A Deep Understand of Fiber Array Products
Ⅰ. Description of fiber array
Fiber array (FA) is a kind of array that uses V-groove substrate to install a bunch or a strip of optical fiber on the substrate at specified intervals.
Fiber array can connect optical waveguides to control the propagation direction of light, and control the optical coupling between optical waveguides, devices and between optical waveguides and devices.
Ⅱ. Characteristics of fiber array
1. High precision core spacing, multi-channel, low insertion loss and high reliability;
2. High precision polishing angle.
Ⅲ. General applications of fiber array
1. Planar optical waveguide devices, arrayed waveguide gratings;
2. Active / passive array optical fiber devices, MEMS;
3. Multi-channel micro-optics module.
Ⅳ. Main advantages of fiber array
The special bonding process is used to achieve accurate positioning of optical fiber to meet different requirements. The packaging design with matching thermal expansion coefficient of optical fiber array ensures that the optical fiber array board has no stress, high reliability and no optical fiber displacement under high temperature. The end face angle can be accurately ground according to requirements. It conforms to Telcordia GR-1209-CORE and GR-1221-CORE standards.
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MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies, optic switch and etc. Want to know more? Please conatct us.
Introduction of Several Uncommon Optical Fiber Arrays
Ⅰ. Different kinds of fiber arrays
For the common fiber array, we all know it very well. Today, we will introduce several uncommon fiber arrays, which are not necessarily the latest products. The product structure and application sites are relatively rare. Maybe you have known about them for a long time, but you can learn more about them together.
Ⅱ. Several uncommon optical fiber arrays
1. Fiber collimator array
Fiber collimator array is the combination of conventional single or double fiber collimator with glass capillary, G-ens or C-ens lens. If the conventional grinding 8 degree fiber array is added with lens, there will be problems in optical alignment and lens array fixing.
2. Lensed fiber array
The protruding fiber array is different from the common fiber array which is polished at a certain angle. The protruding fiber is processed into lens fiber.
3. 90° optical-turn fiber array
45° fiber array is coupled with VCSEL or Pd by 90° angle of optical path through total reflection of end face. This method has high coupling efficiency, but it is difficult due to 45° end face grinding process, high manufacturing cost and low yield. However, some manufacturers choose to turn the optical cable 90 degrees directly, which saves the cost of 45 degrees and reduces the difficulty. However, direct alignment coupling will cause certain angle mismatch, and the coupling efficiency is less than that of 45 degrees optical fiber array.
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MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies, optical line protection switch and etc. Want to know more? Please conatct us.
Introduction and Application of Planar Fiber Array
Ⅰ. The fabrication of planar fiber array needs high precision
There are many ways to make fiber array (2D fiber array), and the positioning accuracy of each method is different. If customers use multimode optical fiber and can accept the positioning accuracy of +/- 20 μm, they can use the metal substrate drilling method to achieve. The fiber array made of stack method can achieve almost the same accuracy of fiber to fiber without gap between optical fibers.
In order to achieve higher positioning accuracy, arrays must be fabricated on silicon wafers produced by semiconductor process photolithography or microporous plates machined by precision machining. In this way, positioning accuracy of 0.5 μm-2 μm can be achieved on single-mode fiber.
Ⅱ. Application of planar optical fiber array
The most typical application of 2D fiber array is optical fiber interconnection in the telecommunication industry. Even in harsh conditions, optical switching applications in the telecommunication industry also need to achieve precise positioning between optical fibers to realize fast and low loss transmission of light in the correct optical fiber channel. In order to achieve this requirement, the precise size of 2D fiber array and the precise positioning between fibers can meet the quality control requirements of Telcordia GR-1221-CORE-RELIABILITY, achieve high-precision fiber positioning and extremely low insertion / return loss. In addition, the technology can also achieve the end flatness of ≤ 1 μm and strictly control the fiber bevel in the area of 25mmx25mmd.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies and etc. Want to know about polarization maintaining fiber? Please conatct us.
Have You Ever Used the 2D Fiber Array? Come to Meisu to Buy it Now!
Ⅰ. Properties of 2D fiber array
1. Suitable for optical fibers of SM, MM, and PM
2. Arbitrary fiber length and spacing
3. Low PDL insertion loss
4. Compact structure
The fiber array is commonly used in planar optical waveguide, arrayed waveguide grating, active/passive arrayed fiber device, silicon optical integration module, micro-electro-mechanical system, multi-channel optical module, etc. Thereinto, the 2D fiber array is one of the important components in the optical switching system.
Ⅱ. Advantages of Meisu fiber array
At present, we can provide a high-precision grinding shaft for optical fiber, and also glue the optical fiber together for grinding and polishing. Our high-precision shafting equipment can complete a polarization-maintaining fiber shaft with an angle deviation of better than 0.5deg, and our end surface observation instrument can ensure the end surface grinding quality to meet special application fields, for example, interferometer. At the same time, our machining accuracy can reach the spacing as small as 5um. Meanwhile, we also customize different connectors for different application requirements of customers. Welcome to contact us to customize the fiber array.
Our 2D fiber array series, including 2D fiber array 170, fiber collimator and fiber bundle, can provide you with a variety of options. Our Meisu products can effectively perform optical cross connection for applications in spectroscopy, astronomy, and biomedical imaging. Please feel free to contact us, and we will spare no efforts to help you find the best 2D matrix v groove array for your specific application!
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies and etc. Want to know about polarization maintaining optical fiber? Please conatct us.
Fabrication Method of Fiber V Groove Array
Ⅰ. Brief introduction of fiber V groove array
The fiber V groove array in the optical communication mainly includes basal plate, cover plate and optical fiber. In general, a number of V-shaped grooves are cut at the bottom of the basal plate, the cover plate is pressed and the optical fiber that inserting into the grooves is fixed. The fiber V groove array has high requirements for materials and manufacturing technology.
Ⅱ. Fabrication method of fiber V groove array
1. Material inspection
Check whether there are scratches, damages and cracks on the base cover, whether there are impurities, damages, cracks and bumps on the basal plate, and whether the fiber is delaminated, damaged, cracked, color changed and broken by a microscope. Check the length and width of the basal plate and base cover, as well as the spacing of the fiber core on the basal plate by caliper and tape measure. The deviation of the above length and width requirements is about 0.1mm, and the above spacing deviation requirement of the fiber core is about 0.5um.
2. Fiber tape processing
The fiber tape is made by winding clamp, automatic peeling machine, microscope and meter ruler. The fiber tape has a uniform color, smooth surface, no coating damage, and obvious color change. In addition, its winding diameter is larger than 6cm and its winding length is 1.5m, which can be made according to the actual production requirements. Besides, the stripping length can be divided into two types, which are 1.5cm and 2cm.
3. Raw material cleaning
The raw materials are cleaned with alcohol, cleaning agent and deionized water by ultrasonic cleaning machine, cleaning fixture, microscope and other instruments. The cleaning time is 30 minutes, and the baking time is 120~150 minutes. Keep the raw material free of dust, foreign matter and impurity after cleaning.
4. Fiber V groove array assembly
Through the high positioning fixture and microscope, the fiber tape, basal plate and cover plate are tightly bonded by adhesive. The coated fiber strips are peeled. Place them across or in a single row and fix them on the basal plate in sequence. Put the cleaned base cover parallel to the basal plate and align it from front to back and from left to right.
5. Curing
The adhesion agent is cured by UV light source, UV box and oven.
6. Grinding
The assembled fiber V groove array is angularly grinded by grinding machine.
7. Inspection
The appearance and angle of fiber V groove array are tested by the measuring system. Its fiber core distance tolerance was required to be within 0.5um, and its grinding angle is controlled within 0.3 degrees. The high-precision grinding machine and fixture can ensure the accuracy of product angle more effectively, which is suitable for mass production.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies and etc. Want to know about polarization maintaining fiber alignment? Please conatct us.
Knowledge about V Groove Fiber Array
The V groove fiber array is an array formed by using a V-groove substrate to install a bundle of optical fibers or a fiber ribbon on the substrate at specified intervals. The machining process of the optical fiber array is that the bare optical fiber part from which the optical fiber coating is removed is placed in the V-shaped groove, pressed by the presser parts and bonded by the adhesive, the surface is finally ground and polished to the required precision. At the front end, the optical fiber is precisely positioned to be connected to the PLC, and the splices of different optical fibers are mounted on the substrate.
The V groove fiber array is mainly used to transmit information in optical communication, and it can also transmit images directly. Many optical fibers are arranged in a certain order into the geometric shape to form an optical fiber array, the optical fibers at both ends of the array are arranged in one-to-one correspondence, a optical fiber in the array is equivalent to a pixel, and the optical image at one end of the optical fiber array will be reproduced at the other end of the array. Various optical fiber endoscopes in medicine are based on this principle.
With the development of the communication field, the demand of high-speed, high-density optical fiber transmission is becoming more and more urgent. It is inevitable to expand the one-dimensional optical fiber array into a two-dimensional optical fiber array (2D fiber array, that is, optical fiber array).
Applications: planar optical waveguides, arrayed waveguide gratings; active/passive array optical fiber devices, micro-electromechanical systems; multi-channel optical modules.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies and etc. Want to know more? Please conatct us.
The Application of Magneto Optical Switch
Ⅰ. The application of magneto optical switch
Magneto optical switching elements and their applications in multi-stable switches, optical shutters, modulators, and attenuators are mainly used in high-speed all-optical communication networks, optical cross-connectors for optical communications, and various applications optical path monitoring and data networks, maintenance systems, optical fiber sensor systems as well as optical fiber measurement systems. In addition, they can be widely used in optical fiber communication systems, sensor detection fields, instrumentation fields, intelligent control fields and national defense industry fields.
Ⅱ. The features of 1*N magneto optical switch
The 1*N magneto optical switch relates to a fast magneto optical switch and provides an optical switch mainly used in high-speed all-optical communication networks, the input port of the input device and the output port of the output device are both externally connected with optical fibers, which has the advantages of low polarization sensitivity, no moving parts, small insertion loss, fast response speed, high degree of integration, small crosstalk, and small size, it can meet the requirements of strong anti-interference ability, low driving voltage, high stability, simple and reliable circuit design, and long-term continuous operation. In order to speed up the switching and reduce the required switching energy respectively, the problem of magnetic domains with opposite signs at the beginning of the conversion process is avoided. Only half the energy of the traditional switch can realize the switching of the switch state, which can save energy and has high efficiency, low power consumption, easy integration of control signals as well as good control effect.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies, multimode fiber optic switch and etc. Want to know more? Please conatct us.
The Performance Advantages of Magneto Optical Switch
The magneto optical switch using the Faraday magneto optical effect changes the effect of the magneto optical crystal on the polarization plane of incident polarized light by changing the external magnetic field, thereby achieving the effect of switching the optical path. In real life use, what are the performance advantages of magneto optical switch?
1. The magneto optical switch has the characteristics of slender structure, flexibility, large-scale high-density integration and expansion, and can design various ways of magneto optical switch array integration.
2. Magneto optical switch has the characteristics of reduced volume, improved magnetic field utilization, reduced energy consumption and reduced driving voltage, which is very convenient and efficient in actual use.
3. On account of that the magneto optical material in magneto optical switch has the characteristics of a wide variety and wide application, and with the development of laser, optical fiber communication and other fields, various types of magneto optical material such as magneto optical glass, magneto optical film, magneto optical photonic crystal and magnetic liquid have also developed rapidly, which makes it possible to realize and apply magneto optical switch in all-optical networks.
4. This kind of switch does not require a power source, and the closed state of the switch is controlled by magnetic induction. When the magnetic or iron trigger is close to the switch magnetic field, it is closed under the action of the internal magnetic force inside the switch, so it has the characteristics of non-contact, maintenance-free as well as environmental protection and so on.
5. Because the magneto optical switch uses the Faraday effect, fiber-type polarization splitter/combiner, magneto optical crystal/magneto optical glass fiber, nanosecond pulse generator and high-speed magnetic field control technology, it generally has the characteristics of simple structure, fast switching speed and high integration.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies, v-groove assembly and etc. Want to know more? Please conatct us.
The Basic Principle of Fiber Collimator
The fiber collimator is an important component in optical passive devices, which is widely used in optical communication systems. It is composed of a single-mode pigtail fiber as well as a collimating lens, and it has the characteristics of low insertion loss, high return loss, long working distance, wide bandwidth, high stability, high reliability, small beam divergence angle, small size as well as light weight. What's more, the fiber collimator can transform the divergent beam emitted from the end face of the fiber into a parallel beam, or converge and couple the parallel beam into the fiber with high efficiency, which is a basic device for making a variety of optical devices, therefore, it is widely used in beam collimation, beam coupling, optical isolator, optical attenuator, optical switch, circulator, MEMS as well as dense wavelength division multiplexer ES.
1. The principle of fiber collimator
The basic principle of optical fiber collimator is to place the fiber end face at the focal point of the collimating lens to collimate the beam, and then slightly adjust the position of the fiber end face near the focal point to obtain the required working distance, so the working distance of the collimator is related to the distance L between the fiber head and the lens. The design method of the fiber collimator is to determine the working distance of the collimator according to actual requirements, determine the distance L between the fiber head and the lens to calculate the spot size according to the Gaussian beam transmission theory, and then calculate the point accuracy of the collimator according to the light theory.
2. The advantages of fiber collimator
Low insertion loss, high return loss, small size, long working distance, wide bandwidth, high stability, and high reliability.
MEISU is a professional fiber optic switches manufacturers, we provide Linear Fiber Array, PM Fiber Device, pm fiber assemblies, fiber v groove array and etc. Want to know more? Please conatct us.
The Application of 2D Fiber Array
2D fiber array is the longitudinal expansion of the one-dimensional fiber array, which can obtain a high-density optical fiber arrangement to meet the requirements of high-throughput information transmission, dot matrix illumination, area array detection, etc. Usually silicon micromachining technology is used to make mold, which is grinded and polished after curing through optical fiber.
Fiber array has been widely used in fields such as optical communications. With the expansion of application fields, the demand for high-speed and high-density optical fiber transmission has become more and more urgent, and it is inevitable to expand the one-dimensional fiber array into a 2D fiber array (2D fiber array that is fiber panel ).
As 2D fiber array requires extremely high fiber positioning accuracy to ensure precise alignment of the micron-level fiber core diameter, which puts forward high requirements on processing and manufacturing. Due to the limited accuracy of the processing platform and the uncontrollable machining process, common micro-machining technologies, such as micro-EDM and pulsed laser processing, can only be used for two-dimensional fiber array with low precision such as two-dimensional fiber array composed of plastic optical fiber. Silicon micromachining technology makes use of lithography technology in integrated circuits and has the characteristics of high dimensional accuracy, no cumulative error, and batch processing due to parallel processing, which is the first choice for manufacturing mold for one-dimensional fiber array and also the first choice for manufacturing mold for 2D fiber array.
There are several types of typical applications of 2D fiber array. The most common is passive coupling, that is, a 2D fiber array is coupled with another 2D fiber array to achieve high-density and high-speed information transmission. In one type of application, the fiber array is coupled with the laser to achieve laser dot matrix illumination. In another type of application, the fiber array is coupled with the detector,which can realize the requirement of the area array detector or the large area array detector spliced by small array detector. There is also a type of application, which uses a two-dimensional fiber array to couple with a laser for laser dot matrix illumination, and then uses a two-dimensional fiber array to couple with the detector for corresponding laser reception, compared with flash illumination (FLASH), this scheme requires less energy and uses energy more efficiently, also, it is safer for people and has a longer laser life. In addition, polarization-preserving fiber can also be used as a two-dimensional fiber array to form a polarization-preserving two-dimensional fiber array to further improve the information transmission capability of the
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, Linear Fiber Array, PM Fiber Device, pm fiber assemblies, optical fiber v groove and etc. Want to know more? Please conatct us.
The Characteristics of 2D Fiber Array
2D fiber array, which is a longitudinal extension of one-dimensional fiber array,is to arrange multiple fibers into the required geometric shape, so as to obtain a high-density fiber array. The MEISU 2D fiber array series provide a variety of options of two-dimensional fiber arrays to meet different applications of optical cross-connection, spectroscopy, astronomy and biomedical imaging. Let us help you and provide the best 2D matrix fiber array for your specific application!
The characteristics of 2d fiber array
Fiber array (mainly one-dimensional fiber array) has been widely used in optical communications for a long time. In order to meet higher transmission rate and higher optical transmission density, it is necessary to update one-dimensional fiber array to two-dimensional fiber array.
2D fiber array is to arrange multiple fibers into the required geometric shape, which is a longitudinal extension of one-dimensional fiber array to obtain the high-density fiber array. It allows thousands of channels to be accurately positioned in the X and Y directions at the same time without any crosstalk. In order to meet the different applications of optical cross-connection, spectroscopy, astronomy and biomedical imaging, MEISU provides a variety of options for two-dimensional arrays of any pattern, including single-mode fiber, multi-mode fiber or polarization-maintaining fiber, and even lensed fiber. The high pitch precision +/-1um ensures the precision drilling machine and our unique precision positioning system. Additional metal shells and protective cables can be added to the 2D array glass assembly for easy operation.
MEISU is a professional fiber optic switches manufacturers, we provide fiber v groove array, PM Fiber Device, pm fiber assemblies, linear fiber array and etc. Want to know more? Please conatct us.
Optical Array Knowledge
Author name
How to collimate fiber optics and make the optical fiber array neat are two common questions asked in the industry. An regular optical fiber array normally includes a V−grooved substrate for holding a plurality of optical fibers (up to hundreds) and a lid for pressing the fibers arranged in the grooves. Special adhesive is usually applied into the grooves to fix the fibers and the back part of the substrate to work as strain relief area. Thus, even under the condition of a high temperature and high humidity, no great stress is generated in the adhesive. Consequently, no crevice is generated between the fixing substrate and the adhesive and accordingly, no peeling off is generated by intrusion of water.
Normally, an optical fiber array has a polished optical coupling facet where another optical path is coupled to it.
Fiber core pitch accuracy is the critical feature of fiber array. Given that the variations in the fiber core/cladding geometry may cause offset errors, the specification for the tolerances of the fiber core positions cannot be explicitly specified. What MEISU does is having the size of grooves and the space between them well calculated in accordance with the radius of the fiber. There is a formula on the minimum depth of the V-grooves, which related with the fiber radius and the opening space of the grooves. Thus, as long as a fiber, such as a linear fiber array, is properly touching the two side of the V-groove and the bottom of the lid, the +/-0.5um pitch tolerance can be guaranteed.
The most common use of the V-Groove arrays is for planar waveguide devices such as PLC Splitter and AWG. Over the past few years, Linear (one-dimension) optical fiber array has been extensively applied in optical communication, optical imaging and detection systems.
MEISU is a professional fiber optic switches manufacturers, we provide Linear Fiber Array, PM Fiber Device, pm fiber assemblies, v groove fiber array and etc. Want to know more? Please conatct us.