Fiber optics refers to the technology that transmits light through thin glass or plastic fibers for data, voice, and video signal transmission. Fiber optic accessories include components that enable system assembly, signal management, and network optimization. These technologies form the backbone of modern high-speed communication, offering advantages such as ultra-high bandwidth, low signal loss, and immunity to electromagnetic interference.
| Type | Functional Features | Application Examples |
|---|---|---|
| Single-Mode Fiber (SMF) | Transmits single light path, low dispersion, ideal for long-distance | Telecom backbone networks, submarine cables |
| Multi-Mode Fiber (MMF) | Multiple light paths, higher bandwidth for short distances | Data centers, enterprise LANs |
| Optical Transceivers | Convert electrical to optical signals and vice versa | Switch/routers in 5G networks |
| Optical Amplifiers | Boost signal strength without optical-electrical conversion | Long-haul DWDM systems |
| Fiber Optic Connectors | Enable physical fiber connections with minimal loss | FTTH installations, data centers |
Fiber optic cables consist of:
Accessories include:
- Mechanical splices and fusion splicers
- Optical isolators and circulators
- WDM multiplexers/demultiplexers
| Parameter | Description | Importance |
|---|---|---|
| Attenuation (dB/km) | Signal loss per kilometer | Directly affects transmission distance |
| Bandwidth (MHz km) | Data carrying capacity | Determines maximum data rate |
| Chromatic Dispersion | Light pulse spreading over distance | Impacts signal integrity at high speeds |
| Operating Wavelength (nm) | Optimal transmission window | Matches laser source characteristics |
| Return Loss (dB) | Reflected signal power | Affects system stability |
Major industries:
Typical equipment: DWDM multiplexers, OTDR testers, fiber patch panels
| Manufacturer | Key Products |
|---|---|
| Corning Incorporated | SMF-28 Ultra fiber, ClearCurve VCSEL fiber |
| Finisar (II-VI) | 100G QSFP28 transceivers, WDM solutions |
| Huawei Technologies | OptiX OSN transmission systems |
| 3M Fiber Optics | Enclosure systems, fiber management solutions |
Key considerations:
Example: Selecting OM4 MMF for 100G data center links under 150m distance
Future developments include: