US 8,958,665 B2Granted

Scattering device on an arrayed waveguide grating

AssigneeInfinera Corporation

InventorsPeter W. Evans, Pavel Studenkov, Mehrdad Ziari, Matthias Kuntz, Scott Corzine, Masaki Kato, Vikrant Lal

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Abstract

An optical device may include a substrate; an arrayed waveguide grating provided on the substrate and having first and second slabs; multiple first waveguides extending from the first slab, the multiple first waveguides may supply respective first optical signals to the first slab; multiple second waveguides extending from the second slab, the multiple second waveguides may supply respective second optical signals to the second slab; a third waveguide extending from the second slab, the third waveguide outputting a third optical signal from the second slab, the third optical signal including the first optical signals; a fourth waveguide extending from the first slab, the fourth waveguide may output a fourth optical signal from the first slab, the fourth optical signal including the second optical signals; and a first scattering device optically coupled to a portion of an edge of the first slab between the multiple first waveguides and the fourth waveguide.

Claims25

Dependent claims

An optical device, comprising:

a substrate;
an arrayed waveguide grating provided on the substrate, the arrayed waveguide grating having first and second slabs;
a plurality of first waveguides extending from the first slab, the plurality of first waveguides supplying respective first optical signals to the first slab;
a plurality of second waveguides extending from the second slab, the plurality of second waveguides supplying respective second optical signals to the second slab;
a third waveguide extending from the second slab, the third waveguide outputting a third optical signal from the second slab, the third optical signal including the first optical signals;
a fourth waveguide extending from the first slab, the fourth waveguide outputting a fourth optical signal from the first slab, the fourth optical signal including the second optical signals;
one or more first scattering devices optically coupled to a portion of an edge of the first slab between the plurality of first waveguides and the fourth waveguide;
and
one or more second scattering devices optically coupled to a portion of an edge of the second slab between the plurality of second waveguides and the third waveguide.

6 more elements

An optical device, comprising:

a substrate;
an arrayed waveguide grating provided on the substrate, the arrayed waveguide grating having first and second slabs;
a first waveguide extending from the first slab, the first waveguide supplying a first optical signal to the first slab;
a second waveguide extending from the second slab, the second waveguide supplying a second optical signal to the second slab;
a plurality of third waveguides extending from the second slab, the plurality of third waveguides outputting respective third optical signals from the second slab, the respective third optical signals being associated with the first optical signal;
a plurality of fourth waveguides extending from the first slab, the plurality of fourth waveguides outputting respective fourth optical signals from the first slab, the respective fourth optical signals being associated with the second optical signal;
one or more first scattering devices optically coupled to a portion of an edge of the first slab between the first waveguide and the plurality of fourth waveguides;
and
one or more second scattering devices optically coupled to a portion of an edge of the second slab between the second waveguide and the plurality of third waveguides.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/675,594Filed 13 Nov 2012
Published: US 2014/0133795 A115 May 2014
Granted: 17 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G02B 6/12016
Comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides: characterised by the input or output waveguides, e.g.…
G02B 6/12019
Comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides: characterised by the optical interconnection to or…
G02B 6/29301
With wavelength selective means: based on a phased array of light guides
G02F 1/00
Devices or arrangements for the control of the intensity, colour, phase, polarisation