GLSUN Passive WDM solution in 5G fronthaul

Install the color optical module on the AAU and DU side, complete the WDM function through passive equipment, and use a pair or one optical fiber to provide multiple AAU to DU connections.

GLSUN provide 6 Wavelengths WDM Module and 12 wavelengths WDM Module for 5G Fronthaul. Welcome to visit www.glsun.com for more details.

6 Wavelengths WDM Module

12 Wavelengths WDM Module

GLSUN Launch 6 Wavelengths WDM Module for 5G Fronthaul

GLSUN offers 6 Wavelengths WDM Module with features on low insertion loss, small module dimension
and excellent reliability for 5G fronthaul. GLSUN 6 wavelengths CWDM is coarse wavelength multiplexing/demultiplexing module combined with optical switch. Support bidirectional 6 CWDM wavelengths and each wavelength has PD for optical power detection. The COM port supports primary and backup optical path switching and bidirectional optical power detection.

Semi-active WDM: Passive colorful optical modules and multiplexer/demultiplexer units are deployed at AAU side, and active WDM equipment is deployed at DU side. Multiple AAUs share a fiber for transmission, and no power supply is required at the remote end.

In 4G era, because of low requirements for protection and monitoring, passive CWDM has been widely used due to its mature industry chain, power-free, and plug-and-play features. However, after entering 5G era, in the face of the contradiction between the high reliability of 2B service, the management of massive CRAN networks, and the limited number of operation and maintenance personnel, the application of semi-active technology has become a solution for how to meet new requirements of 5G era.

Semi-active CWDM is based on passive CWDM,adding coupler, optical switch and PD core unit to realize line protection and local side optical power detection functions.

For more information, welcome to visit glsun.com

Schematic of An Integrated Wireless Access and Passive Optical Network (PON)

This is a possible schematic of a hybrid optical-wireless integrated network incorporating PON architecture. It consists of an optical headend or central office that acts as the gateway to the optical metropolitan backbone while serving a large number of optical network units (ONUs) for wired applications and antenna base stations for wireless applications. In this integrated network, the wired data and wireless signals from the trunk network are combined in the central office before distribution to the respective wired and wireless customers via a remote node (RN) or a hybrid wired/wireless base station (ONU/BS).

In the following subsections, we will review different wireless-PON integrated architectures and the enabling subsystem technologies to efficiently transport both wired and wireless signals while maintaining maximum signal transparency.

GLSUN Group,your reliable raw manufacturing partner who focus on all optical line, from DFB 10G,25G industrial chips, TOCAN, transceivers, passive devices, function modules, slots and OEM integrated transmission, 5G front-haul equipment.

Welcome to visit www.glsun.com

Next-generation Converged Optical-wireless Access Networks in 5G

To make an end-to-end transmission network, all different types of WAN are connected to the fibers. In one hand, the access network provides ultra high speed Internet access for fiber to the x (FTTX) application via optical line terminal (OLT). On the other hand, high-speed and convenient millimeter wave (MMW) and small cell WAN is utilized.




GLSUN Group,your reliable raw manufacturing partner who focus on all optical line, from DFB 10G,25G industrial chips, TOCAN, Transceivers, passive devices, function modules, slots and OEM integrated transmission, 5G front-haul equipment.

Welcome to visit us at www.glsun.com.

Tree-shape Passive Optical Access Network(PON) Topology

Ethernet Passive Optical Networks (EPON) deployment offers higher bandwidth than copper-based technologies in a cost-effective way. EPON is composed of three main parts:

(1)optical line terminal (OLT), which is located at the central office and acts as a gateway between the access and core networks;

(2)optical network units (ONU), located at the customer side and connected to the home network;

(3)passive splitters and optical fibers connected in a tree topology.




GLSUN Group,your reliable raw manufacturing partner who focus on all optical line, from DFB 10G,25G industrial chips, TOCAN, transceivers, passive devices, function modules, slots and OEM integrated transmission, 5G front-haul equipment.

Welcome to visit www.glsun.com.

Fibre to The Distribution Point (FTTdp) Access Network

 In order to make fiber to home, telecom operators need use G.fast technology with the existing copper wires. When telecom providers deploy fibers, customers can get a similar fiber access speed.

It is also a supplement of FTTdp (fibre to the distribution point), multi-port FTTdp, FTTC (fibre to the cabinet, or curb), and FTTH (fibre to the home). The advantage is not restricting the available fibre bandwidth.

GLSUN Group,your reliable raw manufacturing partner who focus on all optical line, from DFB 10G,25G industrial chips, TOCAN, transceivers, passive devices, function modules, slots and OEM integrated transmission, 5G front-haul equipment.

Welcome to visit www.glsun.com

Transmission System Solution

With the rapid expansion of long-distance optical cable transmission and local network scale, centralized maintenance methods are objectively required. It is necessary to know the operation situation of the optical cable network, find the deterioration trend and prevent it. And when fiber breakage occurs, the system should respond quickly, locate the fault point accurately and shorten the fault duration.

Optical Line Protection,OLP Fiber Optic Line Protection

Optical Line Protection,OLP Fiber Optic Line Protection OLP-Optical Line Protection (OLP-Optical Line Protection) equipment is a product applied to the protection of network transmission lines. This product can realize optical power monitoring and optical path automatic switching.

In the optical communication network, the OLP monitors the optical power of the working optical fiber and the standby optical fiber in real time. When the optical power value on the current working optical fiber is detected to be lower than the set switching threshold, an alarm notification is issued and the optical fiber is automatically switched to the standby optical fiber. Realize the protection of the optical transmission system circuit.