Germanium photodiodes are commonly used to measure optical power in the NIR range, especially in cost-sensitive applications or where a large-area detector is needed. However, germanium detectors have a lower shunt resistance and higher dark current than similarly-sized InGaAs detectors, resulting in higher noise levels overall. Therefore, germanium detectors are well suited for applications where the signal being detected is much higher than the noise floor. GPD Optoelectronics offers an"HS" series of germanium photodiodes which have higher-than-typical shunt resistance for improved performance.

Note: Unless otherwise noted, all measurements are performed at 25 °C ambient temperature.

Responsivity Specified at the Peak Wavelength

NEP is Specified for the Photovoltaic Mode

Responsivity Spectrum

Dark Current

This is a sample curve of the dark current. Actual performance will vary from photodiode to photodiode. Do not exceed the 1 V maximum reverse bias voltage.