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Er Laser Glass For Solid State Rangefinder Multi Functional Iso9001 Certified

Nanjing Crylink Photonics Co.,Ltd
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Nanjing Crylink Photonics Co.,Ltd

Er Laser Glass For Solid State Rangefinder Multi Functional Iso9001 Certified

Country/Region china
City & Province shanghai shanghai
Categories Steel Round Bars
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Product Details

Product Details

Erbium and Ytterbium co-doped glasses, mostly of phosphate types, widely used in several different fields like dermatology laser, telecommunication, and Laser-induced breakdown spectroscopy (LIBS). Since its excellent optical quality, high water peak region, as well as high threshold pump power, the Er:glass is bound to become a popular laser gain medium. Typically, it is the most glass material for 1535nm laser. Because of the characteristic of this wavelength, Er:glass plays an important role in the

eye-safe laser applications.

Laser rangefinder is one of the eye-safe laser usages and more commonly used for military use. It is made up of Er:glass solid state laser. Thanks to their high repetition rate, they are able to measure an object moving at high speeds. As for working range, this kind of laser rangefinder accurately and reliably measures objects within 40 kilometers. And there two main applications, one is multi sensor platforms for vehicles, aircraft or vessels, and border control systems. Another is fire control systems like air defense, Target Tracking, etc.

 

Parameter
Laser Specifications

 EAT14WM4
Cross section for stimulated emission (10-20cm2)0.80.75
Fluorescent lifetime (ms)*7.7-8.07.7-8.2
Center lasing wavelength (nm)15351535

Optical Properties

 EAT14WM4
Refractive index (1535nm)1.5241.528
Refractive index (d 589.3nm)1.5321.536
Abbe value6666
dn/dT (10-6/℃) (20~100℃)-1.72-3

Thermal Specifications

 EAT14WM4
Transformation temp. (℃)556530
Softening temp. (℃)605573
Coeff.of linear thermal expansion (10-7/K) (20~100℃)8782
Coeff.of linear thermal expansion (10-7/K) (100~300℃)9596
Thermal Coeff.of optical path length (10-6/K) (20~100℃)2.91.4
Thermal conductivity (25℃) (W/mK)0.70.7

Other Specifications

 EAT14WM4
Density (g/cm3)3.062.83
Chemical durability
(weigh loss rate at 100℃ distilled water) (g/hr.cm2)
5282

Polishing Specification

Orientation Tolerance< 0.5°
Thickness/Diameter Tolerance±0.05 mm
Surface Flatness</8@632 nm
Wavefront Distortion</4@632 nm

Spectra

Er Yb Glass Eye Safe Wavelength/ Good Laser Generation Signal AmplificationEr Yb Glass Eye Safe Wavelength/ Good Laser Generation Signal Amplification

Er Yb Glass Eye Safe Wavelength/ Good Laser Generation Signal AmplificationEr Yb Glass Eye Safe Wavelength/ Good Laser Generation Signal Amplification

 

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