Description

Items Notes：

• Size, mm: The first lists the dimensions of the crystal in millimeters; W*H*L(mm)
• θ, deg: The second represents the phase-matching angle θ in degrees. This is the angle at which phase matching occurs for nonlinear optical processes.
• φ, deg: The third represents the azimuthal angle φ in degrees. This angle specifies the orientation of the crystal axis in the plane perpendicular to the propagation direction.
• Coating: The fourth describes the coating applied to the crystal, specifying the wavelength range for which the coating is optimized (e.g., P/P @ 400-800 nm).

Description: Chromium-doped Yttrium Aluminum Garnet (Cr⁴⁺ ) Cr:YAG Crystal  is a highly efficient laser crystal known for its excellent optical properties and versatility. It is widely used as a passive Q-switch and saturable absorber in laser systems, making it ideal for a variety of applications including medical, industrial, and scientific research.

Physical and Optical Properties:

Property	Value
Working Wavelength Range, µm	0.8 – 1.2
Ground State Absorption Cross Section, cm²	5×10⁻¹⁸ (at 1.06 µm)
Excited State Absorption Cross Section, cm²	7×10⁻¹⁹ (at 1.06 µm)
Initial Transmittance, %	20 – 99
Transmission Tolerances	±2 %
Wavefront Distortion	< λ/8 @ 632.8 nm
Diameter Tolerances	+0.0 / -0.2 mm
Parallelism Error	< 30 arcsec
Perpendicularity	< 15 arcmin
Surface Quality	20 – 10 scratch & dig (per MIL-O-13830A)
Chamfer	0.1 mm @ 45°
AR Coating Reflectivity	< 0.2 % @ 1064 nm

Standard Specifications of Cr:YAG Crystal

Specification	Value
Nd Doping Level	0.8% or 1.1%
Orientation	<111> crystalline direction
Surface Quality	10 – 5 scratch & dig (MIL-PRF-13830B)
Surface Flatness	λ/10 at 633 nm
Parallelism	< 10 arcsec
Perpendicularity	< 5 arcmin for plano/plano ends
Diameter Tolerance	+0 / -0.05 mm
Length Tolerance	+1 / -0.5 mm
Clear Aperture	> 90 % of full aperture
Chamfers	0.1 mm at 45°
Coating	Both sides coated AR @ 1064 nm, R < 0.2%, AOI = 0 deg
Barrel Grooving	All dia 6.35, 8, 10, 12 mm rods with barrel grooving

Applications:

•  Passive Q-switching: Ideal for passive Q-switching in Nd, Nd , and other solid-state lasers.
• Saturable Absorbers: Used in laser systems to generate short pulses.
• Medical Devices: Employed in various medical laser devices for treatments and surgeries.
• Industrial Processing: Suitable for cutting, welding, and marking applications.
• Scientific Research: Utilized in research settings for various optical experiments and innovations.

Processing and Handling:

• Surface Protection: To maintain the integrity of Cr⁴⁺ crystals, a protective coating may be applied during handling and processing.
• Machining: Requires careful handling to avoid damage to the crystal structure during milling or other machining processes.

Why Choose Shape Optics on Cr:YAG Crystal?

At Shape Optics, we pride ourselves on our comprehensive expertise and advanced capabilities in the field of optical materials and components. Our commitment to quality and innovation has positioned us as a leader in the industry, serving a diverse range of applications from scientific research to industrial manufacturing.

• Advanced Manufacturing: Shape Optics utilizes state-of-the-art equipment and techniques to ensure the highest precision and quality in our products. Our manufacturing processes are designed to meet the stringent demands of modern optical applications.
• Customization: We understand that every project is unique. Shape Optics offers customized solutions tailored to meet the specific needs of our clients. Whether you require specific dimensions, coatings, or performance characteristics, we have the flexibility to deliver.
• Quality Assurance: Our rigorous quality control processes ensure that every product we deliver meets the highest standards of performance and reliability. Shape Optics is committed to continuous improvement and excellence in all aspects of our operations.
• Expertise and Support: With a team of highly skilled professionals, Shape Optics provides unparalleled technical support and expertise. Our team is dedicated to helping you achieve optimal results in your optical applications.
• Global Reach: Shape Optics serves clients worldwide, providing reliable and timely delivery of products. Our global network ensures that we can meet your needs wherever you are located.
• Sustainability and Responsibility: Shape Optics is committed to sustainable practices and responsible manufacturing. We strive to minimize our environmental impact while delivering high-quality optical solutions.

Cr:YAG Crystal  from Shape Optics represent the pinnacle of quality and performance in optical materials. With our advanced capabilities, commitment to quality, and customer-centric approach, Shape Optics is your ideal partner for all your optical needs. Explore the possibilities with our Cr⁴⁺ crystals and experience the Shape Optics difference.

For more information, please visit our website at Shape Optics or contact us directly to discuss your specific requirements.