2X2 PHOTONIC SPLITTER USING MODE CONVERTING Y-JUNCTIONS

Abstract: a 2�2 photonic splitter includes two mode converting y-junctions. a first stage mode converting y-junction includes input branch ports adapted to receive an input optical signal propagating in a fundamental spatial mode at either of the input branch ports, a first trunk port, and a first mode converting region. the first mode converting region is adapted to convert at least a first power portion of the fundamental spatial mode of the input optical signal when received via at least one of the input branch ports to a higher order spatial mode at the first trunk port. the second stage mode converting y-junction includes output branch ports adapted to emit output optical signals having the fundamental spatial mode, a second trunk port, and a second mode converting region optically coupling the output branch ports to the second trunk port. a connected trunk section photonically links the trunk ports.

Inventor(s): ALFRED KA CHUN CHEUNG, YI-KUEI RYAN WU

CPC Classification: G02B6/2821 (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS)

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