Name: Cobalt Spinel Crystal | Co: Spinel Crystal
Brand: Heeger Materials Inc
SKU: HM2879

Data sheet

Density	3.58 g/cm³
Materials	Co: Spinel Crystal

More info

Cobalt Spinel (Co:Spinel) Crystal is an advanced passive Q-switch material designed for lasers emitting in the 1.2 µm to 1.6 µm wavelength range. It has a high absorption cross-section, allowing efficient Q-switching in Er:Glass lasers pumped by flash lamps or diode lasers without requiring intracavity focusing. With negligible excited-state absorption, Co:Spinel enables high-contrast Q-switching performance, achieving an initial-to-saturation absorption ratio greater than 10. These properties make it an excellent choice for compact, high-reliability laser systems. Heeger Materials provides high-quality Cobalt Spinel Crystal with stable performance for various laser applications.

Cobalt Spinel Crystal | Co: Spinel Crystal

Cobalt Spinel Crystal Technical Properties

Specification note: Quote details should include Co:Spinel material, wavelength range, absorption or initial transmission, dimensions, optical aperture, surface quality, coating, parallelism and quantity.

Crystal Structure	Cubic Structure
Density	3.58 g/cm³
Thermal Expansion Coefficient	6.14 × 10⁻⁶ K⁻¹
Thermal Conductivity	17 W/m·K
Mohs Hardness	8
Refractive Index	1.6 - 1.75

Cobalt Spinel Crystal Spectral and Laser Properties

This table outlines the key parameters and spectral properties of Co2+:MgAl2O4 material, along with its applicable wavelength ranges and characteristics when combined with different laser crystals. The data presented helps assess the material's performance in a variety of laser applications (particularly nanosecond lasers), including ground state absorption, excited state absorption, saturation absorption dynamics, and compatibility with laser crystals.

Material	σgsa @1.54 μm (cm²)	σesa @1.54 μm (cm²)	τsa (ns)	Laser Crystal	λlaser (μm)	σgsa/σem
Co²⁺:MgAl₂O₄	3.5 × 10⁻¹⁹	0.1 × 10⁻¹⁹	220-350	Nd:YAP	1.34	1.5
				Nd:KGW	1.35	4
				Nd:YAG	1.44	12
				Er:glass	1.54	40

Cobalt Spinel Crystal Specifications

Initial Transmittance	50-99% @ 1535 nm
Initial Transmission Difference	±1% (greater than 80%)
Clear Aperture	>90%
Face Dimension Tolerance	+0/-0.1 mm
Parallelism Error	<20 arcsec
Perpendicularity Error	<10 arcmin
Protective Chamfer	<0.1 mm at 45˚
Surface Quality	20-10 S-D
Surface Flatness	<λ/8 @ 632.8 nm
Wavefront Distortion	<λ/4 @ 632.8 nm
Coating	AR (R<0.15%) @ 1535 nm
Laser Damage Threshold	>8 J/cm² @ 1535 nm, 10 ns

Cobalt Spinel Crystal Stock Types

End Face Dimensions	Initial Transmittance	Anti-Reflective Coating
3x3 mm	70%, 80%, 85%, 90%, 92%, 95%, 97%	AR/AR @ 1535 nm,
3x3 mm	98.5@1522nm	HT@976NM+HR@1522NM/HT@976NM+Ar@1522NM
5x5 mm	70%, 80%, 85%, 90%, 92%, 95%, 97%	AR/AR @ 1535 nm

Cobalt Spinel Crystal Absorption and Emission Curve

Cobalt Spinel Crystal Key Features

Narrow wavelength range, covering 1.3 μm to 1.6 μm
High laser-induced damage threshold
Custom crystals available upon request

Cobalt Spinel Crystal Applications

Passive Q-switching for 1.2-1.6 um laser systems.
Compact pulsed lasers, range-finding and research laser cavities.
Optical components where controlled absorption and polished crystal faces are required.

Passive Q-Switching for Er:Glass Lasers: Enables efficient Q-switching at 1.54 µm for compact laser systems.
Eye-Safe Laser Applications: Supports the development of lasers in the 1.2–1.6 µm range for medical and defense use.
High-Contrast Q-Switching: Provides a high small-signal to saturated absorption ratio for stable laser operation.
Diode and Flashlamp-Pumped Lasers: Compatible with various laser pumping methods without requiring intracavity focusing.
Telecommunications and Industrial Uses: Used in fiber laser systems and precision laser machining applications.

Cobalt Spinel Crystal Packing And Shipping

Packaging note: Optical crystals should be packed in clean, cushioned containers with coating, surface-quality and orientation labels protected from abrasion.

Cobalt Spinel (Co:Spinel) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Cobalt Spinel Crystal | Co: Spinel Crystal Packing

Where to Buy Cobalt Spinel Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Laser Crystals products including Cobalt Spinel (Co:Spinel) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

Inquiry to Heeger Materials

Items marked with an asterisk (*) are required.

Privacy Information:

Heeger Materials respects your privacy, and we will NOT sell or provide your personal data to other third parties, or allow them to use your personal data for their own purposes. However, we would like to send you information from time to time by mail or email about our products and special offers in addition to the interest categories you've selected above. Read our Privacy Policy