Reasons for high price of optical fiber slip ring

There are many application fields in the optical fiber slip ring market 、 A very wide range , And it makes up for the defect of the conductive slip ring , In fact, this is because the price of optical fiber slip ring is too high , At present, the price of single optical fiber slip ring in the market is 2000 Yuan of above , Many projects have been stopped by the high expectations of the price of optical fiber slip rings , For security monitoring products with a market of hundreds of billions , The price of high-end monitoring ball machine is 1 Ten thousand yuan or so , The function of slip ring is very important , Manufacturers can't afford such a large price share , that , Let's take a look at the reasons why the price of optical fiber slip ring is too high !

Cause analysis of high price of optical fiber slip ring

Technical difficulty and high manufacturing cost are the two main reasons that affect the high price of optical fiber slip ring .

Optical connection technology of optical fiber coupling is divided into collimation ( Non contact free space axis alignment ) And coupling ( Use couplant ) Two technical structures , Both have advantages and disadvantages , At the beginning, the optical coupling efficiency of coupling agent connection is lower than that of collimating connection 10 Years ago , European and American professional companies and research institutes realize optical fiber coupling efficiency 75-80%, At home 75% following . With the development of technology , At present, the optical coupling efficiency of single-mode fiber is improved to 86%, The optical coupling efficiency of multimode fiber reaches 92%, There is little difference between home and abroad , in other words , The optical coupling efficiency is at 10 More than years, less than 10%.

There are many and complex factors that determine the optical coupling efficiency of optical fiber , Including light source 、 material 、 Design 、 Technical principle 、 Manufacturing technology, etc , They are all professional subjects . therefore , Here is a simple image to introduce . The diameter of the end face of the optical fiber core is only 5-9m ( As thick and thin as hair ), After the optical signal is sent from the end face of the optical fiber , To make it along the axis , Irradiate the end face of another optical fiber core at a specified incident angle , The accuracy and difficulty of operation can be considered . in addition , The light receiving area of the fiber end face is too small relative to the coupling spot , The small position shift and the change of the incident angle will lead to the rapid reduction of the coupling efficiency .

Besides , After collimation of coherent beam , Its outer diameter is not a series of balanced straight lines , But in the actual process, it converges to form a beam waist and then diverges at the same speed , The divergence speed increases after reaching a certain point , In order to maximize the fiber coupling efficiency , The incident light is in the axial direction and the beam waist is located at the end face of the optical fiber , Beam waist diameter and core light receiving surface diameter (MFD ) equal , Therefore, when the optical fiber slip ring acts , In unlimited rotation at hundreds to thousands of revolutions per minute 360 The state of , The stability and reliability of optical transmission are also ensured during high-speed rotation. The change value of the lost plug-in needs to be ensured in 0.5db within , Avoid flash memory during data transmission 、 Loss of bag, etc , Its technical requirements have gone beyond human imagination . In the manufacturing process of traditional optical fiber slip ring , The optical axis center of the existing optical fiber must be highly consistent with the geometric center of the rotation axis , The optical axis centers of the collimators at both ends must be highly parallel , The difficulty of requiring a large number of micron level precision work . Assembly effect is easily affected by personnel , The producer is required to be skilled , Have enough production experience , Skilled technicians can not do this after tightening the screws 0.001 Fine adjustment of circle . even so , Light is the alignment process of an optical fiber slip ring , Need 5-20 minute . The production efficiency of traditional optical fiber slip ring is low , The product yield is not high , It is the biggest reason why the manufacturing cost of optical fiber slip ring is too high .

Break through the technical barrier of high price of traditional optical fiber slip ring

The reason why the expensive technical barrier of optical fiber slip ring exists for a long time , The reason is that foreign manufacturers are willing to harvest the expensive technical barriers made by themselves , Domestic manufacturers follow the practice of imitating design , Lack of innovation power , Mofuron technology aims to break the expensive technical barrier of traditional optical fiber collector ring , Open up a broader market for optical fiber collector ring , Have close to 20 Nianguang communication 、 The 3000 meters of experience advantage of laser technology application is connected to 2020 In, a professional research and development team was established , For more than a year, after repeated subversion 、 summary , It breaks the expensive technical barrier of optical fiber slip ring .