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Green Lasers

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Definition: lasers emitting in the green spectral region

German: grüne Laser

Category: lasers

How to cite the article; suggest additional literature

This article concerns lasers emitting in the green spectral region, i.e., with a wavelength roughly around 510–570 nm. The choice of laser gain media for such wavelengths is limited, and the performance achievable is typically not as good as e.g. in the infrared spectral region. Nevertheless, green-emitting lasers of various kinds belong to the most often used visible lasers. Some of them are based on nonlinear frequency conversion, namely frequency doubling.

VERDI green laser

Figure 1: Photograph of the VERDI green laser from Coherent. This device contains a diode-pumped vanadate laser with intracavity frequency doubling. The image was kindly provided by Coherent.

The following types of green lasers are the most common:

Applications

Green lasers are used e.g. as laser pointers, for laser projection displays (as part of RGB sources), for printing, in interferometers, in bioinstrumentation, medical scanning, and for pumping of solid-state lasers (e.g. titanium–sapphire lasers). In material processing, green lasers (when compared with near-infrared lasers) can bring benefits via a much higher absorption coefficient e.g. in copper, gold, or silicon.

Suppliers

The RP Photonics Buyer's Guide contains 58 suppliers for green lasers. Among them:

Bibliography

[1]A. J. Silversmith et al., “Green infrared-pumped erbium upconversion laser”, Appl. Phys. Lett. 51, 1977 (1987)
[2]F. Tong et al., “551 nm diode-laser-pumped upconversion laser”, Electron. Lett. 25, 1389 (1989)
[3]T. Hebert et al., “Blue and green CW upconversion lasing in Er:YLiF4”, Appl. Phys. Lett. 57, 1727 (1990)
[4]T. J. Whitley et al., “Upconversion pumped green lasing in erbium doped fluorozirconate fibre”, Electron. Lett. 27 (20), 1785 (1991)
[5]E. Kato et al., “Significant progress in II-VI blue-green laser diode lifetime”, Electron. Lett. 34, 282 (1998)
[6]L. McDonagh and R. Wallenstein, “Low-noise 62 W CW intracavity-doubled TEM00 Nd:YVO4 green laser pumped at 888 nm”, Opt. Lett. 32 (7), 802 (2007)
[7]C. Stolzenburg et al., “Cavity-dumped intracavity-frequency-doubled Yb:YAG thin-disk laser with 100 W average power”, Opt. Lett. 32 (9), 1123 (2007)
[8]J.-Y. Kim et al., “Highly efficient green VECSEL with intra-cavity diamond heat spreader”, Electron. Lett. 43 (2), 105 (2007)
[9]O. B. Jensen et al., “1.5 W green light generation by single-pass second harmonic generation of a single-frequency tapered diode laser”, Opt. Express 17 (8), 6532 (2009)
[10]T. Miyoshi et al., “510–515 nm InGaN-based green laser diodes on c-plane GaN substrate”, Appl. Phys. Express 2, 062201 (2009)
[11]H. Ohta et al., “Future of group-III nitride semiconductor green laser diodes”, J. Opt. Soc. Am. B 27 (11), B45 (2010)
[12]T. Meier et al., “Continuous-wave single-frequency 532 nm laser source emitting 130 W into the fundamental transversal mode”, Opt. Lett. 35 (22), 3742 (2010)
[13]R. Cieslak and W. A. Clarkson, “Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers”, Opt. Lett. 36 (10), 1896 (2011)

(Suggest additional literature!)

See also: lasers, laser diodes, frequency doubling, intracavity frequency doubling, blue lasers, red lasers, yellow and orange lasers, visible lasers, titanium–sapphire lasers, Spotlight article 2006-12-16, Spotlight article 2009-04-06, Spotlight article 2009-04-17
and other articles in the category lasers

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