Buying Infrared Detectors

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Gentec Electro-Optics has pyroelectric thermal detectors with active areas from 1 to 9 mm diameter. They are suitable for room temperature operation with broad spectral response, high sensitivity and high speed (sub-nanosecond response times).

Lasers, Optics, Electronics. Made in Germany.

Ultrafast photodetectors from ALPHALAS are suitable for measuring optical waveforms with rise times starting from 10 ps and spectral coverage for the IR region up to 2600 nm have bandwidths from DC up to 30 GHz. Available configurations include free-space, fiber receptacle or SM-fiber-pigtailed options and have compact metal housings for noise immunity. For maximum flexibility, most models are not internally terminated. A 50 Ohm external termination supports the highest speed operation, while a high impedance load generates large amplitude signals.

Applications include pulse form and pulse width measurement, laser synchronization, mode beating monitoring and heterodyne measurements. Balanced photodiodes complement the large selection for these models.

Sophisticated Tools for Signal Recovery

See us at LASER World of Photonics 2025 in Munich, June 24–27 (hall A3, booth 538) and LASER World of Photonics 2025 in Munich, June 24–27 (booth A3.538)!

FEMTO offers a wide range of very low-noise infrared photodetectors. They offer bandwidths up to 2 GHz and gains up to approximately 10¹¹ V/W, resulting in measurement ranges from sub-pW to mW. The NEP reaches a minimum of 7.5 fW/√Hz using InGaAs photodiodes covering a wavelength range up to 1700 nm, with either a free space or fiber input (FC/PC, FC/APC). Many types and models are switchable in gain and bandwidth and can be controlled manually or remotely via PC. Customized models are available upon request.

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See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A2.237)!

Our Amplified MCT™ is a natural fit with DRS Daylight’s pulsed mid-IR lasers. It is a fully integrated receiver with embedded IR detector, low-noise amplifier, and temperature controller into one compact package.

Features:

• room-temperature operation, with a two-stage TEC for cooling to 245 K
• broad mid-IR spectral response of 4–12 µm
• high sensitivity, with D^* > 2.5 × 109 cm·Hz^½/W
• rise time <3 ns
• active area of 1 mm × 1 mm
• wide field of view: 78°
• AC-coupled photoconductive configuration for pulsed laser detection

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A3.311) and CLEO 2025 in Long Beach (CA), USA, May 4–9 (booth 627)!

Hamamatsu Photonics provide sensors and modules for infrared light detection. Our product lineup includes InGaAs photodiodes, InAs and InSb photovoltaic detectors, thermopile detectors, and more. These detectors are designed for high sensitivity, low noise, and fast response across different spectral ranges.