Abstract

We present a 40Gb/s DPSK receiver module with athermal free-space DLI. It has a FSR of 43GHz, PDFS of 350MHz and a differential output voltage-swing of 550mV<sup>pp</sup>. 43Gb/s NRZ-DPSK back-to-back sensitivity was -4dBm (PRBS 2<sup>31</sup>-1).

© 2009 Optical Society of America

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