The 25G Dispersion Trap — and How a Chip Solves It
Upgrading 5G fronthaul from 10G to 25G triggers chromatic dispersion that collapses fiber reach from 80 km to just 15 km. Point2 Technology's Range Extender chip restores it to 70 km — with no new infrastructure.
⚠ The Problem
10G → 25G Upgrade Collapses Range
📡 Base Station
15 km max ✗
✗
🏢 Core Network
Eye Diagram @ 10G / 70km
Eye Diagram @ 25G / 15km+
80 km
Reach at 10G — no issue
15 km
Reach at 25G — 5× collapse
✓ The Solution
Range Extender Chip Restores 70 km
📡 Base Station
60–70 km ✓
🏢 Core Network
Input: Degraded 25G Signal
⚙️
EDC chip
Output: Restored Clean Signal
60–70 km
Restored reach at 25G
$0
New infrastructure cost — chip-only fix
How EDC (Electronic Dispersion Compensation) Works
1
Sample
GHz-rate ADC captures distorted analog waveform in real time
2
Analyze
Digital signal processing identifies dispersion phase error profile
Clean digital waveform output — eye diagram fully reopened
✓
70 km
Effective 25G fronthaul reach restored without field work
🇯🇵
Sumitomo Electric Industries (SEI) — Long-Term Supply Partnership
Point2 Technology's Range Extender IC is designed-in to Sumitomo Electric's 25G optical transceiver modules — one of the world's largest fiber and optical infrastructure suppliers. This partnership provides long-term volume revenue while the e-Tube data center business scales.
Source: Point2 Technology — 25G Range Extender Technical Report (2023) | Sumitomo Electric Industries partnership announcement