Er Yb Co-doped Phosphate Glass

Specifications

Type Of Crystal: TeO2
Crystal Diameter: 10 mm
Crystal Length: 8.2 mm
AR Coating: One side
Cross Section For Stimulated Emission: 0.8 (10-20cm2)
Fluorescent Lifetime: 7.7-8.0 (ms)
Center Lasing Wavelength: 1535 (nm)
Refractive Index (1535nm): 1.524
Transformation Temp: 556 (℃)
Coeff.of Linear Thermal Expansion: 87 (10-7/K) (20~100℃)
Thermal Conductivity: 0.7 (25℃) (W/mK)
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Features


  • Eye-Safe Wavelength: The Er,Yb co-doped phosphate glass emits laser radiation at 1540nm, making it safe for eye exposure and ideal for applications like laser ranging and telecommunications.

  • Efficient Energy Transfer: Utilizes Yb3+ ions for energy absorption and transfer, leading to efficient excitation of Er3+ ions, which then emit the desired fluorescence.

  • Compact and Cost-Effective: The design of the laser is compact and low-cost, suitable for various industrial applications.

  • High Repetition Rate: The EAT14 glass variant supports high repetition rates (1-6Hz) for laser diode pumped 1535nm lasers.

  • Wide Absorption Band: Offers a broad absorption band, enhancing its utility in diverse laser applications.

  • Long Fluorescence Lifetime: Ensures sustained laser performance with a longer fluorescence lifetime.

  • High Optical Quality: The glass exhibits superior optical quality, crucial for precision applications.

  • High Slope Efficiency: Demonstrates high slope efficiency, improving overall laser performance.

Applications


  • 1535nm Eye-Safe Laser: Utilized for applications requiring eye safety, such as laser ranging and telecommunication.

  • Er Glass Fiber Amplifier: Enhances signal strength in fiber optic communications.

  • Range Finder: Used in devices for measuring distance by calculating the time taken for a laser beam to reflect back from a target.

  • Target Recognition: Employed in systems designed to identify and track targets, beneficial in defense and security applications.