit...mentioning

confidence: 99%

Design and research of forced air-cooled 100W level blue light LD fiber coupling module

Gong,

Qin,

Liu

et al. 2024

Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023)

View full text Add to dashboard Cite

Blue semiconductor lasers have broad application prospects in fields such as material processing, underwater communication, and ocean exploration due to their unique wavelength advantages. At present, the power of blue light single tube LDs is relatively low. By using incoherent laser beam combining technology and fiber coupling technology, multiple blue light LDs can be synthesized into a high-power and high uniformity laser, meeting a wider range of application needs. This article designs a 100W level blue light LD fiber coupling module, which uses 32 single tubes with a power of 5W LDs. Through spatial and polarization beam combining design, it is focused and coupled into 105 μm/NA0.22 optical fiber. After simulation with Zemax software, a 138.7 W high brightness blue laser was obtained, with a fiber coupling efficiency of 91.48%. A dual axial flow fan air-cooled heat dissipation structure has been designed. After simulation with Ansys Icepak software, the maximum temperature of the laser module is 35.1 ℃, and it can continuously output light for operation.

show abstract

Section: Space Beamforming System Combined With Fiber Coupling Condit...mentioning

confidence: 99%

Design and research of forced air-cooled 100W level blue light LD fiber coupling module

Gong,

Qin,

Liu

et al. 2024

Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023)

View full text Add to dashboard Cite

show abstract

“…High power fiber lasers (HPFLs) are currently under intense investigations benefiting from eminent advantages such as good beam quality, high conversion efficiency, small footprint and excellent reliability [1], [2]. Thanks to the gradual availability of high-brightness Laser diodes (LDs), robust high-power fiber components and novel pumping schemes such as tandem pumping [3]- [6], the continuous-wave (CW) HPFLs have witnessed an exponential power increase and led to a variety of scientific and industrial applications [7], [8]. The primary implementation of HPFL is Ytterbiumdoped fiber laser (YDFL) [9], [10], generating up to 10-kW near-diffraction-limited CW laser and beyond [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Heat Distribution in Raman Fiber Lasers and Amplifiers Employing Pure Passive Fiber

Chen

Yao

et al. 2020

IEEE Photonics J.

View full text Add to dashboard Cite

In this paper, we study the thermal dissipation of Raman fiber laser and amplifier utilizing pure passive fiber as gain medium for the first time. Take into account the convective and conductive heat transferring process in the fiber, we consider the heat transferring and Raman conversion model based on the thermal conduction equations and the Raman coupled equations in the fiber. With the simulation of power distribution, the thermal profiles of Raman fiber laser are analyzed, including the transverse and longitudinal distributions of the heat load density, temperature, and thermal-induced refractive index change in the fiber. Meanwhile, the heat dissipation in multimode graded-index fiber and step-index fiber are also calculated and compared. The results show that the amplifier is superior to the resonator in heat alleviation, and the forward pumping scheme is also better to ease the thermal load than the backward and bidirectional pumping schemes, which have consult meaning for the suppression of thermal effects and the power scaling in Raman fiber lasers.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

100 W/100 μm passively cooled fiber coupled diode laser at 976 nm based on multiple 100 μm single emitters

Cited by 8 publications

References 0 publications

Design and research of forced air-cooled 100W level blue light LD fiber coupling module

Design and research of forced air-cooled 100W level blue light LD fiber coupling module

Theoretical Analysis of Heat Distribution in Raman Fiber Lasers and Amplifiers Employing Pure Passive Fiber

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

Contact Info

Product

Resources

About