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Pioneer of quartz glass and capillaries

Glass material for capillaries

The main materials we use to produce and sell our capillaries are quartz glass (Vitreous Silica) and borosilicate glass. 
Typically, the softening temperature of quartz glass is close to 1700°C, which implies that it can withstand higher temperature than other glasses and standard metals. It also has high transparency and UV light passes through it well.  It is lead free, and contamination by foreign substances such as iron is reduced down to the ppm–ppb range.
Borosilicate glass is a glass material with thermal resistance that is second only to quartz glass.  Its softening temperature is 820°C; therefore, it can withstand higher temperatures than standard glass. It is widely used in fiber arrays for optical communication, physics and chemistry.

Fiber array

Fiber arrays are components that connect optical waveguides and optical fibers. 

There are several types of optical waveguides, including planar lightwave circuits (PLC), silicon photonics waveguides, and lithium niobite waveguides.

Common waveguides that are currently used to connect to fiber arrays are 1 x 8 splitters for fiber to the home (FTTH) and arrayed waveguide grating (AWG) for dense wavelength divisions and multiplexing (DWDM).

Capillary fiber array

Capillary fiber arrays are created by inserting fibers into the holes of a capillary, fixing it with glue and grinding the edge.  The diameter of the capillary hole is controlled with high precision and kept within ±１μ, while the pitch of fiber core is also precisely controlled and kept within ±１μ. The hole for inserting the fiber is tapered so as to make the insertion easier. 
Capillary fiber arrays with one or two cores are already used in many communications components, and the two-core type is especially widely used in small, trustworthy fiber arrays for micro integrated coherent receivers in the latest digital coherent systems. 
Fiber arrays such as multi-pitched capillaries, multi-holed capillaries, and two-dimensional capillaries are expected to be applied to future uses in optical communications, internal wiring of data centers and silicon photonics.

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花巻市役所

Marketing Support Department, SMRJ