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GoPhotonics offers a wide range of Photodetectors designed to meet diverse optical sensing and signal detection requirements. These devices convert light into electrical signals for measurement, monitoring, and communication applications. Ongoing advances in photodetector technology continue to improve sensitivity, bandwidth, response speed, and wavelength coverage, supporting applications ranging from RF photonics and LiDAR to spectroscopy and medical diagnostics.

UTC Photodetector for High-Speed RF Photonic Links

The D13 Series from Phase Sensitive Innovations is a Uni-Traveling Carrier (UTC) photodetector designed for high-speed optical-to-electrical signal conversion. It operates across wavelength ranges of 1530 nm to 1565 nm and 980 nm to 1100 nm, offering responsivities of up to 0.4 A/W in the C-band and 0.35 A/W at 1000 nm.

The photodetector provides a bandwidth of 40 GHz and high linearity with a third-order intercept point (IP3) greater than 30 dBm, making it suitable for demanding RF and microwave photonic systems. Operating with a reverse bias voltage from 4 V to 6 V, it is ideal for RF photonic links, high-speed photodetection, photonic RF generation, multimode photodetection, and microwave photonic link applications.

Quadrant Photodetector for Precision Position Sensing

The QD50-0 from OSI Optoelectronics is a quadrant photodetector featuring an integrated photodiode array and signal-processing circuitry. It delivers responsivity from 0.47 A/W to 0.54 A/W at 900 nm and incorporates a large 50 mm² active area with an 8 mm active-area diameter.

Designed for accurate beam positioning and tracking, the detector generates two differential signals and one sum signal. It offers a rise time of 10 ns, low dark current of 15 nA to 30 nA, and a noise-equivalent power of 1.3 x 10^-13 W/√Hz. Housed in a TO-8 package, the QD50-0 is well suited for position measurement, beam centering, targeting, and guidance system applications.

Silicon Avalanche Photodetector for LiDAR and Spectroscopy

The A-CUBE-S1500-01 from Laser Components is a silicon avalanche photodetector (APD) module operating from 400 nm to 1000 nm. It provides responsivities of up to 500 MV/W at 905 nm and achieves noise-equivalent power values as low as 6 fW/√Hz.

The APD features a 1.5 mm active-area diameter, bandwidth from DC to 1 MHz, integrated high-voltage supply, matched preamplifier, and temperature compensation circuitry. The module can be controlled through an RS-232 interface and supports optional optical fiber coupling with an FC connector. Its compact design makes it suitable for LiDAR, range finding, optical communication systems, spectroscopy, fluorescence detection, medical applications, and APD evaluation.

Broadband Photodetector for RF-over-Fiber Applications

The MA06 from Skyastar Technologies is a high-speed photodetector covering wavelengths from 900 nm to 1700 nm. It supports frequency ranges from DC to 18 GHz in DC-coupled mode and 9 kHz to 18 GHz in AC-coupled mode.

The detector provides responsivities of 0.4 mA/mW at 1064 nm, 0.8 mA/mW at 1310 nm, and 0.7 mA/mW at 1550 nm, with a conversion gain of 300 V/W at 1310 nm. Featuring a fast 20 ps rise time, the MA06 is optimized for high-frequency optical communication systems. It is ideal for RF-over-fiber networks, synchronization systems, secure communications, distributed antenna systems, fiber delay lines, and OFDM fiber transmission applications.

Blue-Enhanced Photodetector for Medical and Analytical Instruments

The ODA-6WB-100M from Opto Diode Corporation is a blue-enhanced photodetector designed for low-light-level detection across a wavelength range of 400 nm to 1100 nm. It offers a sensitivity of 20 V/μW and incorporates a high 100 MΩ transimpedance gain.

The detector has an active area of 5.87 mm², noise-equivalent power of 85 fW/√Hz, and dark offset noise of 198 μV rms. Packaged in a hermetically sealed TO-39 housing, it is optimized for photometry and colorimetry, pulse oximetry, and bar code reader applications, where stable and accurate optical signal detection is critical.

Expanding Options for Optical Detection

From ultra-high-speed RF photonics and optical communications to precision positioning, LiDAR, spectroscopy, and medical instrumentation, modern photodetectors provide specialized performance tailored to a wide range of optical sensing challenges. The latest offerings available through GoPhotonics enable engineers and researchers to select photodetectors with the bandwidth, sensitivity, and wavelength coverage needed for their specific applications.

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