Tm:Ho:KYW Crystal | Thulium-Holmium Co-Doped Potassium Yttrium Tung...

Data sheet

Density	6.5 g/cm³
Materials	Tm:Ho:KYW Crystal

More info

Tm:Ho:KYW (Thulium-Holmium Co-Doped Potassium Yttrium Tungstate) Crystal offers superior laser performance in the 2μm range compared to Tm:KYW and Ho:KYW. The Tm³⁺ ions enhance absorption and efficiently transfer energy to Ho³⁺, which provides a higher emission cross-section and longer upper laser level lifetime. This results in stronger and broader polarized absorption and emission bands, improving laser efficiency and stability. Heeger Materials provides high-quality Tm:Ho:KYW Crystal for advanced laser applications.

Tm:Ho:KYW Crystal | Thulium-Holmium Co-Doped Potassium Yttrium Tungstate Crystal

Tm:Ho:KYW Crystal Properties

Absorption Peak Wavelength	802 nm
Absorption Cross-Section at Peak	7.6 × 10⁻²⁰ cm²
Absorption Bandwidth at Peak	~4 nm
Laser Wavelength	2060 nm
Lifetime of 5I7 Energy Level	1.8 ms
Emission Cross-Section @ 2056 nm	4.7 × 10⁻²⁰ cm²
Refractive Index @ 1040 nm	ng = 2.05, nm = 2.01, np = 1.97
Crystal Structure	Monoclinic
Density	6.5 g/cm³
Mohs Hardness	4-5
Thermal Conductivity	~3.3 Wm⁻¹K⁻¹
dn/dT	dnm/dT = -9.2 × 10⁻⁶ K⁻¹
Thermal Expansion Coefficient	αp = 1.83 × 10⁻⁶ K⁻¹, αm = 10.29 × 10⁻⁶ K⁻¹, αg = 15.94 × 10⁻⁶ K⁻¹
Typical Doping Level	5 at.% [Tm], 0.5 at.% [Ho]

Tm:Ho:KYW Crystal Specifications

Crystal Orientation	Ng-cut
Effective Aperture	>90%
Surface Dimension Tolerance	+0/-0.1 mm
Length Tolerance	±0.1 mm
Parallelism Error	<10 arcsec
Perpendicularity Error	<10 arcmin
Protective Chamfer	<0.1 mm at 45˚
Surface Quality	10-5 S-D
Surface Flatness	<λ/10 @ 632.8 nm
Coating	AR (R<0.5%) @ 802 nm + AR (R<0.2%) @ 2000-2100 on both faces
Laser Damage Threshold	>10 J/cm² @ 2060 nm, 10 ns

Tm:Ho:KYW Crystal Stock Dimensions

Face Dimensions	Length	End Face	Doping	Coating
3x3 mm	2 mm	Right-angle cut	Tm 5%, Ho 0.5%	AR/AR @ 802 nm + 2000-2100 nm
3x3 mm	2 mm	Brewster angle	Tm 5%, Ho 0.5%	Uncoated

Tm:Ho:KYW Absorption and Emission Curve

Tm:Ho:KYW Crystal Key Features

Large and broad polarized absorption and emission bands
Efficient energy transfer from Tm³⁺ to Ho³⁺
High doping concentration with low concentration quenching
Custom crystals available upon request

Tm:Ho:KYW Crystal Applications

2 μm Remote Sensing Lasers: Used in LIDAR technology for atmospheric monitoring, environmental sensing, and long-range detection.
Medical and Metrology Applications: Utilized in laser-based medical treatments and precision measurement systems.
Mid-Infrared Optical Parametric Oscillators (OPOs) Pump Source: Serves as an efficient pump source for generating mid-IR wavelengths.
High-Efficiency Solid-State Lasers: Enables low-threshold, high-power laser systems for industrial and research applications.
Defense and Aerospace Technologies: Supports applications in laser designation, free-space optical communication, and remote spectroscopy.

Tm:Ho:KYW Crystal Packing And Shipping

Tm:Ho:KYW (Thulium-Holmium Co-Doped Potassium Yttrium Tungstate) 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.

Where to Buy Tm:Ho:KYW Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Laser Crystals products including Tm:Ho:KYW (Thulium-Holmium Co-Doped Potassium Yttrium Tungstate) 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.

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