Optical divider which several types are there?

by:Fiber Hope     2020-07-31

light way according to the principle can be divided into molten conical and plane waveguide.

two kinds, melting, conical products are two or more optical fibers to side welding; Planar waveguide is micro-optics element type product, USES the lithography technology, in the media or optical waveguide is formed on the semiconductor substrate, achieve branch distribution function. The two types of spectral similar principle, they by changing the die field mutual coupling between optical fiber ( Coupling, coupling length) And change the optical fiber radius to achieve different sizes branch, on the other hand can also be multiplexed optical signal into a signal is called a synthesizer. Fused taper fiber coupler for producing method is simple, cheap and easy to connect to external optical fiber as a whole, and can bear the first mechanical vibration and temperature change, has become the mainstream in the market for manufacturing technology at present.

FBT fused taper divider ( 融合Bi - 锥形Tap)

will be two root ( Two or more Removal of coating layer fiber KaoRao in a certain way, under the high temperature heating molten, at the same time on both sides of the stretching, finally formed in the heating area special waveguide structure of double pyramidal form, by controlling the torsional Angle and stretching the length of the fiber, the different spectral ratio can be obtained. Finally the taper zone with curing adhesive curing on quartz substrate in stainless tubes, this is optical divider. The production technology for thermal expansion coefficient of the uv-curable adhesive isn't consistent with quartz substrate, stainless steel tube, when the temperature changes in the environment of heat bilges cold shrink degree is inconsistent, the situation is easy to cause damage of optical divider, especially the branch in the field of light, it is the most main reason for optical branching easily damaged. For more because of way of production can be used more two way.

distribution of transmission signal with fused taper fiber divider ( 融合纤维分离器) Fused taper technology is will be bound together two or more optical fibers, and then pull the cone machine melt stretching, and real-time monitoring the change of the ratio, spectral ratio requirements after melting stretching, one side retain a single fiber ( The rest of the cut) As the input, the other end is for multiple outputs. Now mature pull cone process once only 1 x 4 below. 1 x 4 or more devices, with more than 1 x 2 together. Then the overall package in the divider boxes.

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