1535nm Er,Yb phosphate glass

Model: GLASS-1535-LD

Short Description:

The erbium doped concentration of the LD pumped laser glass is 0.25cm³～1.3cm³, and the light output energy ranges from microjoule to millijoule.Er, Yb co-doped phosphate glass, with wider wavelength tuning, lower RIN and narrower laser linewidth, higher conversion efficiency and very wide pump band. It is used to make optical waveguide amplifiers and lasers. The ideal material can achieve 1535nm laser output. As a 1535nm eye-safe radiation source pumped by laser diodes, it can emit eye-safe 1535nm laser radiation, which can be directly used for laser ranging and telecommunication. Recently, it has been used in optical fiber communication to replace EDFA because of more advantages.

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Technical Parameter

Product Tags

Parameters

Type#	EG-102
Wavelength of laser	1535nm
Concentrations	0.25cm³～1.3cm³
Cross section for stimulated emission (10 -20 cm 2 )	0.8
Fluorescent lifetime (ms)	9.4-9.8
Laser Parameters
Cross section for stimulated emission (10 -20 cm 2 )	0.8
Fluorescent lifetime (ms)	9.4-9.8
Center lasing wavelength (nm)	1535
Optical Parameters
Refractive index （ 1535nm ）	1.56
Refractive index (d 589.3nm)	1.53
Abbe value	66
dn/dT (10 -6 /ºC) (20~100ºC)	-3
Thermal Parameters
Transformation temp. (ºC)	520
Softening temp. (ºC)	565
Thermal conductivity (25ºC) (W/m. K)	0.75
Coeff. of linear thermal expansion (10 -7 /K)	60
Thermal Coeff. Of optical path length(10 -6/K)	1.2
Other Parameters
Density (g/cm 3 )	3
Chemical durability (weigh loss rate at 100ºC distilled water) (μg/hr.cm 2 )	1.536
Polishing Specifications
Orientation Tolerance	0.5º
Thickness/Diameter Tolerance	±0.05mm
Surface Flatness	＜λ/8@632nm
Wavefront Distortion	＜λ/4@632nm
Surface Quality	10-5
Parallel	10"
Perpendicular	15′
Clear Aperture	>90%
Chamfer	<0.1x45º
Maximum dimensions	dia(3-12.7) (3-150)mm²