Product Overview
The Art Photonics Fiber to LN-Cooled MCT Detector Coupler is a critical component for high-end Mid-Infrared (MIR) fiber optic systems. Standard room-temperature detectors often lack the sensitivity required for remote sensing via long-length fibers; this coupler bridges that gap by allowing the use of high-performance Liquid Nitrogen (LN) cooled Mercury-Cadmium-Telluride (MCT) detectors. By optimizing the focal match between the fiber numerical aperture and the detector element, it ensures minimal signal loss during photon transfer.This coupler is specifically engineered for use with Polycrystalline Infrared (PIR) and Chalcogenide fibers. Its robust mechanical design allows for precise XYZ alignment, ensuring that the infrared beam is perfectly centered on the small active area of the cooled detector. This setup is indispensable for laboratories performing trace gas analysis, fast kinetic studies, or remote process monitoring where signal integrity is the primary concern
Key Features
- Maximum Sensitivity: Enables the use of LN-cooled MCT detectors for remote fiber spectroscopy.
- Precision Alignment: Features adjustable mechanics for optimized focal spot positioning.
- Broad Mid-IR Compatibility: Designed for PIR-fibers (4–18 µm) and CIR-fibers (1.5–6 µm).
- Enhanced SNR: Significantly reduces noise compared to pyroelectric or thermopile fiber interfaces
- Modular Interface: Compatible with standard Dewar-style cooled detector housings.
Specifications
| Spectral Range | 1.5 µm – 18 µm (Fiber dependent) |
| Detector Type | LN-cooled MCT (standard Dewar) |
| Coupling Efficiency | > 85% |
| Alignment | XYZ micrometer adjustment |
| Connector Type | SMA-905 or FC/PC |