Technology | Advantages | Disadvantages |
Optical Carrier | - Best ultrastable frequency service performances
- Has been operated in different setups (dark channel and dark fibre)
| - Limited number (but more demanding) of end-users because frequency combs are required to use the distributed signal
- Most of equipment is designed to work @ 194.4THz (C-Band)
- Requires highly trained personnel.
|
ELSTABActive cancellation with electronic delays | - Distributions Time and Frequency services
- Wavelength is fixed but can be chosen all over C-Band to fit any ITU channel
| - Even greater performances might be required for the most demanding end-users (optical clock comparisons)
|
White RabbitPTP | - Easy to use
- A wide range of potential end-users
- Time and Frequency service
- Affordable prices
| - Performances only slightly better than GPS
|
