The insertion loss quoted by the optical splitter refers to the loss of each output relative to the input light in dB. The mathematical expression is: Ai=-10lgPouti/Pin, where Ai is the insertion loss of the i-th output port; Pouti is The power of the i-th output port; Pin is the optical power of the input.
(2) Additional losses.
The additional loss is defined as the number of DBs that the sum of the optical power of all output ports is lost relative to the input optical power. It is worth mentioning that, for the fiber coupler, the additional loss is an indicator that reflects the quality of the device manufacturing process, and reflects the inherent loss of the device manufacturing process. This loss is as small as possible, and is an assessment index of the quality of the production. The insertion loss only indicates the output power status of each output port. It not only has the inherent loss factor, but also considers the influence of the splitting ratio. Therefore, the difference in insertion loss between different fiber couplers does not reflect the quality of the device.
Optical splitter <br> <br> principle offer spectral optical splitter can be divided according to the principle offer fused biconical taper and planar waveguide type two, the product is a fused biconical taper for two or more fibers side Fusing; planar waveguide type is a micro-optical component type product, using photolithography technology, the formation of optical waveguides on the dielectric or semiconductor substrate, to achieve branch distribution function. The two types of spectroscopic principles are similar. They can achieve different branching quantities by changing the evanescent field mutual coupling (coupling degree, coupling length) between optical fibers and changing fiber fiber radius. On the contrary, they can combine multiple optical signals into one signal. Called a synthesizer. Fused-cone-shaped optical fiber coupler is a mainstream manufacturing technology because of its simple manufacturing method, low price, easy connection with external optical fiber, and its advantages such as mechanical vibration and temperature change.
Melt taper method is to apply two or more (or more than two) fibers that have been removed from the coating in a certain way, melted under high temperature heating, and stretched to both sides, and finally form a double cone in the heating zone. With a special waveguide structure, different splitting ratios can be obtained by controlling the twist angle of the fiber and the length of the stretching. Finally, the taper area is solidified on the quartz substrate with a curing glue and inserted into the stainless steel tube. This is the price of the optical splitter. This production process is not consistent with the thermal expansion coefficient of the cured rubber and the quartz substrate, stainless steel tube, the degree of thermal expansion and contraction at the change of the ambient temperature is inconsistent, this situation will easily lead to damage to the optical splitter, especially the split light The situation is even worse in the wild. This is the main reason why light shunts are easily damaged. Splitter production for more channels can consist of multiple splitters.
A shaft is a rotating machine element, usually circular in cross section, which is used to transmit power from one part to another, or from a machine which produces power to a machine which absorbs power.[1] The various members such as pulleys and gears are mounted on it.
Transmission shafts are used to transmit power between the source and the machine absorbing power
Spindles are crucial parts for your lawn mower cutting deck that work together with the pulleys and belts to perform clean and even mowing.
Our shaft/ axle/ spindle we made normally applied on the transmissions, lawn mowers, trucks, excavator and other vehicles, etc.
The materials we used are normally mild steel. When high strength is required, an alloy steel such as nickel, nickel-chromium or chromium-vanadium steel is used.
Shafts are generally formed by not rolling and finished to size by cold drawing or turning and grinding.
Some of the spindles are applied forging castings to save costs.
Main of our customers are from USA, CANADA, AUSTRALIA, German and Chinese domestic market.
Spindle Motor,CNC Spindle,Deck Spindle,Stainless Steel Shaft
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