Michael R Noll

US Patent:

20210105547, Apr 8, 2021

Filed:

Oct 8, 2019

Appl. No.:

16/595698

Inventors:

- Espoo, FI
Michael Noll - Murray Hill NJ, US

Assignee:

Nokia Solutions and Networks OY - Espoo

International Classification:

H04Q 11/00
H04B 10/516
H04B 10/60

Abstract:

An electro-optical apparatus having an ASIC electrically linked, by way of a multistage SerDes, to an array of optical data transmitters and receivers. In an example embodiment, a first SerDes stage is connected to the ASIC by a plurality of relatively wide, short electrical buses and further connected to a second SerDes stage by a plurality of narrower, longer electrical buses. The second SerDes stage is located in close proximity to the transmitter/receiver array to enable the signals transmitted therebetween to be switched at a high frequency rate, e.g., higher than 500 MHz. The width and length of said narrower, longer electrical buses are selected such as to support a high overall data throughput for the corresponding electrical data links between the ASIC and the transmitter/receiver array while being able to afford acceptable levels of signal integrity, power usage, and timing skews in these links.