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Integrated recirculating optical buffers

2010; SPIE; Volume: 7606; Linguagem: Inglês

10.1117/12.842970

1996-756X

Martijn J. R. Heck, Géza Kurczveil, Emily F. Burmeister, Hyundai Park, John Mack, Daniel J. Blumenthal, John E. Bowers,

Quantum optics and atomic interactions

In this paper we present the rationale behind photonic integration of optical buffers for packet switching using optical delay lines. Our work on integrated buffers consisting of Indium-Phosphide-based gate matrix switches and silica-based delay lines is reviewed. Successful implementation of this hybridly integrated chip in a synchronously loaded optical packet buffer is shown. Integration of an optical buffer on the hybrid silicon platform, where active switches can be combined with a low-loss silicon delay line, is discussed and the results for a fully integrated 1.1-ns delay buffer are presented. We report on our current efforts to reduce the silicon waveguide loss to scale the hybrid silicon buffer to be able to store 40-byte packets.