US 2022/0091333 A1 · Light Splitting Device

Abstract

Configurations for a one by four light splitting device are disclosed. The light splitting device may include a primary waveguide, a first coupling waveguide, and a second coupling waveguide. The primary waveguide may couple light from the primary waveguide into both the first and second coupling waveguides. Due to the manipulation of the coupling modes, a fundamental mode of light may be input and four fundamental modes of light may be output. In some examples, the primary waveguide may input a fundamental mode of light that may be converted into a first hybrid mode, which may be a four lobe mode. The first and second coupling waveguides may be tapered and separated by a gap such that the first hybrid mode may be converted into two second hybrid modes, which may then be converted back into four fundamental modes of output light.

Claims20

Dependent claims

A light splitting device, comprising:

a first region configured to provide a fundamental mode of light;
a second region configured to convert the fundamental mode of light to a first hybrid mode of light, the second region comprising:
a primary waveguide with a first side and a second side;
a first coupling waveguide adjacent to the first side of the primary waveguide;
and
a second coupling waveguide adjacent to the second side of the primary waveguide;
and
a third region configured to convert the first hybrid mode of light to multiple second hybrid modes of light, the third region comprising:
a first Y-junction in the first coupling waveguide and configured to convert one of the multiple second hybrid modes of light to the fundamental mode of light;
and
a second Y-junction in the second coupling waveguide and configured to convert another of the multiple second hybrid modes of light to the fundamental mode of light.

8 more elements

Dependencies are inferred from the claim text.

Light Splitting Device

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Light Splitting Device

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Abstract

Claims20