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Latest update： 02/06/2020 15:39:29

Nakahara Opto-Electronics Laboratories, Inc. 

Supporting the industry with advanced technology

We manufacture quartz glass tubes, capillaries, and rods. Our high-precision and diverse products are used in a wide range of fields including medicine, biotech, analysis, optical communications, and the semiconductor industry.  Our proprietary quartz glass drawing technique enables the manufacture of highly-precise and ultra-precision capillaries.

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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.

This company is recommended by the following support organizations.

Marketing Support Department, SMRJ
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弊社は鋳造用砂型メーカーでございます。主要製品は、油圧機械部品、タービンハウジング、自動車、鉄道、プラント関係、工作機械、、農業機械、造船シリンダーフレーム等の元となる砂型です。量産品種から少量生産に対応し、難易度の高い砂型を得意としております。 鋳鋼、鋳鉄、アルミ軽合金、銅合金等の鋳造業界のニーズに応えるために、さまざまな造型方法の企画・設計・製作までを一環して行っております。 長年培ってきた技術・品質力を元に3Dレーザースキャナを導入し、3D精密計測サービスを提供しております。スキャンデータを元にリバースエンジニアリングに対応し、3Dプリンタでの造型サービスまで展開しております。