Wavelength combiner unit and arrayed waveguide grating having the same
First Claim
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1. A wavelength combiner comprising:
- a slab waveguide;
an output waveguide extending from the slab waveguide in a first direction; and
first and second sub rib waveguides, each of the first and second sub rib waveguides being disposed at an interval from a corresponding side surface of the output waveguide and extending from the slab waveguide in the first direction,wherein each of the first and second sub rib waveguides includes a portion that is tapered in the first direction, the tapered portion having a first side surface that faces and is substantially parallel to the corresponding side surface of the output waveguide.
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Abstract
Provided is a wavelength combiner including a slab waveguide; an output waveguide extended from the slab waveguide in a first direction; and at least one rib waveguide disposed at an interval horizontally from the output waveguide and extended from the slab waveguide in the first direction, wherein the rib waveguide is tapered in the first direction.
49 Citations
17 Claims
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1. A wavelength combiner comprising:
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a slab waveguide; an output waveguide extending from the slab waveguide in a first direction; and first and second sub rib waveguides, each of the first and second sub rib waveguides being disposed at an interval from a corresponding side surface of the output waveguide and extending from the slab waveguide in the first direction, wherein each of the first and second sub rib waveguides includes a portion that is tapered in the first direction, the tapered portion having a first side surface that faces and is substantially parallel to the corresponding side surface of the output waveguide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An arrayed waveguide grating (AWG) comprising:
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an arrayed waveguide; an input star coupler connected to one end of the arrayed waveguide; and an output star coupler connected to the other end of the arrayed waveguide, wherein the output star coupler comprises; a slab waveguide; an output waveguide extending from the slab waveguide in a first direction; and first and second sub rib waveguides, each of the first and second sub rib waveguides being disposed at an interval from a corresponding side surface of the output waveguide, and wherein each of the first and second sub rib waveguides includes a portion that is tapered in the first direction, the tapered portion having a first side surface that faces and is substantially parallel to the corresponding side surface of the output waveguide. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification