Optical engine
A system including an optical engine. In some embodiments, the system includes an integrated circuit in a first-level package, and the system includes the optical engine, in the first-level package, and the optical engine includes an electro-optical chip.
1. A system, comprising:
a first integrated circuit in a first-level package; and
an optical engine, in the first-level package,
the optical engine comprising a first electro-optical chip,
wherein the optical engine is configured to exchange data with the first integrated circuit at a first symbol rate, and an electrical connection between the optical engine and the first integrated circuit exhibits a loss of less than 10 dB at a Nyquist frequency corresponding to the first symbol rate.
2. The system of claim 1 , wherein the optical engine further comprises:
a second integrated circuit comprising a first analog circuit for interfacing to the first electro-optical chip.
3. The system of claim 2 , wherein:
the first electro-optical chip comprises a photodetector;
the optical engine further comprises a second electro-optical chip comprising an optical modulator; and
the second integrated circuit further comprises a second analog circuit for interfacing to the optical modulator.
4. The system of claim 3 , wherein the first analog circuit is a linear modulator driver, and the second analog circuit is a transimpedance amplifier.
5. The system of claim 2 , wherein the second integrated circuit further comprises a retiming circuit.
6. The system of claim 5 , wherein the second integrated circuit further comprises a physical coding sublayer circuit.
7. The system of claim 2 , wherein the optical engine is connected to a substrate of the first-level package through a reworkable interface.
8. The system of claim 7 , wherein the reworkable interface is a socketed interface.
9. The system of claim 2 , wherein the second integration circuit comprises an equalization circuit.
10. The system of claim 2 , wherein the first electro-optical chip comprises an optical PAM-4 modulator configured to driven by a two-bit control signal.
11. The system of claim 2 , comprising:
a plurality of optical engines including the optical engine; and
a management circuit, configured to manage the plurality of optical engines.
12. The system of claim 2 , comprising an enclosure having a front panel, the first-level package being in the enclosure, the system further comprising a front panel package comprising a laser connected through an optical fiber to the first-level package.
13. The system of claim 12 , wherein the front panel package has a QSFP-DD or OSFP-DD form factor and the optical fiber connects a first interface of the front panel package to the first-level package, the first interface being on the outside of the front panel.
14. The system of claim 2 , wherein the first integrated circuit is a packet-switching digital integrated circuit.
15. The system of claim 1 , wherein the first electro-optical chip comprises an optical PAM-4 modulator configured to driven by a two-bit control signal.
16. The system of claim 1 , comprising:
a plurality of optical engines including the optical engine; and
a management circuit, configured to manage the plurality of optical engines.
17. The system of claim 1 , comprising an enclosure having a front panel, the first-level package being in the enclosure, the system further comprising a front panel package comprising a laser connected through an optical fiber to the first-level package.
18. The system of claim 17 , wherein the front panel package has a QSFP-DD or OSFP-DD form factor and the optical fiber connects a first interface of the front panel package to the first-level package, the first interface being on the outside of the front panel.
19. The system of claim 1 , wherein the first integrated circuit is a packet-switching digital integrated circuit.