Precision IR Emitters And Detectors For Gas Analysis And Monitoring

Global demand for environmental sensing technologies is expanding due to stricter regulations in air quality, emissions, medical safety, and industrial process control. Accurate, real-time detection of gases such as CO₂, CH₄, and anesthetic compounds is essential across diverse applications including emissions monitoring, indoor air quality management, anesthetic and respiratory gas analysis, and portable gas detection. Meeting these requirements demands infrared (IR) components that are compact, stable, and highly reliable.

Opto Diode, with over 40 years of photonics expertise, addresses this need through a portfolio of PbS and PbSe detectors paired with high-stability IR emitters. These components enable the design of non-dispersive infrared (NDIR) systems with excellent selectivity, sensitivity, and long-term stability. Their IR emitters, available in steady-state or pulsed versions with sapphire or CaF₂ windows, deliver consistent radiant output ideal for gas absorption spectroscopy. The compact BXF-2 PbSe detector provides strong responsivity in the 1–5 µm region, making it particularly suited for portable or space-constrained sensing systems.

When paired, Opto Diode’s emitters and detectors offer trace-level gas detection, superior signal-to-noise ratio (SNR), and long-term calibration stability. Additional system-level design considerations—such as modulation strategies, filter selection, path length optimization, and thermal management—further enhance performance. Opto Diode also provides customization, rigorous qualification testing, and U.S.-based ITAR-compliant manufacturing to ensure quality and reliability.

By combining proven performance with integration flexibility, Opto Diode’s IR sensing solutions empower OEMs to develop advanced, compact, and durable systems for mission-critical gas analysis across medical, industrial, and environmental markets.