Shin-Etsu Chemical Co., Ltd.

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TOP > Shin-Etsu Group Materials Guide > Optical Materials

Optical Materials

Using natural and synthetic quartz as a base, we have developed a wide array of optical materials such as synthetic quartz preform for optical communication and various optical parts. We also supply a wide range of products from raw materials to finished products.

 

Optical Materials

 

Synthetic quartz preform for optical fibers
Synthetic quartz preform is one of the product groups of Shin-Etsu Chemical that specializes in silicon chemical business. It is a rod based on synthetic quartz of high purity. The inner structure is designed so precisely that any incident light passes through without attenuation. Shin-Etsu Chemical has built a new factory in Kashima, Ibaraki Prefecture, which started operation in October 2001. The production capacity has since doubled, further establishing a system of stable supply.

Features
  • The high-level and complex production process is backed by highly reliable quality control and computer technology, ensuring a stable and high quality.
  • We were the first company to produce large-size preforms, and established mass production technology for preforms 160mmφ in diameter ×1,500 mm in length.

 

Applications
  • Fibers for optical communication, image guides, and laser transmission

 

Division / Dept.: Opto-Electronics Materials Dept. I,
Advanced Materials Division
Phone: +81-3-3246-5222
Synthetic Quartz Glass for Fiber Optics
A wide variety of different tube sizes can be offered to match specific customer needs and preform designs.

Main features
  • Good light transmittance
  • Small transmission loss

 

Applications
  • Substrate tubes in the optical fiber manufacturing processes of Modified Chemical Vapor Deposition (MCVD) and Plasma-enhanced Chemical Vapor Deposition (PCVD)
  • Jacket tubes used in the jacketing ("sleeving") process used in the production of cladded portions

 

Division / Dept.: Shin-Etsu Quartz Products Co., Ltd.
Phone: +81-3-3348-1916
https://www.sqp.co.jp/e/
Quartz Glass for Optics
Shin-Etsu Quartz has access to advanced technologies to produce synthetic quartz glass for optics by collaborating with Heraeus and Shin-Etsu Group. Thus, we can create outstanding quartz glass that has an ultra-high purity and excellent homogeneity.

Main features
  • High transmission and excellent laser durabilities in ultraviolet region
  • Low absorption in near-infrared region
  • Excellent uniformity of physical properties represented by refractive index homogeneity
  • Ultra-high purity, low thermal expansion, high heat resistance, chemical stability, etc.

 

Applications
  • Lens materials for micro photo-lithography equipment used in the manufacturing processes of semiconductors, FPD and printed circuit boards
  • Materials for various types of optical elements such as lenses, mirrors, prisms and windows

 

Division / Dept.: Shin-Etsu Quartz Products Co., Ltd.
Phone: +81-3-3348-1916
https://www.sqp.co.jp/e/
Quartz Glass for Lamps
Shin-Etsu Quartz Products Co., Ltd. offers a broad line-up, from natural quartz glass and ozone-free quartz glass all the way to ultra-high purity synthetic quartz glass suitable for use in vacuum and ultraviolet regions.

Main features
  • We carry out manufacturing with our own unique tool-free method, so the inner and outer surfaces of tubes are smooth and free of defects.
  • We are able to provide optimal sizes for lamps based on our own unique manufacturing method. We can also accommodate small-lot and quick-turnaround production.

 

Applications
  • UV lamp for sterilization and inspection
  • Projector lamp
  • UV lamp for photolithography and surface treatment

 

Division / Dept.: Shin-Etsu Quartz Products Co., Ltd.
Phone: +81-3-3348-1916
https://www.sqp.co.jp/e/
Optical fiber coatings
The coating prevents the additional loss of optical information that travels through the optical fiber (quartz glass) by constant reflection caused by microbending. Thus, the coating improves transmission characteristics and also protects the optical fibers against mechanical stress such as lateral pressure applied to the optical fiber.

Features
  • Liquid silicone rubber is the raw material, which is highly resistant to heat and cold and shows stable performance over a wide range of temperatures.

 

Lineup
  • For primaries, for buffers, for polymer clads
  • Two types of curing methods are available; heat curing type and UV curing type suitable for high-speed drawing.

 

Division / Dept.: Organic Electronics Materials Dept.,
Electronics Materials Division
Phone: +81-3-3246-5231
Highly transparent coating for optical networks
The Opticlear series are developed by the original technologies of Shin-Etsu Chemical. They are used to protect and coat various parts or modules in optical networks, and also as a highly transparent and refractive material for use in optical waveguide.

Features
  • It has excellent transparency and heat resistance.
  • Refraction index can be adjusted over a wide range with high precision.

 

Applications
  • For refraction index matching, protection, and coating of optical joints
  • As waveguide materials for optical devices

 

Division / Dept.: Organic Electronics Materials Dept.,
Electronics Materials Division
Phone: +81-3-3246-5231
Optical isolators
The optical isolators are highly reliable optical passive parts, the key components of which are manufactured by Shin-Etsu Chemical. Used in laser modules that forms the light source of optical communication and in joints of optical fibers, they support stable high-speed communication.

Features
  • They take pride in compactness and high reliability.
  • The Faraday Rotators developed by Shin-Etsu Chemical's oxide single crystal growing technology is used.
  • Shin-Etsu Chemical's Sm-Co magnet is used.
  • Isolators for 1.31μm, 1.48μm and 1.55μm are included in the lineup. Single type and double type are available.

 

Applications
  • They are incorporated in DFB laser modules used in optical fiber networks (relay system, CATV), and cut the reflected light.

 

Division / Dept.: Special Functional Products Dept.
Phone: +81-3-3246-5345