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Nd:Cr:YAG Crystal

POC-OC-122462-Nd:Cr:YAG Crystal

  • Optimized for high energy efficiency and thermal stability.
  • Enhanced optical uniformity and UV radiation resistance.
  • Continuous, pulsed, Q-switched, and frequency-doubled laser operation capabilities.
  • Excellent for solar-pumped and space-based laser systems.
  • High power output and superior beam quality.

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

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Nd:Cr:YAG Crystal Material General Description

The Nd:Cr:YAG (Neodymium, Chromium-doped Yttrium Aluminum Garnet) crystal is a well-established laser material that combines the advantages of both neodymium and chromium ions. Chromium ions enhance the absorption efficiency of pump light, particularly in solar-pumped systems, while neodymium ions are responsible for efficient lasing. This crystal offers exceptional thermal and optical properties, including high thermal conductivity and resistance to ultraviolet-induced damage. Nd:Cr:YAG Crystal is suitable for continuous, pulsed, and Q-switched laser operations with high power output and stability.

The inclusion of Cr³⁺ ions mitigates fluorescence quenching, ensuring efficient energy transfer and minimal power loss. Nd:Cr:YAG is particularly favored for its robustness in harsh environmental conditions, making it ideal for aerospace and solar-pumped applications. With a working wavelength of 1064 nm and excellent optical uniformity, it is widely used in various high-precision laser systems.

 

Nd:Cr:YAG Crystal General Application Examples

  • Solar-Pumped Laser Systems: Ideal for converting sunlight into laser energy, Nd:Cr:YAG Crystal  is widely used in high-power solar-pumped lasers for space and terrestrial applications.
  • Space Laser Systems: The crystal’s stability in extreme conditions and efficient energy conversion make it suitable for spaceborne laser technologies.
  • Defense and Security: Its ability to operate in Q-switched and continuous modes makes it invaluable for target ranging, missile guidance, and laser weapon systems.
  • Industrial Lasers: Commonly used in high-power cutting, welding, and marking due to its excellent thermal and mechanical properties.
  • Scientific Research: Nd:Cr:YAG Crystal  is frequently used in experiments requiring high-energy laser pulses and stable output for spectroscopy and material analysis.

Chemical and Structural Properties

Property

Value

Chemical Formula

Nd³⁺:Cr³⁺:Y₃Al₅O₁₂

Melting Point

1970°C

Mohs Hardness

8-8.5

Thermal Conductivity

10-14 W/m·K

Density

4.56 g/cm³

Working Wavelength

1064 nm

Optical, Laser and Nonlinear Optical Properties

Property

Value

Pump Source

Solar radiation, Arc Lamp, LD

Laser Emission Wavelength

1064 nm

Mode of Operation

Continuous, Pulsed, Q-switched

Beam Quality

Excellent

Energy Efficiency

High

Standard Fabrication Specifications

Specification

Value

Length Tolerance

±0.1 mm

Parallelism

<20 arcseconds

Perpendicularity

<10 arcminutes

Surface Quality

10-5 Scratch/Dig

Flatness

<λ/10 @ 632.8 nm

Chamfer

<0.1 mm @ 45°

Spectrum Transmission Curve:

  • Please contact for spectral data; specific absorption and emission curves will be provided upon request.

Coating Specification:

 

  • Standard Coating: AR coating optimized for 1064 nm wavelength.
  • Customized Coating: Available upon request for specific applications.
  • 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 producing high-quality laser crystals tailored to demanding applications. POC’s advanced manufacturing techniques ensure high optical uniformity, thermal stability, and durability. With decades of expertise, POC delivers reliable crystal solutions for aerospace, defense, industrial, and scientific sectors.

Key Capabilities:

  • Custom design and fabrication.
  • Fast turnaround times with high precision.
  • Comprehensive technical support for advanced laser applications.

Standard Products

Dimensions (mm)

Length

Coating

Doping

Price (USD)

3 x 3

5

AR @ 1064 nm

Nd³⁺ 1.0%

400

3 x 3

10

AR @ 1064 nm + Custom

Nd³⁺ 1.5%

450

Custom

Custom

Custom

Custom

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POC-OC-122462-Nd,Cr YAG Crystal

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