Home Companies Nanjing Crylink Photonics Co.,Ltd

Erbium Doped Glass / Phosphate Glasses For LD Pump Stimulated Emission Cross Section

Active Member

Contact Us

[China]

Address: No.200, Zgaoxian Road, Jiading Zone, Shanghai, China

Contact name:sales

Nanjing Crylink Photonics Co.,Ltd

Erbium Doped Glass / Phosphate Glasses For LD Pump Stimulated Emission Cross Section

Country/Region	china
City & Province	shanghai shanghai
Categories	Rare Earth & Products

Product Details

Erbium Doped Phosphate Glasses For LD Pump

Er3+/Yb3+ co-doped phosphate glass — as the 1540nm eye-safe radiation sources pumped by LD which can emit eye-safe 1540nm laser radiation directly used in laser ranging finder and telecommunication communication
As an eye-safe wavelength laser, 1540um ,Er3+/Yb3+ co-doped phosphate glass lasers have attracted much attention for their compactness and low cost, such as laser generation and signal amplification because the wavelength of 1540nm is just at the position of the eye-safe and the fiber optic communication window. 1540nm lasers have used in ranging finder, radar, target recognition. Er3+/Yb3+ co-doped phosphate glass cooperate with passive Q-Switch crystal -co:spinel to get 1540nm pulse solid-state laser.

Feature

Stimulated emission cross section

Narrow fluorescence line

High pump efficiency

Short fluorescence lifetime

Low oscillation threshold

Using Glass

WM4: Erbium phosphate glass for ion-exchange purpose;

EAT14: Yb3+, Er3+ co-doped phosphate glass, which is applicable in high repetition rate(1-6Hz) laser diode pumped 1535 laser. High Yb3+ doping can be realized in this EAT14 glass.

波导放大器.gif

Waveguide amplifier

@1550nm: Fiber has minimum dispersion and small loss

光纤激光器结构.png

LD泵浦固体激光器.jpg

LD pumped solid-state laser

LD泵浦材料.png

人眼安全激光测距仪.jpg

Eye-safe Laser Rangefinder

Direct output 1.54μm human eye laser, suitable for handheld or vehicle laser rangefinder

人眼安全激光器.gif

Properties	EAT14	WM4
Laser Specifications
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 Specifications
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
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
Density (g/cm3)	3.06	2.83
Chemical durability (weigh loss rate at 100℃ distilled water) (μg/hr.cm2)	52	82