Cryogenic Infrared Filters Microwave RF Millimeter Wave

Features:

Cryogenic Stability
Exceptional Optical Performance
High Sensitivity

Applications:

Astronomical Detection
Military and Aerospace
Quantum Technology

CONTACT NOW

Cryogenic Infrared Filters are specialized optical filters designed for extreme low-temperature environments. Utilizing advanced materials and coating technologies, these filters deliver exceptional transmission efficiency and sharp cut-off characteristics, making them ideal for infrared astronomy, quantum computing, superconducting detectors, and space remote sensing applications.

Characteristics:

1. Cryogenic Stability: Reliable performance at 5K temperatures.
2. High Transmission: Peak transmission for signal fidelity.
3. Sharp Cut-Off: Transition bandwidth of center wavelength.
4. Low Thermal Emission: Minimized self-radiation interference.
5. Robust Construction: Thermal shock resistant design.

Application:

1. Space Astronomy: Band selection for JWST-like telescopes.
2. Ground-Based Observation: Paired with LN2/LHe-cooled detectors.
3. Quantum Experiments: Precision filtering for SSPDs.
4. Defense Systems: IR signal extraction in early warning satellites.
5. Scientific Research: Cryogenic FTIR spectroscopy systems.

Qualwave supplies Cryogenic Infrared Filters hat are stable over long periods of time at extreme low temperatures of up to 5K. The rf Cryogenic Infrared Filters are widely used in many applications.

Part Number	Attenuation (dB)	Connectors	Operating Temperature (Max.)
QCIF-0.3-05	0.3@1GHz, 1@8GHz, 3@18GHz	SMA	5K (-268.15℃)
QCIF-0.7-05	0.7@1GHz, 5@8GHz, 6@18GHz	SMA	5K (-268.15℃)
QCIF-1-05	1@1GHz, 24@8GHz, 50@18GHz	SMA	5K (-268.15℃)
QCIF-3-05	3@1GHz, 50@8GHz, 50@18GHz	SMA	5K (-268.15℃)