Abstract
A fully packaged traveling wave photodetector (TWPD) with monolithically
integrated optical power splitter for high-speed high-power applications in
excess of 100 GHz is demonstrated. The detector module provides a responsivity
of 0.24A/W with a polarization dependence of only 0.2 dB
at 1.55$\mu$m
wavelength and is suitable for the detection of RZ data rates in excess of
80 Gbit/s with unsaturated peak voltages of ${>}0.5$ V. Chip-based measurements show a broadband
impedance match, a 3 dB bandwidth of 80 GHz and a maximum electrical output
power of ${-}2.5$ dBm at
150 GHz.
© 2007 IEEE
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