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Er:Yb:Glass

POC-OC-122449-Er:Yb:Glass

  • Highly efficient laser performance with strong absorption and emission characteristics.
  • Broad lasing wavelength of 1535 nm, ideal for telecom and laser range-finding applications.
  • Low thermal expansion coefficient ensures high operational stability.
  • High chemical durability and resistance in aqueous environments.
  • Customizable doping concentrations and fabrication specifications to meet specific requirements.

Customizable Components Available for This Material to Meet Your Specific Needs!

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.Er:Yb:Glass Material General Description

Er:Yb:Glass is a co-doped phosphate-based laser glass designed for applications requiring efficient laser operation at a wavelength of 1535 nm. The material combines the properties of Erbium (Er³⁺) and Ytterbium (Yb³⁺) ions to achieve a strong pump absorption and efficient energy transfer. Er:Yb:Glass is widely used in fiber optic communications, range finding, and other laser-based applications due to its high thermal and chemical durability.

The presence of Yb³⁺ ions facilitates energy transfer to Er³⁺, improving pump utilization efficiency and enabling compact and reliable laser systems. The material also offers excellent optical properties such as low scattering losses and minimal thermal distortion.

 

Er:Yb:Glass General Applications and Examples

Er:Yb:Glass is highly versatile and finds applications in diverse fields:

  1. Telecommunications: Er:Yb:Glass Used in fiber optic amplifiers and transmitters for high-speed, long-distance data transfer at eye-safe wavelengths.
  2. Range Finders: Er:Yb:Glass Employed in military and industrial laser range-finding systems due to its precise and efficient performance.
  3. LIDAR Systems: Facilitates accurate measurement and 3D imaging in environmental monitoring and autonomous vehicle technology.
  4. Medical Lasers: Applied in dermatology, ophthalmology, and surgery for its eye-safe wavelength and non-invasive precision.
  5. Scientific Research: Ideal for high-power laser systems in spectroscopy and other analytical technologies.

Chemical and Structural Properties

Parameter

Unit

Er,Yb:Glass

Er,Yb,Cr:Glass

Transition Temperature

°C

566

455

Softening Temperature

°C

605

493

Linear Thermal Expansion

10^-7/°C

87

103

Thermal Conductivity

W/m·K

0.7

0.7

Chemical Durability

μg/hr·cm²

52

103

Density

g/cm³

3.06

3.1

Laser Wavelength Peak

nm

1535

1535

Emission Cross Section

10^-20 cm²

0.8

0.8

Fluorescence Lifetime

ms

7.7-8.0

7.7-8.0

Refractive Index @ 1535nm

–

1.532

1.539

Thermal Optical Coefficient

10^-6/°C

-1.72

-5.2

Optical, Laser and Nonlinear Optical Properties

Parameter

Value

Peak Emission Wavelength

1535 nm

Absorption Cross Section

0.8 × 10^-20 cm²

Fluorescence Lifetime

7.7–8.0 ms

Refractive Index @ 1535nm

1.532

Thermal Expansion Coefficient

87 × 10^-7/°C

Standard Fabrication Specifications

Parameter

Specification

Diameter Tolerance

± 0.05 mm

Length Tolerance

± 0.5 mm

Surface Quality (Scratch/Dig)

10-5

Flatness

λ/8 @ 632 nm

Wavefront Distortion

λ/10 @ 632 nm

Parallelism

<10 arc seconds

Perpendicularity

<5 arc minutes

Spectrum Transmission Curve:

Detailed spectrum transmission data is available upon request. The material demonstrates strong absorption in the pump wavelength range of 1535 nm and low losses across the operational spectrum.

Coating Specification:

Custom anti-reflective (AR) coatings can be applied for specific wavelength ranges, including AR coatings optimized for 1535 nm

  • Adhesion Test Compliant with MIL-C-675C military standards, an adhesion test involved applying a tape that meets LT-90 specifications onto the lens film layer. The tape was affixed fully and then removed vertically. This procedure was performed three times, resulting in no blistering or peeling.
  • Temperature Test In line with MIL-C-675C specifications, test pieces were subjected to temperatures of -62±1℃ and 71±1℃. After maintaining them at room temperature (16℃~32℃) for two hours, the adhesion test was repeated, confirming no film detachment.
  • Abrasion Resistance Test Conforming to MIL-C-675C and CCC-C-440 standards, the abrasion resistance test involved a gauze tester applying a minimum force of 1.0 lbs (0.45 kg) to the film. This was repeated 25 times with gauze widths of 1/4 inch (6.4mm) and 3/8 inch (9.5mm), ensuring no damage occurred to the film surface.
  • Humidity Test Under MIL-C-675C criteria, the test piece was placed in a controlled temperature and humidity chamber set to 49 ±2℃ and 95%~100% humidity for 24 hours. The film remained intact, with no peeling, scratches, or other defects.
  • Solvent and Cleaning Testing Following MIL-C-675C specifications, test pieces were exposed to room temperature conditions (16℃~32℃) and tested with acetone and alcohol for at least 10 minutes each. After air drying and subsequent cleaning with a cotton cloth soaked in alcohol, the film surface showed no signs of peeling or scratches.
  • Salt Spray Test After 100 hours in a 35°C environment with a 5% saltwater concentration, the film showed no signs of damage.

POC Strength and Capabilities

Photonics On Crystals (POC) specializes in manufacturing high-quality Er:Yb:Glass with state-of-the-art facilities. Our technical team ensures precision in doping concentrations and strict adherence to quality standards. We also provide customized designs to meet unique application needs, ensuring optimal performance and reliability.

Standard Products

Dimensions

Length

Doping Concentration

Coating

Price (USD)

3 x 3 mm

6 mm

Standard

Uncoated

500

3 x 3 mm

10 mm

Customized

AR @ 1535 nm

700

Custom

Custom

Customized

Upon request

Upon request

POC-OC-122449-Er,Yb Glass

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