The 1990s saw the rise of single-mode and multimode fiber optic cables, WDM systems, and fiber-in-the-loop deployments that enabled high-speed data transmission and the early internet boom.Table of No...
| Cable/Model | Type | Core/Cladding | Typical Data Rate | Key Features | Deployment/Use |
|---|---|---|---|---|---|
| ITU-T G.652 | Single-mode | 8–10 µm / 125 µm | Up to 2.5 Gbps (mid-1990s) | Low-loss, standard single-mode fiber, widely adopted | Long-haul and metro networks |
| ITU-T G.653 | Single-mode | 8–10 µm / 125 µm | 2.5–10 Gbps | Dispersion-shifted fiber, optimized for 1550 nm | High-speed long-distance links |
| ITU-T G.655 | Single-mode | 8–10 µm / 125 µm | 10–40 Gbps | Non-zero dispersion-shifted fiber, suitable for WDM | Dense WDM systems, backbone networks |
| OM1 (62.5/125 µm) | Multimode | 62.5 µm / 125 µm | 100 Mbps – 1 Gbps | Early multimode fiber, LED light source | LANs, campus networks |
| OM2 (50/125 µm) | Multimode | 50 µm / 125 µm | 1 Gbps | Improved bandwidth over OM1 | LANs, short-distance networks |
| Erbium-Doped Fiber Amplifier (EDFA) | Amplifier fiber | Single-mode | 2.5–100 Gbps | Enabled long-distance amplification without electrical regeneration | High-speed backbone networks, WDM systems |
| Fiber in the Loop (FITL) | Single-mode | 8–10 µm / 125 µm | 155 Mbps – 622 Mbps | Integrated fiber to subscriber loop, early FTTH | Germany, Europe (1993–1995) |
| Bend-Insensitive Fiber | Single-mode | 8–10 µm / 125 µm | 2.5–10 Gbps | Reduced loss from bending, microcables | Urban deployments, high-density installations |
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