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SSSC is developing InGaAs/InP broadband photodiodes and arrays. The notable features are:
- Quantum efficiencies greater than 70% for the entire wavelength range between 400 nm and 1650 nm
- Individual photodiodes on the arrays are addressable and have electrical bandwidths in excess of 3 GHz.
- Spectral responses can be tuned to yield quantum efficiencies greater than 90% at specific wavelengths by utilizing internal reflection properties.
- Multiple simultaneous functions can be performed from a single receiver, a 1-D array receiver or a camera.
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| Fig.1: Typical responsivity and quantum efficiency data for a 40- micron broadband detector. |
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