RP Photonics logo
RP Photonics
Technical consulting services on lasers, nonlinear optics, fiber optics etc.
Profit from the knowledge and experience of a top expert!
Powerful simulation and design software.
Make computer models in order to get a comprehensive understanding of your devices!
Success comes from understanding – be it in science or in industrial development.
The famous Encyclopedia of Laser Physics and Technology – available online for free!
The ideal place for finding suppliers for many photonics products.
Advertisers: Make sure to have your products displayed here!
… combined with a great Buyer's Guide!
VLib part of the

Red Lasers

<<<  |  >>>

Definition: lasers emitting red light

German: rote Laser

Category: lasers

How to cite the article; suggest additional literature

This article deals with lasers emitting in the red spectral region, i.e. with a wavelength roughly around 625–700 nm. The following types of red lasers are the most common:

Light from lasers operating at somewhat longer wavelengths, such as 750 or even 800 nm, can still be perceived as red light, if it is sufficiently intense. (There is no sharp boundary between the visible and the infrared spectral regions.) It can, however, be hazardous to view such light, because such intensity levels required for good visibility can damage the retina.

Red lasers are applied e.g. as laser pointers, for optical data recording or retrieval (e.g. on DVDs), for laser projection displays, for interferometers, for pumping of certain solid-state lasers (e.g. Cr:LiSAF or Cr:LiCAF), and in medical therapies (e.g. photodynamic therapy).


[1]H. B. Seereze and C. M. Harding, “100 W 671 nm visible laser diode array”, Electron. Lett. 28 (23), 2115 (1992)
[2]B. Lu et al., “400 mW continuous-wave diffraction limited flared unstable resonator laser diode at 635 nm”, Electron. Lett. 33, 1633 (1997)
[3]W. R. Bosenberg et al., “2.5-W, continuous-wave, 629-nm solid-state laser source”, Opt. Lett. 23 (3), 207 (1998)
[4]Sun et al., “Generation of 11.5 W coherent red-light by intra-cavity frequency-doubling of a side-pumped Nd:YAG laser in a 4-cm LBO”, Opt. Commun. 241, 167 (2004)
[5]J. E. Hastie et al., “High power CW red VECSEL with linearly polarized TEM00 output”, Opt. Express 13 (1), 77 (2004)
[6]C. Du et al., “6-W diode-end-pumped Nd:GdVO4/LBO quasi-continuous-wave red laser at 671 nm”, Opt. Express 13 (6), 2013 (2005)
[7]A. Härkönen et al., “High power frequency doubled GaInNAs semiconductor disk laser emitting at 615 nm”, Opt. Express 15 (6), 3224 (2007)
[8]A. Richter et al., “Power scaling of semiconductor laser pumped praseodymium-lasers”, Opt. Express 15 (8), 5172 (2007)
[9]P. Adamiec et al., “Tapered lasers emitting at 650 nm with 1 W output power with nearly diffraction-limited beam quality”, Opt. Lett. 34 (16), 2456 (2009)

(Suggest additional literature!)

See also: lasers, helium–neon lasers, laser diodes, frequency doubling, blue lasers, green lasers, yellow and orange lasers, laser pointers
and other articles in the category lasers

In the RP Photonics Buyer's Guide, 78 suppliers for red lasers are listed.

If you like this article, share it with your friends and colleagues, e.g. via social media: