Optical module packaging wire bonding
PWBs are a high-yield, low-insertion-loss, and high-throughput versatile method of packaging photonic components such as chip-to-fiber, laser-to-chip interconnects. A promising approach is to create "photonic wire bonds" (PWBs), namely optical waveguides that look similar to conventional electrical wire bonds. The Photonics Packaging Group at the Tyndall National Institute in Ireland is a Europractice partner and offers packaging and integration services for the Silicon Photonic Integrated Circuits (Si-PICs) fabricated in the MPW runs. Built on advanced 3D nano-printing technology, PWB is inherently a fully automated process and provides a high degree of design flexibility. Here we demonstrate low loss (2 dB per channel) connections between a single mode fiber array and tapered silicon waveguides down to 5 K using polymer based photonic wire bonds (PWBs).
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