Clock-distribution with instantaneous synchronization for 160 Gbit/s optical time-domain multiplexed systems packet...

Area of Science:

• Optical communications
• High-speed data transmission
• Synchronization techniques

Background:

• Ultra-high-speed optical time-domain multiplexing (OTDM) systems require precise clock synchronization for efficient data processing.
• Existing clock distribution methods face challenges in achieving fast locking times and stable clock signals for bursty data traffic.

Purpose of the Study:

• To introduce and validate a new clock distribution method for OTDM systems.
• To achieve instantaneous synchronization and a stable bursty clock for high-speed data packet processing.
• To enable error-free time demultiplexing at data rates from 160 Gbit/s down to 10 Gbit/s.

Main Methods:

• Demonstration of a novel clock-distribution technique.
• Testing of the method's synchronization speed and clock stability under bursty traffic conditions.
• Evaluation of error-free time demultiplexing performance over standard single-mode fiber (ITU G.652).

Main Results:

• Achieved instantaneous synchronization and fast locking/unlocking times.
• Generated a highly stable bursty clock signal.
• Enabled error-free operation for 160 to 10 Gbit/s time demultiplexing.
• Observed a low power penalty of 1.5 dB after 51 km fiber transmission.

Conclusions:

• The demonstrated clock distribution method is effective for ultra-high-speed OTDM systems.
• The technique facilitates reliable and efficient high-speed data packet processing.
• This advancement supports the deployment of faster and more robust optical communication networks.