CPC G02B 6/36 (2013.01) [G02B 6/12004 (2013.01); G02B 6/132 (2013.01); G02B 6/4214 (2013.01)] | 20 Claims |
1. A silicon-based photonic chip comprising an interface for optically coupling the photonic chip to an optical fiber or an optical fiber assembly, wherein the interface comprises:
a single-mode waveguide configured to guide light and to provide a first light beam;
a first optical element configured to expand the first light beam in a first direction that is in-plane of the photonic chip and to confine the first light beam in a direction that is perpendicular to the plane of the photonic chip, thereby providing an expanded light beam; and
a second optical element configured to deflect the expanded light beam and to further expand the expanded light beam in a second direction that is perpendicular to the first direction, thereby providing an output light beam from the photonic chip having a beam dimension in the first direction that is the same as a beam dimension in the first direction of the expanded light beam provided by the first optical element.
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