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G12430 InGaAs photodiode arrays

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Hamamatsu Photonics introduce a new range of InGaAs photodiode arrays, the G12430 series, designed for NIR spectroscopic analysis. The company has also unveiled a miniature spectrometer range, the C11697MB.

Formed in a ceramic DIP, the G12430 comes in three different array sizes: 16, 32 or 46 elements. The element size on each of these sensors is large which enables high light collection along the entirety of the array; the G12430-016D offers elements measuring 0.45 x 1 mm, and the G12430-032D and G12430-046D offer an element size of 0.2 x 1 mm.

The G12430 series offers a spectral range in the NIR from 0.9 – 1.7 µm with a typical photosensitivity of 0.95 A/W under room temperature operation, so there is no need for additional cooling. These features are what make them ideal for simple measurement in NIR spectrophotometers.

Hamamatsu has also introduced the latest offering in its range of miniature spectrometers, the C11697MB; a high-sensitivity, trigger-compatible VIS-NIR mini-spectrometer module. The new C11697MB is ideal for inline testing applications and measurement of pulsed light emission due to the high sensitivity offered by the new S11639 CMOS linear image sensor housed inside.

The C11697MB offers high sensitivity across a wide spectral response range from 320 - 1000 nm, with light input from the measurement sample via a fibre optic cable. With a 2048 pixel array offering a spectral resolution of 8 nm, the module offers a high-speed readout time of only 2 ms. Along with the trigger function of the CMOS array offering an integration time of only 30 µs, this makes it ideally suited for inline inspection of LEDs.

Operation of the C11697MB is simply via a USB interface which enables “plug and play” connection to a PC, so no external power supply is required. The C11697MB comes supplied with free evaluation software that allows the user to set the measurement conditions, acquire and save data and display the results graphically. This makes it very easy to set up and begin taking basic measurements.