With the rapid development of communication technology, telecommunication services are developing towards integration, digitization, intelligence, broadband and personalization. People’s demand for diversified telecommunication services is also increasing. At the same time, the increasing maturity and use of optical transmission technology on the backbone network has laid the foundation for realizing the “three-in-one, one-line access to households” of voice, data and images. How to make full use of existing network resources to increase business types and improve service quality has become a topic of increasing research attention by telecommunication experts and operators, and the “last mile” solution is the focus of everyone’s attention. Therefore, the access network has become a hot spot in network application and construction, among which the optical fiber access network is particularly prominent.
Optical fiber access network is an access network that uses optical fiber as the transmission medium and uses light waves as optical carriers to transmit signals. It generally refers to an access system that uses optical fiber communication or partially uses optical fiber communication between service nodes (local switches or remote switching modules) and users. According to the main types of optical devices in the transmission facilities, optical fiber access networks are divided into active optical networks (AON) and passive optical networks (PON).
AON consists of optical line terminals (OLT), optical network units (ONU), optical distribution terminals (ODT) and optical fiber transmission lines. Active optical devices such as optical modules are used in transmission facilities. PON refers to the optical distribution network (ODN ) between OLT and ONU, which is mainly composed of passive optical components such as optical fibers, optical connectors, passive optical splitters (splitters) and optical fiber connectors, without any active electronic devices. PON is a pure dielectric network that avoids electromagnetic interference and lightning effects from external devices, reduces the failure rate of lines and external devices, improves system reliability, and saves maintenance costs.
Jiuhong Optoelectronics’ fiber optic access network solution includes active optical transceiver modules, passive wavelength division multiplexing and passive optical splitters, which can meet the transmission requirements of 100m to 150km in distance.
Optical fiber access network active optical module solution
| Product Name | Applicable scenarios | Maximum transmission distance |
|---|---|---|
| 10G SFP+ 10G optical module | 10G, SDH, OTN | 220m-80km |
| 10G CWDM SFP+ 10GbE Coarse Wavelength Division Multiplexing Optical Module | 10G, SDH, OTN | 10km-80km |
| 10G DWDM SFP+ 10G DWDM optical module | 10G, SDH, OTN | 20km-80km |
| 10G BiDi SFP+ single fiber bidirectional 10G optical module | 10G, SDH, OTN | 10km-80km |
| 10G XFP 10G optical module | 10G, SDH, OTN | 300m-120km |
| 10G CWDM XFP 10GbE Coarse Wavelength Division Multiplexing Optical Module | 10G, SDH, OTN | 10km-80km |
| 10G DWDM XFP 10G Dense Wavelength Division Multiplexing Optical Module | 10G, SDH, OTN | 20km-120km |
| 10G BiDi XFP 10G single fiber bidirectional optical module | 10G, SDH, OTN | 10km-80km |
| 155M SFP 100M optical module | FE, SDH | 2km-150km |
| 1.25G SFP Gigabit Optical Module | GE,SDH | 550m-120km |
| 2.5G SFP optical module | GE,SDH | 300m-80km |
| CWDM SFP coarse wavelength division multiplexing optical module | FE, GE, SDH | 40km-120km |
| DWDM SFP Dense Wavelength Division Multiplexing Optical Module | FE, GE, SDH | 80km-120km |
| BiDi SFP single fiber bidirectional optical module | FE, GE, SDH | 2km-120km |
Passive Solutions
| Product Name | Applicable scenarios | Number of channels |
|---|---|---|
| WDM Wavelength Division Multiplexer | WDM/CWDM/DWDM | 1-18 |