Er Yb Laser Glass Wide Absorption Band For Fiber Optic Communication Window

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: Er Glass (Er Yb: Glass) Feature: Wide Absorption Band
Thermal Conductivity (25℃) (W/mK): 0.7 Abbe Value: 66
High Light:

erbium doped glass


er yb glass


Er Yb Laser Glass

Product Description



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.


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


  • Wide absorption band
  • Long fluorescence lifetime
  • High optical quality
  • Safety for eye
  • High slope efficiency

Contact Details

Phone Number : +8618699681379