High-power 2-20µm IR attenuator
ZnSe Attenuator | 2-20 µm Broadband, 40/60 R/T Ratio
Premium CVD ZnSe attenuators for 2-20µm broadband laser power control. High damage threshold & 40/60 R/T ratio. Request custom specs from iroptical today.
Product Overview
The iroptical CVD ZnSe attenuator is engineered for high-power infrared laser applications and optical signal attenuation across the 2 µm to 20 µm broadband spectrum. Manufactured from optical-grade CVD Zinc Selenide, this attenuator features low bulk absorption and high thermal stability, making it ideal for CO2 laser systems, thermal imaging calibration, and broad-spectrum IR beam control. Operating reliably at angles of incidence from 15 degrees to 45 degrees, it provides a stable 40/60 (R/T) split ratio for precise energy regulation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Material | CVD Zinc Selenide (ZnSe) |
| Spectral Operating Range | 2 µm to 20 µm |
| Clear Aperture | Diameter 40.0 mm |
| Substrate Thickness | 3.0 mm |
| Operating Angle of Incidence (AOI) | 15° to 45° |
| Reflection / Transmission Ratio | 40/60 ± 25% at 2 to 20 µm |
| Surface Parallelism | less than 1 arcmin |
| Surface Quality | 60-40 scratch-dig |
Primary Applications
Due to its broad transmission range and high damage threshold, this attenuator is widely deployed in demanding photonic and industrial setups:
High-power CO2 laser power attenuation and optical sampling using precision ZnSe optics.
Thermal imaging calibration and multi-spectral infrared sensing setups requiring broadband IR attenuators.
Beam profiling, optical attenuation, and beam splitting in FTIR spectroscopy instruments.
Laser material processing research utilizing high-end infrared optical components.
Customization & Manufacturing Capabilities
To support prototype development and OEM integration, iroptical offers comprehensive customization options tailored to your optical design requirements:
Dimensions & Shapes: Custom clear apertures, rectangular plates, or custom-edge beveling.
Coatings: Custom anti-reflection (AR) or partial-reflection coatings tuned to specific infrared bands.
Mounting: Unmounted elements or factory-mounted housings in anodized aluminum rings.
Engineering Support & Purchasing
Managing high-power infrared beams without introducing optical distortion or thermal lensing is critical for system stability. iroptical combines world-class manufacturing precision with extensive in-stock selections and reliable lead times. Whether you require standard inventory items or custom fabrication, our technical team is prepared to assist your evaluation.
Contact our application engineers today at sales@iroptical.com or request a quote directly through our website.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.