Geometry for a semiconductor optical amplifier
In some implementations, a device may generate a data set including at least modal gain values and modal loss values for a semiconductor optical amplifier (SOA) slice. The device may determine, based on the data set, respective widths for a plurality of slices of an SOA using an autoregressive model. A width, of the respective widths, for a slice, of the plurality of slices, may be associated with a maximum conversion efficiency achievable for the slice at a given current density. The device may generate information indicating a geometry for the SOA based on the respective widths for the plurality of slices.
1 . A semiconductor optical amplifier (SOA) device, comprising:
an SOA having a plurality of slices of respective widths,
wherein a first slice, of the plurality of slices, precedes a second slice, of the plurality of slices, in a light propagation direction,
wherein a first width of the first slice is associated with a maximum conversion efficiency achievable for the first slice at an input optical power to the first slice and at a given current density, the first width defining an output optical power from the first slice to the second slice, and
wherein a second width of the second slice is associated with a maximum conversion efficiency achievable for the second slice at an input optical power to the second slice and at the given current density,
wherein the input optical power to the second slice is the output optical power from the first slice to the second slice.
2 . The SOA device of claim 1 , wherein each slice, of the plurality of slices, has a width associated with a maximum conversion efficiency achievable for the slice at a local optical power for the slice and at the given current density.
3 . The SOA device of claim 1 , wherein a slice, of the plurality of slices, has a length in a light propagation direction of the SOA and a width in a direction transverse to the light propagation direction.
4 . The SOA device of claim 1 , wherein the respective widths for the plurality of slices define a geometry for the SOA that is associated with a maximum conversion efficiency achievable for the SOA device.
5 . The SOA device of claim 1 , wherein the SOA has an input end and an output end in a light propagation direction,
wherein a section of the SOA, between the input end and the output end, has a taper that gradually increases in width in the light propagation direction, and
wherein a slope of the taper decreases in the light propagation direction.
6 . A semiconductor optical amplifier (SOA) device, comprising:
an SOA having an input end and an output end in a light propagation direction,
wherein a section of the SOA, between the input end and the output end, has a taper that gradually increases in width in the light propagation direction, and
wherein a slope of the taper decreases in the light propagation direction.
7 . The SOA device of claim 6 , wherein the taper nonlinearly increases in width in the light propagation direction.
8 . The SOA device of claim 6 , wherein the taper includes a convex curve relative to an axis of the SOA defined by the light propagation direction.
9 . The SOA device of claim 6 , wherein the SOA includes an input section, extending from the input end to the section, that has a constant width in the light propagation direction.
10 . The SOA device of claim 6 , wherein the SOA includes an output section, extending from the section to the output end, that has a constant width in the light propagation direction.
11 . The SOA device of claim 6 , wherein the SOA includes:
an input section, extending from the input end to the section, that has a constant width in the light propagation direction, and
an output section, extending from the section to the output end, that has a constant width in the light propagation direction.
12 . The SOA device of claim 6 , wherein the taper defines a geometry for the SOA that is associated with a maximum conversion efficiency achievable for the SOA device.
13 . An apparatus, comprising:
a semiconductor optical amplifier (SOA),
wherein a first slice of the SOA precedes a second slice of the SOA, in a light propagation direction,
wherein a first width of the first slice is associated with a maximum conversion efficiency achievable for the first slice at an input optical power to the first slice and at a given current density, the first width defining an output optical power from the first slice to the second slice, and
wherein a second width of the second slice is associated with a maximum conversion efficiency achievable for the second slice at an input optical power to the second slice,
wherein the input optical power to the second slice is the output optical power from the first slice to the second slice.
14 . The apparatus of claim 13 , wherein each slice, of the plurality of slices, has a width associated with a maximum conversion efficiency achievable for the slice at a local optical power for the slice and at the given current density.
15 . The apparatus of claim 13 , wherein a slice, of the plurality of slices, has a length in a light propagation direction of the SOA and a width in a direction transverse to the light propagation direction.
16 . The apparatus of claim 13 , wherein the respective widths for the plurality of slices define a geometry for the SOA that is associated with a maximum conversion efficiency achievable for the apparatus.
17 . The apparatus of claim 13 , wherein the SOA has an input end and an output end in a light propagation direction,
wherein a section of the SOA, between the input end and the output end, has a taper that gradually increases in width in the light propagation direction, and
wherein a slope of the taper decreases in the light propagation direction.
18 . The apparatus of claim 13 , wherein a section of the SOA, between the input end and the output end, has a taper that gradually increases in width in the light propagation direction, and
wherein a slope of the taper decreases in the light propagation direction.
19 . The apparatus of claim 18 , wherein the taper nonlinearly increases in width in the light propagation direction.
20 . The apparatus of claim 18 , wherein the taper includes a convex curve relative to an axis of the SOA defined by the light propagation direction.