Abstract

We present a balanced waveguide integrated avalanche photodiode (APD) for high-speed applications. Due to its high bandwidth up to 27 GHz (Fig. 1 a) and a responsivity of 0.6 A/W, this chip fulfils all requirements for coherent detection at symbol rates for 32 GBaud and beyond. Further, the internal gain and thus the high sensitivity of up to 9.6 A/W (Fig. 1) enable the detection of optical signals with low input power. This rises the idea for a homodyne detection scheme for differential QAM formats for avoiding the use of a local oscillator and therefore reducing the overall power consumption (Fig. 1).

© 2019 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription