Converting multiple light signals into and out of a single wavelength with multiple polarizations to increase optical bandwidth
Embodiments described herein may be related to apparatuses, processes, and techniques related to a dual polarization chiplet that may be used by an optical receiver to split multi-polarized light traveling on a single fiber and carrying two or more light signals into two or more fibers each carrying the particular light signal. The dual polarization chiplet may also be used by an optical transmitter to combine multiple light signals to be transmitted onto a single fiber, where each of the multiple light signals are represented by a different polarization of a wavelength on the single fiber. Other embodiments may be described and/or claimed.
1. An apparatus to facilitate optical signal transmission, the apparatus comprising:
a polarization beam converter (PBC), the PBC on a first chiplet;
a first optical input to receive a first light signal from a first optical transmitter, the first optical input optically coupled with the PBC;
a second optical input to receive a second light signal from a second optical transmitter, the second optical input optically coupled with the PBC, wherein a polarization converter is disposed between the second optical input and the PBC to convert the second light signal into a second light signal with altered polarization, wherein the first optical transmitter and the second optical transmitter are on a second chiplet, the second chiplet separate and distinct from the first chiplet; and
wherein the PBC is to combine the first light signal and the second light signal with altered polarization to transmit information carried on first signal and on the second signal on a same wavelength.
2. The apparatus of claim 1 , wherein the PCB is to output the combined light signal on an optical fiber.
3. The apparatus of claim 1 , wherein a wavelength of the first light signal and a wavelength of the second light signal with altered polarization is a same wavelength.
4. The apparatus of claim 1 , wherein the first light signal and the second light signal have a TE polarization, and the second light signal with altered polarization has a TM polarization.
5. The apparatus of claim 1 , further comprising:
a third optical input to receive a third light signal;
a splitter coupled with the third optical input, to split the third light signal into a fourth light signal and a fifth light signal, the fourth light signal coupled with a first optical output and the fifth light signal coupled with a second optical output; and
wherein the first optical output to optically couple with the first optical transmitter, and the second optical output to optically couple with the second optical transmitter.
6. The apparatus of claim 5 , further comprising an optical amplifier optically disposed between the splitter and the first optical output and/or the second optical output.
7. The apparatus of claim 6 , wherein the optical amplifier amplifies the first optical signal and the second optical signal.
8. The apparatus of claim 1 , wherein the apparatus is included in a silicon nitride (SiN) chiplet or an InP chiplet.
9. An apparatus to facilitate optical signal reception, the apparatus comprising:
an optical input to receive a light signal, the light signal including multiple polarizations;
a polarization beam splitter (PBS) coupled with the first optical input, the PBS to split the received light signal into a first light signal with a first polarization and into a second light signal with a second polarization, the PBS on a first chiplet; and
a first optical output and a second optical output, wherein the first light signal with the first polarization is coupled with the first optical output and the second light signal with the second polarization is coupled with the second optical output, wherein the first optical input is coupled to a first optical transceiver and the second optical input is coupled to a second optical transceiver, and wherein the first optical transceiver and the second optical transceiver are on a second chiplet, the second chiplet separate and distinct from the first chiplet.
10. The apparatus of claim 9 , wherein the first polarization is a TE polarization and the second polarization is a TM polarization.
11. The apparatus of claim 9 , further comprising an optical fiber coupled with the optical input.
12. The apparatus of claim 9 , wherein the apparatus is included in a chiplet.
13. A transceiver system, comprising:
an optical chiplet including:
a polarization beam combiner (PBC);
a first optical input to receive a first light signal with a first polarization from a first optical transmitter, the first optical input optically coupled with the PBC;
a second optical input to receive a second light signal with the first polarization from a second optical transmitter, the second optical input optically coupled with the PBC, wherein a polarization converter is disposed between the second optical input and the PBC to convert the second light signal into a second light signal with a second polarization; and
wherein the PBC is to combine the first light signal with the first polarization and the second light signal with the second polarization to transmit information carried on the first light signal and on the second light signal on a same wavelength; and
an optical transceiver chiplet optically coupled with the optical chiplet, the optical transceiver including:
a first optical output to couple with the first optical input of the optical chiplet; and
a second optical output to couple with the second optical input of the optical chiplet.
14. The transceiver system of claim 13 , wherein the optical chip further includes a first optical output coupled with an output of the PBC to transmit the combined the first light signal with the first polarization and the second light signal with the second polarization.
15. The transceiver system of claim 14 , wherein the optical chip further includes an optical fiber coupled with the first optical output.
16. The transceiver system of claim 13 , wherein the optical chip further includes:
a third optical input to receive a light signal, the light signal including multiple polarizations;
a polarization beam splitter (PBS) coupled with the third optical input, the PBS to split the light signal into a third light signal with a third polarization and into a fourth light signal with a fourth polarization; and
a second optical output and a third optical output, wherein the third light signal with the third polarization is coupled with the second optical output and the second light signal with the fourth polarization is coupled with the third optical output; and
wherein the optical transceiver chiplet further includes:
a first optical input optically coupled with the second optical output of the optical chip; and
a second optical input optically coupled with the third optical output of the optical chip.
17. The transceiver system of claim 13 , further comprising a substrate; and wherein the transceiver chiplet and the optical chiplet are physically and/or electrically coupled with the substrate.
18. The transceiver system of claim 13 , wherein the first polarization is a TE polarization and the second polarization is a TM polarization.
19. The transceiver system of claim 13 , wherein the optical chiplet is multiple optical chiplets and wherein the optical transceiver is multiple optical transceivers optically coupled, respectively, with the multiple optical chiplets.