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.

Introduction of GLSUN

GLSUN Group, own-patents, 3rd party ROHS tests, ISO 9001 and 14001 certified manufacturer, with factory area of 30000+m2, focus on Datacom, Telecom, RFoG, Medical Field and Petroleum Exploration etc. With a broad product portfolio and tremendous production capacity, our products include: Various kinds of Optical Switches (Relay, MEMS, Magnet, Mini type), Free Space Isolators, VOA, Splitters, WDMs, CWDMs, DWDMs, and Optical Line Protection (OLP), Optical Bypass Protection (OBP) equipment, Customization Active & Passive equipment design etc.

Glsun New Product Launched: Magneto-optical Switch

         Recently, Glsun makes breakthrough in magneto-optical technology and launches magneto-optical switches series.

        Based on Faraday rotation effect, the change of magnetic field affects the magneto-optical crystal and then changes the incident angle of polarized light, so that the light route switching is achieved. No mechanical movement during light route switching gives magneto-optical switch outstanding competitiveness against mechanical optical switch in switching time, repeatability and durability. Magneto-optical switch are switching time ≤100us, durability ≥30 billion times, repeatability ≤±0.01dB, while mechanical and MEMS optical switches are switching time ≤20ms, durability ≤100 million times and repeatability ≤±0.05dB. Besides, Glsun magneto-optical switch possesses unique advantages in stability, power and mute. The design makes optical path reversible without switching state changed, which is an innovative breakthrough in Faraday rotation effect irreversibility. The compact structure, single / double-ended, single / bipolar design take full consideration of users’ different needs. Glsun magneto-optical switches overcome bottlenecks that channels are limited in small confined, and realize multi-channels and multi-matrixes. Based on product characteristics, magneto-optical switches are suitable for applications which require long durability, high switching frequency, high response speed, long uninterrupted switching, and accurate repeatability. Magneto-optical switches are the first choice for optical fiber sensing, security monitoring, high-speed optical path protection, aerospace and military field. Currently, Glsun magneto-optical switches series is mass production available.

        Glsun R&D team achieves innovation not only in magneto-optical switches, but also in MEMS and mechanical optical switches. After 10 years research and produce, mechanical optical switches are well improved. Mini type, single ended type, multi-channel series have been launched. While MEMS optical switches have new 1xN, MxN series products with high compact, low insertion and wide working temperature range.

        Glsun started with optical component processing. Now, it is an optoelectronic communications enterprise specializing in the R&D, producing, and marketing of optical communication products, such as MEMS IC design and package, FSI optical isolators, DWDM system devices and modules, EDFA optical passive devices, optical switch protection modules and optical intelligent test system. And it also provided FTTH engineering and technical services. Glsun is changing the simple impression of ‘Made in China’ with Chinese wisdom and technology.