High-power, high-efficiency laser diodes at JDSU

Peters, M.G.; Rossin, Victor; Everett, Matthew J.; Zucker, Erik

doi:10.1117/12.701072

Cited by 40 publications

(23 citation statements)

References 2 publications

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“…The use of high power, high efficiency laser diodes is particularly interesting since, as discussed in Sect. 3, these devices have the highest demonstrated electricity-to-light conversion efficiencies at any wavelength (76% at 940 nm [72]). While stimulated emission devices typically have very narrow linewidths (< 1 nm), such linewidths, as discussed in Sect.…”

Section: Novel Approaches To Photon Manipulationmentioning

confidence: 99%

“…Nevertheless, there are prior examples from related technologies that such ultra-efficient SSL may be possible, at least in principle. In particular, high-power semiconductor laser diodes emitting infrared (900-980 nm) light for optical pumping, sensing, and materials processing applications now have electrical-tooptical power-conversion efficiencies of 76% [21,72], with targeted efficiencies of 80%. Progress is being made in efficiencies of semiconductor lasers in the visible region, as well.…”

Section: Approaches To > 70% Efficiencymentioning

confidence: 99%

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Research challenges to ultra‐efficient inorganic solid‐state lighting

Phillips¹,

Coltrin

Crawford

et al. 2007

Laser & Photonics Reviews

378

268

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Solid-state lighting is a rapidly evolving, emerging technology whose efficiency of conversion of electricity to visible white light is likely to approach 50% within the next several years. This efficiency is significantly higher than that of traditional lighting technologies, giving solid-state lighting the potential to enable significant reduction in the rate of world energy consumption. Further, there is no fundamental physical reason why efficiencies well beyond 50% could not be achieved, which could enable even more significant reduction in world energy usage. In this article, we discuss in some detail: (a) the several approaches to inorganic solid-state lighting that could conceivably achieve "ultra-high," 70% or greater, efficiency, and (b) the significant research questions and challenges that would need to be addressed if one or more of these approaches were to be realized.

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Section: Novel Approaches To Photon Manipulationmentioning

confidence: 99%

Section: Approaches To > 70% Efficiencymentioning

confidence: 99%

Research challenges to ultra‐efficient inorganic solid‐state lighting

Phillips¹,

Coltrin

Crawford

et al. 2007

Laser & Photonics Reviews

378

268

View full text Add to dashboard Cite

show abstract

“…Nowadays, the developments in laser diode technology are progressing rapidly due to the needs of the market and driven by government foundations like DARPA/SHEDS [2] in the US, BRIOLAS [3] in Germany and others. In addition to the very impressive data of these R&D projects, the results of these developments have lead to new passively cooled BALB which are available as qualified products [4,5].…”

Section: Combination Of New Balb and Standard Micro-optical Designmentioning

confidence: 99%

Highly efficient fiber coupling of laser diode bars with > 50% electro-optical efficiency out of the fiber core

Fornahl¹,

Revermann²,

Meinschien³

2008

SPIE Proceedings

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Fiber-coupled diode lasers have become an established source for many industrial applications due to their high wallplug efficiency, minimal maintenance and cost per watt. To decrease system size and cost for cooler and driver, high coupling efficiencies have become more and more important. Recent developments in broad area laser diode bars (BALB) and beam shaping systems with micro-optical components are leading to new highly efficient fiber coupling. We present newly developed high power diode laser modules which are performing at outstanding efficiencies with smallest package design. The combination of recently designed laser diode bars on passive heat sinks and optimized micro-optics results in laser modules with up to 60W out of a 200µm fiber with a 0.22 NA and > 50% electro-optical efficiency out of the fiber core, based on only one laser diode bar. The applications for such laser diode modules range from pumping of fiber lasers and amplifiers, over materials processing to medical applications. The presentation of the technology will show a path to scale high-brightness laser systems to higher power levels and efficiencies. The combination of different coupling techniques will allow laser modules with 100W out of 100µm fiber core up to 1.6kW out of 400µm fiber core with electro-optical efficiencies of > 45%.

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“…In near infrared (NIR), LDs are the most efficient high power sources of photons, in terms of electrical-to-optical power conversion. For example, in 2007, Peters et al reported high power 940 nm LDs with electrical-to-optical power conversion efficiency as high as 76% [6]. Naturally, there has also been an enormous interest in developing efficient high power LDs operating at visible (RGB) wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Lighting with laser diodes

Basu

Meinhardt‐Wollweber

Roth

2013

Advanced Optical Technologies

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Contemporary white light-emitting diodes (LEDs) are much more efficient than compact fluorescent lamps and hence are rapidly capturing the market for general illumination. LEDs are also replacing halogen lamps or even newer xenon based lamps in automotive headlamps. Because laser diodes are inherently much brighter and often more efficient than corresponding LEDs, there is great research interest in developing laser diode based illumination systems. Operating at higher current densities and with smaller form factors, laser diodes may outperform LEDs in the future. This article reviews the possibilities and challenges in the integration of visible laser diodes in future illumination systems.

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High-power, high-efficiency laser diodes at JDSU

Cited by 40 publications

References 2 publications

Research challenges to ultra‐efficient inorganic solid‐state lighting

Research challenges to ultra‐efficient inorganic solid‐state lighting

Highly efficient fiber coupling of laser diode bars with > 50% electro-optical efficiency out of the fiber core

Lighting with laser diodes

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