Power proportionality in transceivers

A method of transmission, the method comprising:

• sending, in two or more groups of channels, data and at least one clock signal over an optical link to a receiver, wherein each group in the two or more groups of channels comprises:
• at least one channel for sending at least one data packet of the data;
• and
• a channel for sending a clock signal of the at least one clock signal, wherein the clock signal is synchronized with the at least one data packet in the group of channels.

An apparatus comprising:

• a receiver for receiving, in two or more groups of channels, data and at least one clock signal over an optical link from a transmitter, wherein each group in the two or more groups of channels comprises:
• at least one channel for sending at least one data packet of the data;
• and
• a channel for sending a clock signal of the at least one clock signal, wherein the clock signal is synchronized with the at least one data packet in the group of channels.