Ho:YAG Laser Crystal | 2.1 μm Mid-Infrared Solid-State Laser Material

Ho:YAG (Holmium-doped Yttrium Aluminum Garnet) crystal is a solid-state laser gain medium widely used for mid-infrared laser systems, operating primarily at ~2.09–2.12 μm. Due to its strong absorption in water and biological tissue, Ho:YAG lasers are extensively applied in medical surgery, lithotripsy, urology, and minimally invasive procedures, as well as in LIDAR, materials processing, and scientific research.

Ho:YAG crystals are typically Tm:YAG laser pumped (around 1.9 μm), enabling efficient energy transfer and stable laser operation. Compared with other mid-IR laser crystals, Ho:YAG offers high slope efficiency, good thermal stability, and reliable long-term performance, making it suitable for both pulsed and continuous-wave (CW) laser designs.

Our Ho:YAG crystals are grown with strict control of dopant concentration, crystal orientation, and optical quality. Precision polishing and optional AR coatings ensure excellent beam quality and compatibility with medical-grade and industrial laser systems. Custom dimensions and specifications are available for OEM and research applications.

Key Features & Properties

• Material: Ho³⁺:Y₃Al₅O₁₂ (Ho:YAG)
• Emission wavelength: ~2090–2120 nm
• Pump wavelength: ~1900 nm (Tm:YAG laser)
• High efficiency mid-IR laser output
• Strong absorption in water and biological tissue
• Good thermal conductivity and mechanical stability
• Suitable for pulsed and CW operation
• Medical-grade optical quality available

Typical Applications

• Medical lasers (urology, lithotripsy, soft tissue surgery)
• Mid-infrared solid-state lasers
• LIDAR and remote sensing
• Materials processing and cutting
• Scientific and defense research
• Industrial and OEM laser systems