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| Categories | Laser Glass |
|---|---|
| Place of Origin: | China |
| Brand Name: | CRYLINK |
| Certification: | Iso9001 |
| MOQ: | 1 Pieces |
| Price: | negotiation |
| Packaging Details: | Carton |
| Delivery Time: | 3-4 weeks |
| Payment Terms: | TT |
| Supply Ability: | 100 pieces /month |
| Model Number: | CRYLINK-Er Yb Glass |
| Name: | Er Glass |
| Apply: | For Laser Rangefinder |
| Related Products: | CaCO3 Birefringent Crystals |
| Certify: | Iso9001 |
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
| EAT14 | WM4 | |
| Cross section for stimulated emission (10-20cm2) | 0.8 | 0.75 |
| Fluorescent lifetime (ms)* | 7.7-8.0 | 7.7-8.2 |
| Center lasing wavelength (nm) | 1535 | 1535 |
Optical Properties
| EAT14 | WM4 | |
| Refractive index (1535nm) | 1.524 | 1.528 |
| Refractive index (d 589.3nm) | 1.532 | 1.536 |
| Abbe value | 66 | 66 |
| dn/dT (10-6/℃) (20~100℃) | -1.72 | -3 |
Thermal Specifications
| EAT14 | WM4 | |
| Transformation temp. (℃) | 556 | 530 |
| Softening temp. (℃) | 605 | 573 |
| Coeff.of linear thermal expansion (10-7/K) (20~100℃) | 87 | 82 |
| Coeff.of linear thermal expansion (10-7/K) (100~300℃) | 95 | 96 |
| Thermal Coeff.of optical path length (10-6/K) (20~100℃) | 2.9 | 1.4 |
| Thermal conductivity (25℃) (W/mK) | 0.7 | 0.7 |
Other Specifications
| EAT14 | WM4 | |
| Density (g/cm3) | 3.06 | 2.83 |
| Chemical durability (weigh loss rate at 100℃ distilled water) (g/hr.cm2) | 52 | 82 |
Polishing Specification
| Orientation Tolerance | < 0.5° |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Surface Flatness | </8@632 nm |
| Wavefront Distortion | </4@632 nm |
Spectra
|
Wide Pump Band Laser Glass / Er Glass With Various Ions Doping Iso9001
N31 Nd Phosphate Glass For High Power Laser Facility High Energy Storage
N41 Nd Laser Glass Low Nonlinear Refractive Index Good Thermal Characteristics
N51 Nd Glass High Energy Storage Large Stimulated Emission Cross Section
NAP Nd Laser Glass High Thermal Shock Resistance Properties High Average Power
CRYLINK NF Nd Glass Low Nonlinear Coefficient High Fluorescence Lifetime
NSG2 Nd Laser Glass With Neodymium Larger Stimulated Emission Cross Section
SFG10 Filter Glass / Silicate Glass High UV Cutoff Infrared Cut Off Capability
Er Yb Laser Glass Wide Absorption Band For Fiber Optic Communication Window
Cr Yb Erglass 1970°C Melting Point 800 W/M Thermal Shock Resistance Parameter
