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Er,Yb:Phosphate Glass

Features:
●Dopants:Er3+, Yb3+
●Activator:Er3+
●Host:Phosphate glass
● Wavelength of laser:1535nm
● Concentrations:0.25~1.3
● Cross section for stimulated emission:0.8
● Fluorescent lifetime (ms):9.4-9.8
Applications:
● Diode pumped lasers for rangefinders
● Photonic Crystal Fiber(PCF) cores
● Waveguide laser seeds and amplifiers
● Diode pumped laser seeds for LIBS
● Laser sources for wind coherent doppler lidar
● Modelocking GHz laser sources for telecomms

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The erbium doped concentration of the LD pumped laser glass is 0.25~1.3×1020cm-³, which assures the laser rods or slabs able working under different optical path designs to get pulse output energy from 0.10mJ to 10mJ.Er3+, Yb3+ 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 amplifiersand 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.Er-Yb Doped Waveguide Amplifier (EYDWA) is widely researched as a frontier technology.

LD pumped Er:Glass laser rangefinder transceiver modules usually are embedded into surveillance, monitoring and detection systems of aircrafts such as airdrones,UAV and helicopters etc...as well as laser-guided weapons because of compact sizes and smaller weight,and also golf and outdoor sports handheld laser rangefinders.

Model

DP1535

Dopant

Er3+,Yb3+

Host

Phosphate glass

Laser Parameters

Cross section for stimulated emission (10 -20 cm2)

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 )

82

Polishing Specifications

PROPERTIES

Value

Orientation Tolerance

0.5º

Thickness/Diameter Tolerance

±0.05mm

Surface Flatness

λ/8@632nm

Wavefront Distortion

λ/4@632nm

Surface Quality

10-5 scratch-dig

Parallel

10"

Perpendicular

15′

Clear Aperture

>90%

Chamfer

<0.1x45º

Maximum dimensions

Rods (Ф3-12.7mm)

Slabs (3-150)mm²

Note:All data are basically only for reference,upgrading products go on.

When ordering erbium  glass cylinderal,square laser rods,slabs and zigzag slabs please specify the following,

W & H: Block  Width & Height (mm)

L: Block Length (mm)

D: Doping (%)

F: Finish (P=Plane, W=Wedge, B=Brewster)

C: Coating Requirements

Pump Laser diode,collimating lens,co:spinel passive Q-switch crystal,beam expander,narrow band filter@1535nm,T>90% can be supplied together as kits upon requirement.

OEM cylinderal/square rods,slabs,plates,discs for laser gain media,PCF(Photonic Crystal Fiber),waveguide fabrications can be customised as drawings,cladding phosphate glass for PCF rod-in-tube fabrication is available,too.


No previous NEXT:Er,Cr,Yb:Phosphate Glass

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CONTACT US

Contact: John Jay Woo

Phone: +86-13982280204

E-mail: digco(at)digco-techs(dot)com

Whatsapp:+86-13982280204

Add: No.2339,South Secrion of Tianfu Avenue,Tianfu New Area,Chengdu 610213,China