Blue diode pumped solid-state lasers for digital projection

Bellancourt, A.-R.; Mackens, U.; Moench, Holger; Weichmann, Ulrich

doi:10.1134/s1054660x10050026

Cited by 39 publications

(21 citation statements)

References 7 publications

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“…[1][2][3][4] The investigation of these laser materials has been driven mainly by the interest in novel color display technologies and storage techniques. 5 Alternatives to the fluoride crystals, suffering predominantly from a rather moderate thermal conductivity (approx. 5-7 W.m −1 .K −1 at 300 K) and a low hardness (4-5 on the Mohs scale), 6 are oxides which yield benefits from an excellent hardness (8.5-9 on the Mohs scale) and a satisfactory thermal conductivity (not worse than 11 W.m −1 .K −1 at 300 K).…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

2014

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We report on spectroscopic and lasing properties of Pr:YAlO 3 crystal down to cryogenic temperature. Fluorescence lifetime, polarization-resolved absorption and emission spectra, and laser characteristics in the green spectral range are described. Using 1-W InGaN laser-diode pumping together with microchip resonator geometry, 37 mW of continuous-wave output power at 547 nm wavelength at 80 K crystal temperature is reported. The corresponding oscillation threshold and slope efficiency related to absorbed pump power were 320 mW and 6.5 %, respectively.

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Section: Introductionmentioning

confidence: 99%

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

2014

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“…Investigation of these materials has been driven mainly by the interest in novel color display technologies and storage techniques. 1 Although the highest attention has been paid to fluoride Pr:LiYF 4 and Pr:LiLuF 4 crystals, 2, 3 low-phonon oxygencontaining laser compounds (like Pr,Mg:SrAl 12 O 19 4 or perovskite-type oxides -e.g., Pr:YAlO 3 5 ) are worthy alternatives. These materials, compared to Pr-fluorides, exhibit a superior hardness (8.5-9 on the Mohs scale) and satisfactory thermal conductivity (not worse than 11 W.m −1 .K −1 at 300 K).…”

Section: Introductionmentioning

confidence: 99%

Cryogenically cooled Pr:YAlO₃laser operating at 747 nm, 662 nm, and 622 nm wavelengths

Fibrich

Šulc²,

Jelı́nková

2014

Laser Sources and Applications II

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Influence of temperature on Pr:YAlO 3 laser behaviour in the near-infrared (747 nm), red (662 nm), orange (622 nm), and green (547 nm) spectral range is reported. To realize Pr:YAlO 3 laser systems operating down to the cryogenic temperature, a microchip geometry formed by dielectric films directly deposited on the crystal facets has been proposed and employed. This geometry is particularly attractive due to its compact and rugged design. The best results were demonstrated for the 747 nm wavelength; more than 300 mW of output power with the slope efficiency over 55 % has been extracted from the cryogenically cooled Pr:YAlO 3 active material under 1-W InGaN diode pumping. In addition, the first diode-pumped Pr:YAlO 3 orange laser is described, as we believe.

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“…From bigger, standalone devices that connect to different types of electronic equipment, like digital cameras or portable computers, larger screen sizes and an accordingly higher light flux of about 100lm is expected. This in turn requires lasers of about 200mW power in every primary color [2]. Different projection display technologies can be used in combination with lasers.…”

Section: Projection Requirementsmentioning

confidence: 99%

47.2: Solid‐State Lasers Emitting at Red, Green and Orange Wavelengths for Projection Applications

Weichmann

Mackens

Moench

2011

Symp Digest of Tech Papers

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Lasers will bring a further step in terms of compactness and efficiency for projection systems. However, the availability of suitable green laser sources limits the advent of laser projection. Blue diode pumped solid-state lasers are presented here as one promising way to realize green, red and orange lasers that are specifically suited for projection applications.Keywords: laser, projection (A) The paper should be considered for oral presentation.(B) The paper will fit to the Symposium Topic (12): Projection Systems, Light Sources including Lamps, LEDs and Lasers.Solid-state lasers emitting at red, green and orange wavelengths for projection applications U. Weichmann, et al.

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Blue diode pumped solid-state lasers for digital projection

Cited by 39 publications

References 7 publications

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

Cryogenically cooled Pr:YAlO₃laser operating at 747 nm, 662 nm, and 622 nm wavelengths

47.2: Solid‐State Lasers Emitting at Red, Green and Orange Wavelengths for Projection Applications

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Blue diode pumped solid-state lasers for digital projection

Cited by 39 publications

References 7 publications

Spectroscopic and lasing properties of Pr:YAlO3material at cryogenic temperature

Spectroscopic and lasing properties of Pr:YAlO3material at cryogenic temperature

Cryogenically cooled Pr:YAlO3laser operating at 747 nm, 662 nm, and 622 nm wavelengths

47.2: Solid‐State Lasers Emitting at Red, Green and Orange Wavelengths for Projection Applications

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Product

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About

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

Spectroscopic and lasing properties of Pr:YAlO₃material at cryogenic temperature

Cryogenically cooled Pr:YAlO₃laser operating at 747 nm, 662 nm, and 622 nm wavelengths