&lt;title&gt;Blue and green optically pumped semiconductor lasers for display&lt;/title&gt;

Chilla, J. L. A.; Zhou, Hailong; Weiss, Eli; Caprara, Andrea; Shou, Qi-Ze; Govorkov, Sergei V.; Reed, Murray K.; Spinelli, Luis

doi:10.1117/12.598301

Cited by 41 publications

(14 citation statements)

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“…Figure 8 shows the measured output power for a longitudinally multimode 460nm laser and for a single mode 488nm system. Application of this technology in rear projection TVs has already been demonstrated 10 , and further power scaling and extension of the emission wavelength range is to be expected. In the low power regime with output powers of up to 50 mW in the blue and 200mW in the green, the preferred intracavity doubling arrangements are shown in Fig.10.…”

Section: Intra-cavity Doubled Solid State Lasersmentioning

confidence: 96%

Continuous-wave blue and green TEM 00 mode solid state lasers: state-of-the-art and applications (Invited Paper)

Hodgson

2005

Solid State Lasers XIV: Technology and Devices

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Section: Intra-cavity Doubled Solid State Lasersmentioning

confidence: 96%

Continuous-wave blue and green TEM 00 mode solid state lasers: state-of-the-art and applications (Invited Paper)

Hodgson

2005

Solid State Lasers XIV: Technology and Devices

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“…Applying similar design principles, but using a combination of large pump spot sizes (0.5-0.9 mm) and thin-devices on diamond submounts for heat removal, very impressive performance from ∼ 980 nm and 1060 nm SDLs have been achieved [14,46,76,77]. The highest powers recorded to-date reach 30 W at 980 nm with a multimode beam (M 2 ∼ 3) [14] and 12 W at 1060 nm with TEM 00 emission [77]. From these results, it can be understood that for devices which present a low thermal resistance mirror, the two thermal management techniques have led to comparable single transverse mode performance but with very different mode sizes.…”

Section: Nm-1100 Nm Sdlsmentioning

confidence: 99%

“…In particular, the development of small form factor, efficient lasers with emission wavelength in the UV or blue spectral regions could be conveniently used as replacements for the current bulky excitation sources Figure 2 (online color at: www.lpr-journal.org) Laser rearprojection television. The laser source is framed in the red box [14]. Image courtesy of Coherent, Inc. used in fluorescence-based bio-imaging (microscopy) [23].…”

Section: Applicationsmentioning

confidence: 99%

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Semiconductor disk lasers for the generation of visible and ultraviolet radiation

Calvez¹,

Hastie

Guina

et al. 2009

Laser & Photonics Reviews

154

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Recent developments in semiconductor disk lasers (SDLs) generating visible or ultraviolet light are reviewed. After an introduction on potential applications, we discuss how the combination of vertical-emitting semiconductor GaAs-based structures and intra-cavity nonlinear conversion techniques can be successfully exploited to uniquely meet demands for continuous-wave radiation in the visible and ultraviolet spectral range. To do so, an overview of the device operating principles and performance is presented highlighting the underlying material considerations, semiconductor structural designs, thermal management techniques and suitable cavity configurations. This summary is completed by a presentation of new developments in the field, with a particular focus on the trends towards miniaturization.Green-pumped direct-red-emitting Semiconductor Disk Laser.

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“…1 The green and blue range of visible wavelengths necessary for RGB (red, green, blue) displays have been especially difficult to obtain. 2,3 To address this, Novalux developed frequency-doubled vertical extended-cavity surface-emitting lasers (VECSELs, also referred to as Necsels: Novalux extendedcavity surface-emitting lasers). [4][5][6] These lasers emit circular Gaussian beams with 8-10% power conversion efficiencies for blue and green wavelengths.…”

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confidence: 99%

Novel laser sources for large-venue projection markets

Jansen¹

2008

SPIE Newsroom

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Efficient blue and green surface-emitting lasers enable highperformance, low-cost light engines for displays.Lamp-based projection sources for use in large venues such as convention halls, theaters, and museums are not easily scalable. These projectors typically combine up to four 200W ultra-highpower lamps in order to provide sufficient projection. As an alternative, xenon lamps of 6000-7000W have been employed in digital cinema projectors. However, the largeétendue (the spread of the light in area and angle) of the lamps makes for inefficient light collection and projection. Moreover, the cost of ownership for such equipment is considerable due to the high electrical consumption associated with operating and cooling the projectors and the high cost of lamp replacements. There is a need in the industry for projection systems with longer lifetimes, lowétendue, and wider color gamuts.New laser-based light sources suitable for large venues are highly desired as they will produce a wide range of colors and are extremely stable. They permit constant power operation over a narrow wavelength emission with no wasted IR or UV spectral content, minimizing the need for color rebalancing. In addition, they allow for faster warm-up times and exhibit low noise compared to lamps. The overall system efficiency and improved thermal performance offer a significant enhancement over lampbased projectors. Lasers would also enable 3D movies since they offer as much as a 60% power advantage over lamp-based systems. Insight Media estimated approximately $7800 in energy savings per year from using laser sources instead of lamps in digital cinema projectors. 1 The green and blue range of visible wavelengths necessary for RGB (red, green, blue) displays have been especially difficult to obtain. 2,3 To address this, Novalux developed frequency-doubled vertical extended-cavity surface-emitting lasers (VECSELs, also referred to as Necsels: Novalux extendedcavity surface-emitting lasers). [4][5][6] These lasers emit circular Gaussian beams with 8-10% power conversion efficiencies for blue and green wavelengths. Other wavelengths such as cyan and yellow can be added in the future using the same technology. Continued on next page

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<title>Blue and green optically pumped semiconductor lasers for display</title>

Cited by 41 publications

References 0 publications

Continuous-wave blue and green TEM 00 mode solid state lasers: state-of-the-art and applications (Invited Paper)

Continuous-wave blue and green TEM 00 mode solid state lasers: state-of-the-art and applications (Invited Paper)

Semiconductor disk lasers for the generation of visible and ultraviolet radiation

Novel laser sources for large-venue projection markets

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