Fiber optic splitter is an optical passive device used to realize the splitting and combining of optical signals. Fiber Splitter distributes the light energy which transmitted in one fiber to two or more fibers in a set ratio, or combines the light energy which transmitted in multiple fibers into a single fiber.
PLC splitter is Planar Light wave Circuit splitter based on optical semiconductor technology. It is one of the most important passive devices in passive optical network (PON), with multiple inputs and multiple outputs, commonly use MxN to indicate a splitter has M inputs and N outputs.The optical splitters used in fiber optic CATV systems are generally 1×2, 1×3, 1×4, 1×8, 1×9, 1×12, 1×16, 1×24, 1×32 and 1xN etc. PLC splitters are used to evenly divide one or two optical signals into multiple optical signals.
Manufacturing Process
Yingda have 2 dust free workshops for mass production with 50+workers, all segments are carefully designed with strict control of quality standards and standardized processes. All our fiber optic splitters passed 100% test before delivery, free sample available.
All fo splitter will go through about 16 production procedures before delivery:
Fiber Optic Splitter Types
Fiber optic PLC splitter has a variety of classification methods, commonly distinguish from 3 aspects: the connectors, package method and splitting ratio.
PLC Fiber Optic Splitter itself difference is the Planar lightwave circuit chip, which is tree shape such as 1×2 fiber spltiter, 1×4 splitter, 1×8 splitter, 1×16 splitter, 2×32 splitter, 2×64 PLC splitters, etc. Users can choose different input and output numbers depending on subscriber conditions or project requests.
Mini PLC Splitter is optical cord splitter pack in a stainless steel tube, steel tub size vary from the output pigtails quantity, split ratio 1×2, 1×4, 1×8 splitter tube is 60*7*4mm, 1×16 splitter is 60*12*4mm, 1×32 splitter is 80*20*4mm.
ABS PLC Splitter is put the mini plc into a ABS plastic cassette, and then split fiber optic cable into multi channels. The ABS module size can be 100×80×10mm, 120×80×18mm, 140×115×18mm. This kind of splitter module is mostly used in the fiber optic distribution termination box. Custom splitter cassette, cable length and loose tube color, connectors.
LGX PLC Splitter is to put blockless plc splitter in a plastic cassette gray color, and plug both input and output pigtails in the front adapter plates, and with figure identification, no need open the cover so as to make fiber connection.
Rack mount plc splitter is to install the splitter modules (bare splitter, steel tube splitter, abs splitter) into 19 inch rack mount fiber patch panels at factory, and this is mainly for optical divider, no fiber splicing, most of the time the front adapter port are SC or ST interface. We also called such splitters are gpon splitter.
Fiber splitter can be used in fiber optic boxes or joint enclosures for cable end termination, which is widely used in fiber to the home for PON networking, most use1x8 fiber splitter or 1×16 fiber splitter with steel tube, or abs module, because such ftth box are limited space with SC couplers, and the cable outlet quantity the same as the plc spltiter output pigtails quantity.
Yingda unbalanced splitter is made by PLC chip to realize1x3 1×5 1×6 1×9 1×12 1×24 fiber optic singal splitter, spilt ratio can be 50/50 55/45 60/40 65/35 70/30 80/20 10/90,etc, PLC technology avoid fiber joint point breaking and more stable optical performance than 1×2 fused splitters with plc splitters.
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PLC Working Principle
When a single mode fiber conducts an optical signal, the light energy is not concentrated in the core, there are a little of light will transit through the cladding layer. When the cores of two fibers are close enough, the mode field of the light transmitted in one fiber can enter the other fiber, and the optical signal is redistributed in both fibers.
Optical fiber splitter light transmission is bi-directional, also the loss value is inidependent of the transmission direction. Whether the optical signal is transmitted from the input of the optical splitter downstream to the output or from the output upstream to the input, the loss value is the same in both transmission directions. Therefore, we only need to measure the loss value in one direction of the optical splitter.
PLC chip is the key component of a fiber PLC splitter. It consists of three layers: a substrate, a waveguide and a cover. The waveguide plays a key role in the splitting process that allows a specific percentage of light to pass through. So the signal can be divided equally. It is available in 1xN (N=2, 4, 8, 16, 32, 64) and 2xN (N=2, 4, 8, 16, 32, 64) splitting ratios. The figure below shows the typical design of a 1×8 PLC splitter chip.
Application
PLC Splitter is widely used in FTTH and FTTx Networks such as BPON, GPON, EPON, and xG EPON to connect the MDF (main distribution frame) and the terminal equipment and to branch the optical signal.
International Standards
IEC61300-2, ROHS,GR-1209-CORE, GR-1221-CORE
What is standards ROHS?
RoHS stands for Restriction of Hazardous Substances, and impacts the entire electronics industry and many electrical products as well. The original RoHS, also known as Directive 2002/95/EC, originated in the European Union in 2002 and restricts the use of six hazardous materials found in electrical and electronic products. All applicable products in the EU market since July 1, 2006 must pass RoHS compliance.
What is standards IEC61300-2?
IEC61300-2 is for fiber optic standards, for more details,please refer to webstore.
What is standards GR-1209-CORE GR-1221-CORE?
An introduction to GR’s history and objective of implementation of the standard. Also touch on evolution of the standards (recently added requirements for anti-fungus) Telcordia GR1209 & GR-1221 standards outline the generic criteria for passive optical components to ensure continuous operation of the components over its lifetime. The standards specify performance tests to reflect a composite picture of various conditions. These compliance tests cover three main features of an optical splitter which are the general requirements for an outside plant component, the functional design criteria and its performance criteria. The environmental and mechanical tests outlined in the GR-1209 standard is designed to demonstrate the short term operational performance of a passive optical component. The normal lifespan of an FTTH network is at least 25 years, thus it is recommended for the environmental and mechanical test criteria to be based on the GR-1221 standard. The performance tests are intended to reflect a composite picture of various conditions. The generic criteria, desired features and test methods may be subject to change. Such changes or addition is done to enhance the reliability criteria of the passive component under test. An example of such an update is the inclusion of an anti-fungus test in the GR-1209 test standard.
Excerpted from: SENKO
Package Information
Yingda can provide various packaging methods, such as bags, blister boxes, cardboard box with foam or bubble, etc. Also, according to different customers’ shipping requirements, design requirements or different application, we can customize different packaging methods. Welcome valuable ideas to improve the package performance.
Yingda has been specialized in manufacturing splitters for more than 10 years, and can be customized according to customer needs: label, split ratio, tag, tube size, inlet and outlet pigtail length or color, connectors, package, etc.
Quality Assurance
The GR-1209 standard provides comprehensive optical performance criteria for a passive optical splitter.
There are 5 main specification that is outlined in this standard. See left details.
Frequently Asked Questions
There is no light outputs of the splitter on site construction, what is wrong?
Pls check if there is fiber broken input or output pigtails, if fiber broken, you see clearly the light come out, if not, there should be problem on the plc chip. Inside the 2 fiber array is not docked with the chip in place(not aligned with each other); curing glue off, using poor quality glue or glue is not enough, curing process is not qualified.
— Yingda use imported glue with strict quality management, and the glue is replaced regularly every day, and we will not use it after the expiration date. And all of our products use original AT6001 (NTT) coupling glue and 353ND epoxy glue, 100% full inspection before delivery, so this problem is completely eliminated.
Fiber is easy to break at 1-2mm of the steel tube, why?
Fiber fracture mainly resulted by fiber excessive bending a lot during packaging process. Bad packaging, such as bags or many pieces pack together, easily lead to extrusion deformation breakage, or the bend radius is not reasonable.
During the transportation process due to the packaging protection is not enough or not in place, excessive upside-down shaking so that the product shifts seriously, resulting in dislodgement.
So highly recommend customers to use blister box or foam in carton box packaging, reasonable bending radius and winding angle will not cause this problem.
The optical parameters are very large, what is the problem?
If the product is independent, make sure to confirm the parameter requirements with the customer before order. Production , QC and QA will strictly follow the standard execution, quality unqualified resolutely not shipped.
If optical fiber splitter is assembled with other products and the parameters are found to be incorrect, pay attention to whether the other products are not qualified.
For example, installed into the adapter, the adapter sleeve rupture, resulting in the insertion of fiber optic head is damaged or worn. Therefore, the choice of related products also need to pay attention to quality assurance. All our supporting adapters are from China TOP 1 factory and zicronia ferrule are from three circle, refuse to inferior products, which only look at the price not care about the quality.
Duplicate output number rings
As we know, fiber color code is to distinguish each multi-fibers, but if pigtails all white not colorful, it should use number rings to distinguish each channels, then wearing wrong or duplicate number rings on pigtails is possible and easy to confused. How do we solve this problem?
We created a very detailed point-to-point production specification, listing clearly how to wear number rings one by one, make complicated things to small pieces simply, take 1x8plc splitter for example.
- Input: Original
- Output: 2*4 Color (Blue/Orange/Green/Brown) from left to right
Each step of production is operated by different personnel to supervise each other, which can effectively find and avoid this problem.
A little water vapor on the end face
If you receive the goods and find that there is water vapor, it means that the end face is not cleaned well after grinding or maybe polluted by dust cap or related products.
All Yingda fiber optic splitters are produced in clean dust-free workshop, 100% end inspection twice, there will be no fiber end breakage or spoil situation. Twice check is also to prevent the water if not dry and delivered.
Number ring string color
Our number tube is made of new HYTREL material, not second-hand material.There are some factory may use bad quality plastic tubes instead, which will change during different temperature or climate change.
Hytrel is a thermoplastic polyester elastomer material that is a class of block copolymers containing a polyester hard segment and a polyether soft satin synthesis. The material combines many desirable properties of high-performance elastomers and flexible plastics, demonstrating excellent toughness and elasticity, high creep resistance, abrasion resistance, impact and flexural fatigue resistance, flexibility at low temperatures, and good performance at high temperatures. In addition, hi can resist oil, chemical solvents, etc. Due to the comprehensive properties of hytrel such as outstanding mechanical strength, excellent resilience and wide service temperature, it is suitable for many demanding applications that require flexibility missing mechanical strength and durability, including seals, bushings, sleeves and impact resistant devices. Due to the excellent overall performance of the above materials, in some scenarios to be more advantageous than traditional casing materials for fiber optic protection.
Why are the data unstable in high temperature?
Such problems maybe caused by manufacturers who do not do high and low temperature cycle test, the glue used is not good or the production process is not qualified. Our products go through several UV curing operations, all did through -40 ~ +85°C high and low temperature cycles (though it may take too much time, but for quality reasons, it is worthwhile).
All glue epoxy are original imported to ensure that all products in extreme adverse conditions can work properly.
