How to Choose Magneto Optical Switches?

Selecting the right magneto-optical switch is crucial for ensuring optimal performance and reliability in your applications. Magneto optical switches are essential components in various industries, including telecommunications, data centers, and scientific research. This article will guide you through choosing the perfect magneto-optical switch.

What is Magneto Optical Switch?

Magneto optical switches are devices that use magnetic fields to control the path of light in optical fibers. They are widely used in applications where high-speed data transmission and precise control of optical signals are required. These switches offer several advantages, including low insertion loss, high isolation, and fast switching speeds.

Key Factors to Consider

1. Switching Speed: The switching speed of a magneto optical switch is a critical factor to consider. Faster switching speeds are essential for applications that require rapid data transmission and minimal latency.

2. Insertion Loss: Insertion loss refers to the amount of optical power lost as the signal passes through the switch. Lower insertion loss is desirable for maintaining signal integrity and reducing the need for additional amplification.

3. Isolation: Isolation is the measure of how well the switch can prevent light from leaking into unwanted paths. High isolation is crucial for applications that require precise control of optical signals.

4. Wavelength Range: The wavelength range supported by the optical switch is another important consideration. Ensure that the switch is compatible with the wavelengths used in your application.

5. Reliability and Durability: The reliability and durability of the switch are essential for long-term performance. Look for switches designed to withstand your application's environmental conditions.

GLSUN Magneto Optical Switches

GLSUN is a leading provider of high-quality magneto optical switches. Our products are designed to meet the demanding requirements of various industries, offering superior performance and reliability. Here are some of the key features of GLSUN magneto optical switches:

1. High Switching Speed: offers fast switching speeds, making them ideal for high-speed data transmission applications.

2. Low Insertion Loss: designed to minimize insertion loss, ensuring that your optical signals remain strong and clear.

3. High Isolation: provides excellent isolation, preventing unwanted light leakage and ensuring precise control of optical signals.

4. Wide Wavelength Range: supports a wide range of wavelengths, making them compatible with various applications.

5. Reliability and Durability: GLSUN magneto-optical switches are built to last, with robust designs that can withstand harsh environmental conditions.

GLSUN magneto optical switches are used in a wide range of applications, including:

1. Telecommunications: used in telecommunications networks to route optical signals efficiently and reliably.

2. Data Centers: GLSUN magneto-optical switches are essential for data centers, where high-speed data transmission and precise control of optical signals are critical.

3. Scientific Research: used in scientific research applications, where precise control of optical signals is required for experiments and measurements.

Selecting the right magneto optical switch is essential for ensuring optimal performance and reliability in your applications. GLSUN offers a range of high-quality magneto optical switches that are designed to meet the demanding requirements of various industries. With fast switching speeds, low insertion loss, high isolation, and a wide wavelength range, our switches are the perfect choice for your needs.

Visit glsun.com to explore our range of magneto-optical switches and find the perfect solution for your application.

The Key to Optical Network: Optical Switch Technology and Application

With the application of DWDM systems and the development of optical communication technology, optical networking has become the trend of network development. The realization of optical network technology depends on optical devices such as optical switches, erbium-doped fiber amplifiers (EDFA) and wavelength division multiplexer (WDM), and the improvement of optical technology. DWDM (Dense Wavelength Division Multiplexing) technology is the key factor promoting all optical network development, while optical network put great opportunity and challenge in front of equipment manufacturers and telecom operators.

Optical switch is the key in all-optical switching that can achieve routing switching, wavelength selection, OXC and self-healing protection in the all-optical layer. At present, optical switch main applications are:

OXC (optical cross connect). Composed of optical switches arrays, OXC can realize dynamic optical path management, optical network fault protection and flexible new business addition. OXC requires low insertion loss, low crosstalk, short switching time and non-blocking operation. Currently, MEMS technology is put into use.

Realizing network automatic protection switching by optical switch. When fiber breaks or transmission fails, optical switch, like 1x2 optical switch, can change the transmission path to achieve business protection.

Network monitoring by 1xN optical switch. At the optical fiber test points of distal end, 1xN optical switch connects several fibers with OTDR (optical time-domain reflectometer) so as to achieve monitoring of all fibers. Or use the network analyzer to achieve network on-line analysis.

Optical fiber communication device testing. When testing optical device, fiber cable and system product, optical switch is able to test several devices so that thus simplifies the test and increases the efficiency.

OADM. It is mainly used in circular MAN, to achieve a single wavelength and a plurality of wavelengths transmitted in the optical path up and down freely. Optical switch OADM can control any dynamic wavelength up and down by software to boost the flexibility of network configuration.

Conventional optical switching technology mainly uses two technologies: solid state waveguide and optomechanical. Because of high crosstalk and power loss, solid state waveguide is limited in a switches array, not suitable to expansion in a large-scale switch array. While optomechanical has low insert loss and crosstalk, it is also not suitable to large-scale switch array for its large equipment and ordinary expansibility. So far, a lot of new technologies have emerged, mainly including MEMS, Inkjet bubble optical switch, the liquid crystal optical switch, thermo-optic effect switch, acousto-optic switches, holographic switches and so on.

The following specifications are used to examine an optical switch: switching time, array size, insert loss, reliability, expansibility and so forth. The developments of different technologies vary with the different applications. The following is a summary on the major optical switches types and their applications.

MEMS (micro-electromechanical system) optical switches. MEMS is likely to be one of the mainstreams of the core optical switch devices, because it is less affected by the format, wavelength, protocols, modulation, polarization and optical signal transmission direction, but performs better than other types in loss and scalability, which is consistent with the trend of the future development of optical network. The principle is to switch the light route by static electricity or other controls driving the movable micro mirror rotate. In spite of complicated production process, MEMS used IC technology to achieve mass-produces and decrease the individual cost.

Magneto-optic switches. As technology developing fast and expanding its horizon to wider fields, magneto-optic switches emerge as the times require. Magneto-optic switches boast higher switching speed, better durability, higher reliability, low voltage drive, and fail-safe latching. The sophisticated micro-technique is a push to high-technology industry. The applications are promising in high-end science, such as aerospace, military, fire monitoring, oil field detection, medical science and so on. Thus, a manufacture’s strength is reflected in whether it masters the magneto-optic switch technology and is able to produce it.

PON. Optical switches are widely used in PON monitoring system to build up all optical networks nowadays. PON is necessary to fulfill FTTx. With zero natural environment influence like thunder and lightning, PON is the best choice to meet the need of present networking. PON is composed of OLT, ONU, ONT and ODN, while optical switches integrated in these devices play great role to transmit mass data and monitor the networking in case of fault and ensure signal transmission.

Multi-channel optical switches. Optical switches can be integrated into a module or an equipment as multi-channel optical switches featured wide wavelength range, low crosstalk, high stability, high reliability and modularized design. At present, there are 1x4, 1x8, 1x16, 4x4, 1xN, MxN and module-type multi-channel optical switches.

Micro optical switches. It is the fundamental and widely used optical component, including 1x1, 1x2, 2x2, 2x2, D1x2,D1x2B, D2x2, 2x2F and so on. Micro optical switch is famous for its high performance, low insertion loss and compact dimension. It is an ideal component for OADM, OXC, system monitoring and protection. With compact package, it can be easily integrated into a high density optical communication system.

With the popularization of optical networking concept, optical switch technology has become the key to the future all optical network. This article briefly introduces the optical switch technology and application to help understand what is in the optical networking.

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Give MEMS A Fulcrum And It Shall Move The World
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Bandwidth Upgrade Stimulate Next Generation PON Technology Evolution

Bandwidth Upgrade Stimulate Next Generation PON Technology Evolution

    Recently, along with the growing needs of life, a variety of network-based applications are emerging. 3D TV, high-definition TV, 4K TV and even 8K television, virtual reality, and high-quality video services bring unparalleled audio-visual experience, and are becoming more common. Additionally, mobile devices like smartphones and tablet computers enable a large increase in network access devices and connections. In order to cope with such strong demand, PON technology providing high-bandwidth is widely used.

10G PON: the Mainstream Applied Technology of FTTx

      1G PON technology including EPON and GPON provides about 20-50 Mbps bandwidth for the end users. However, such bandwidth cannot fully meet the large bandwidth demand of 4K TV. Thus, ITU-T put forward XG-PON1 technology which can provide 10 Gbps (four times as GPON’s) downstream bandwidth and 2.5 Gbps (two times as GPON’s) upstream bandwidth. IEEE also proposed 10G EPON standard lifting the downstream speed up to 10Gbps. It is significant to have the equivalent bandwidth in some application fields. Nowadays, the research for 10G PON technology has been completed, a series of industry standard has been set, and the specification has been released, like the 802.3av of 10 G EPON, and ITU-T G.987 and G.988 of 10G GPON. In support of these standards, 10G PON devices can be mass-produced.

     Thanks to the mature industry chain and excellent performance, 10G PON has become the mainstream technology. It is suitable for a variety of deployment scenarios, such as buildings, residential renovation, high-end home, small and medium company broadband access, and mobile backhaul. The very key is that 10G PON and 1G PON can perfectly co-exist by reusing ODN and appropriate deployment of wavelength, which means that carriers can more easily achieve the smooth evolution of network construction. For traditional carriers, it helps improve user experience, enhance user stickiness, and maintain competitive position; for new carriers, it offers an idea to boost competitiveness in differentiation and competition.

10G PON Application: Building and Residential Renovation

      This application makes full use of the bandwidth of 10G PON technology, and provides large user covering and access bandwidth up to 100M even to 1G. Moreover, by fully using the existing resources UTP cable, twisted pair, network, etc., it can achieve rapid deployment and service fulfillment, thereby reducing capital expenditures. 

10G PON Application: High-end Home, Enterprise and Campus Broadband Access

      10G PON is the best selection for the brand new allocation serving the high-end users. It provides 1G to 10G bandwidth access sufficient to support high-end home and business users that demand high-bandwidth applications such as high-speed internet access, cloud storage, ultra-high-definition video, and 3D / VR online gaming service. In such situation, 10G PON access helps to improve user satisfaction thus consolidate, and even increase revenue.

10G PON Application: Mobile Backhaul

        In the era of mobile Internet, mobile communication occupies an important share of the communications market. Therefore, it is very necessary to offer carriers with a flexible-access and low-cost mobile traffic bearer solutions that can support massive business. And the 10G PON that can be deployed in various indoor and outdoor scenes is exactly in line with this demand. Not only 10G PON and small cell are perfect match, but also the existing FTTX resources give great convenience to LTE small cell that requires high-density deployments.

NG-PON2: 10G PON in The Future

       The existing mainstream 10G PON can ensure most communication services, yet the demand for bandwidth will be increasing. Ultra high-definition video services including VR and 8K TV, and the new generation mobile communication technology including Pre5G and 5G requires a lot of communication bandwidth, and is likely to bring greater data traffic in the future. Early in 2009, FSAN began researching NG-PON2, the next generation PON networking technology. In 2012, FSAN chose TWDM-PON as the mainstream NG-PON2 technology while PtP WDM PON as supplement. And it is regarded as the milestone in the history of NG-PON2 technology development. By the end of 2015, FSAN has finalized G.989.1、G.989.1 Amd1, G.989.1 Amd2, and a number of technical recommendations. At the same time, IEEE is in full swing researching and developing NG-EPON technology as a next-generation evolution direction for 10G EPON technology.

      At present, NG-PON2 corresponding standard G.989 series is in the research stage. And numerous details involving technical indicators and management methods await further discussion and confirmation. What’s more, the immature chain also greatly limits the commercialization of NG-PON2. Manufacturer’s NG-PON2 product is still in the prototype stage. Some of the key components like standard package optical modules are still very lacking, resulting in much higher cost of NG-PON2 than XG-PON1. Therefore, it is expected that NG-PON2 will be put into scale applications possibly after 2020.

Give MEMS A Fulcrum, and It Shall Move The World

What is MEMS?

MEMS is short for Micro-electro-mechanical Systems. It s a technology that are made using the techniques of microfabrication. So MEMS has very small size ranging 1μm~several mms.

Functional elements of MEMS are miniaturized structures: microstructure, microsensors, microactuators and microelectronics, among which the most notable components are the microsensors and microactuators. Despite small size, MEMS exerts great function in various fields including  astronomy, networking, communications and so on.

How MEMS works?

The principle is simple. Microsensors and microactuators convert energy from one form to another, like a measured mechanical signal into an electrical signal. Electromagnetic induction works through mechanical arm + electrode (made of electromagnetic coil) to drive it work. When electromagnet induction lines mechanical arm with transmission line, it's on. To the contrary, when mechanical arm is disconnected with transmission, it is off.

Features of MEMS

 MEMS is distinguished with Smart and Multidisciplinary.

MEMS is Extremely Small and available for Batch Production

MEMS boasts Multifunction and High Level of Integration

MEMS Applications

As a breakthrough technology, there are numerous possible applications for MEMS. MEMS is enabling new discoveries in science and engineering. It has been widely used in motor, medicine and environment and made great contribution to daily life. 

Besides, MEMS owns huge potentials in communication, optical network and process automation. As we are at the threshold of an era of 5G, MEMS will participates in connecting the future which requires higher, faster and better networking with  the world of mass data and information. 

At present, MEMS is cutting a figure in home security, chemistry, pharmacy and food processing. 

GLSUN MEMS Productions

As the biggest Optical Switch & component manufacturers in Asia, Glsun provides high quality MEMS series productions including MEMS Optical Switches and MEMS VOA.

With miniature size, high reliability high durability and low insertion loss, Glsun MEMS optical switches apply to optical channel monitoring, configurable OADM DWDM networks, test & measurement and instrumentation.

Glsun MEMS VOA features low insertion loss, fast response, high stability and miniature size. VOA has many applications, such as optical power controller & equalizer, EDFA gain control, and WDM channel equalizer

As is shown above, due to the tiny size, MEMS is able to apply in many significant industries to build a more convenient world. Now we are standing in a fast changing world full of information. Higher efficient, world moves faster. And MEMS contributes to high-speed data transmitting. Give MEMS a fulcrum, and it shall move the world！

More information about MEMS and optical components is on www.glsun.com