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About some interesting applications of diode lasers

Laser wevelength, nm Applications
405 405nm lasers are an ideal choice for Fluorescence Excitation,
PIV ,Raman Spectroscopy,Educational Tool, Portable Light Source
and a Broad Range of Other Applications.

Violet laser radiation is particularly useful in direct curing
of photoresists or UV glue as well as in fluorescence
spectroscopy. Applications range from 3D printing
(stereolithography) to medical diagnostics in oncology,
dermatology and so forth.

405 nm lasers can be modulated, therefore they are particularly
suitable for flow-cytometry and other applications, where
high-speed modulation is necessary.
808 The most common application of high-power diode lasers is to
pump the gain media of solid-state and fiber-laser systems.
Over the last two decades, the availability of high-power diode
pumps at wavelengths like 808 nm has enabled enormous
improvements in laser-system operating efficiency and
compactness compared to traditional lamp-pumped lasers.
However, those diodes have otherwise not been optimal for the
broadening array of pump applications. Specifically, diodes
have had only moderate spatial brightness, a limited range of
wavelengths available, and poor spectral stability requiring
precise temperature control, which adds complexity and cost.
980 The use of lasers in skin diseases is quite common. In contrast
to other laser types, medical literature about 980 nm
ultrapulsed diode laser is sparse in dermatology. Herein, we
report the use of ultrapulsed diode 980 nm laser in 300
patients with vascular lesions, cysts and pseudocysts,
infectious disease, and malignant tumors. This laser is a
versatile tool with excellent safety and efficacy in the hands
of the experienced user.

The 980 nm diode laser is widely used in dentistry, urology,
gynecology, and vascular medicine.[2,3,4,5] Surprisingly, the
literature about 980 nm diode laser use in dermatology is very
sparse. Ultrapulsed 980 nm diode laser offers some advantages.
Choosing very short exposure times, heat that is generated into
the tissue cannot diffuse in the adjacent parts and local
overheating occurs. This will result in vaporization at
temperatures >300°C. The pulse duration of microseconds will
ablate tissue into fragments.

Common wavelengths

Visible light

405 nm – InGaN blue-violet laser, in Blu-ray Disc and HD DVD drives
445–465 nm – InGaN blue laser multimode diode recently introduced (2010) for use in mercury-free high-brightness data projectors
510–525 nm – Green diodes recently (2010) developed by Nichia and OSRAM for laser projectors.
635 nm – AlGaInP better red laser pointers, same power subjectively twice as bright as 650 nm
650–660 nm – GaInP/AlGaInP CD and DVD drives, cheap red laser pointers
670 nm – AlGaInP bar code readers, first diode laser pointers (now obsolete, replaced by brighter 650 nm and 671 nm DPSS)

Infrared

760 nm – AlGaInP gas sensing: O2
785 nm – GaAlAs Compact Disc drives
808 nm – GaAlAs pumps in DPSS Nd:YAG lasers (e.g., in green laser pointers or as arrays in higher-powered lasers)
848 nm – laser mice
980 nm – InGaAs pump for optical amplifiers, for Yb:YAG DPSS lasers
1,064 nm – AlGaAs fiber-optic communication, DPSS laser pump frequency
1,310 nm – InGaAsP, InGaAsN fiber-optic communication
1,480 nm – InGaAsP pump for optical amplifiers
1,512 nm – InGaAsP gas sensing: NH3
1,550 nm – InGaAsP, InGaAsNSb fiber-optic communication
1,625 nm – InGaAsP fiber-optic communication, service channel
1,654 nm – InGaAsP gas sensing: CH4
1,877 nm – GaInAsSb gas sensing: H2O
2,004 nm – GaInAsSb gas sensing: CO2
2,330 nm – GaInAsSb gas sensing: CO
2,680 nm – GaInAsSb gas sensing: CO2
3,030 nm – GaInAsSb gas sensing: C2H2
3,330 nm – GaInAsSb gas sensing: CH4

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