Corning Incorporated

Kenjiro Hasui

Yoshiaki Takeuchi

Alain R E Carre

Toshihiko Ono

Hiroki Takahashi

William R Birch

Paul D Frayer

Kouichi Muro

Toshio Sasaki

The present invention provides a polarizer-attached optical fiber ferrule, a polarizer-attached optical fiber connector, and a polarized-attached optical fiber connector adapter for coupling a linear polarizer with one or more optical fibers without employing a lens. The polarizer-attached optical fiber connectoris equipped with an optical fiber, a ferrulefitted on the periphery of the optical fiberand equipped with a slitreaching the optical fiber, and a linear polarizerinserted into the slitso that it crosses the optical fiber

Polarizer-equipped optical fiber ferrule, connector and connector adaptor

Polarized glass articles having a wavelength range that is broadened for high contrast-ratio applications. A method that imparts to a glass article a high contrast ratio of at least 40 dB for use as dichroic glass polarizers over a wavelength range of 880 nm to 1,690 nm while keeping a high transmission value. The method comprises the step of heating the glass article at a temperature ranging from 400 to 450&#xb0; C. in a reducing atmosphere for a period of time ranging from 12 to 30 hours. Preferably, the reducing atmosphere is hydrogen at atmospheric pressure.

Infrared broadband dichroic glass polarizer

Polarized glass articles having a wavelength range that is broadened for high contrast-ratio applications. A method that imparts to a glass article a high contrast ratio of at least 40 dB for use as dichroic glass polarizers over a wavelength range of 880 nm to 1,690 nm while keeping a high transmission value. The method comprises the step of heating the glass article at a temperature ranging from 400 to 450&deg; C. in a reducing atmosphere for a period of time ranging from 12 to 30 hours. Preferably, the reducing atmosphere is hydrogen at atmospheric pressure.

A method for forming a pattern in a film carried on a substrate includes depositing a layer of alkyl silane on a surface of a mold having a pattern, bringing the mold in contact with the film on the substrate and pressing the mold into the film so as to emboss the pattern on the mold in the film, wherein the film comprises a thermoplastic polymer, and removing the mold from the film.

Process of making a pattern in a film

A fiber-optic polarizer made by a process comprised of providing a substrate, coupling or embedding an optical single mode fiber to the substrate, making a narrow trench across the fiber at an angle, thereby bifurcating the fiber core into a first fiber core end and a second fiber core end, inserting and securing a thin polarizing material of a monolithic, non-laminated structure into the narrow trench, such that a light spot size emitted from a first fiber core is completely encompassed by the polarizing material, and the light spot size emerging from the polarizing material is substantially collected within the mode field diameter of a second fiber core. The narrow trench having a width of about 30-50 &mgr;m, and the polarizing material having a thickness of about 15-50 &mgr;m. The polarizing material having a monolithic composition. Moreover, the inventive polarizer has good reliability in terms of mechanical durability and weathering, since polarizer is fabricated on substrate in which optical path is entirely sealed. This is a process that eliminates the need to use specialized fibers or fibers that are specially treated such as those with thermally expanded cores (TEC). The process is also an alignment-free process that enables easier and faster mass-fabrication. This process produces multiple polarizers at a time.

Growing community of inventors

Shizuoka, Japan

Kenjiro Hasui