96-Wavelength Optical Transmission System
As mobile networks evolve towards LTE and new services such as fixed broadband (FBB) users' IPTV, 8K video broadcast, and cloud computing continue to emerge, the transmission capacity of transport networks must be further improved. When the OSN series device uses the extended C band at a fixed channel spacing of 50 GHz, the maximum number of wavelengths in the system can be expanded from 80 to 96. The system capacity increases by 20%. With the help of flexible grid and superchannel technologies, the system capacity can be maximized to meet large-capacity transmission requirements in the future.
What Is Extended C Band?
Extended C band is a spectrum segment used on the basis of the traditional C band, as shown in Figure 1.
Improves the transmission performance.
In the case of the same modulation format, an extended C band network can achieve transmission over a larger span.
With a 50 GHz channel spacing, the single-fiber transmission capacity can be increased from 80 wavelengths to 96 wavelengths.
Supports seamless interconnection with the original C-band coherent system, without affecting existing investments.
During the optical-layer interconnection between systems, the original C-band coherent system does not require hardware reconstruction.
Supports the hitless adding of 96 wavelengths for a C-band ROADM site, improving the capacity.
The newly added 96-wavelength degree does not affect existing services at the site.
