| Patent Number |
Title Of Patent |
Date Issued |
| 5597398 |
Process for producing glass preform for optical fiber |
January 28, 1997 |
| A process for producing a porous glass preform for optical fiber by depositing fine glass particles on an outer surface of a glass material while moving the glass material, including the steps of: preheating a portion of the glass material for not less than 5 minutes to clean the por |
| 5430824 |
Optical fibre, waveguide, and optical active device |
July 4, 1995 |
| An optically active device comprising an optical fiber, a light source and an optical device is disclosed. The optical fiber comprises a core made of an optical functioning glass doped with Pr.sup.3+ as an active ion and transmits light at a first wavelength. The light source generates |
| 5337401 |
Optical functioning glass and method of manufacturing same, optical fiber, waveguide device, and |
August 9, 1994 |
| An optically active device comprising an optical fiber, a light source and a coupler is disclosed. The optical fiber has a core made of a silicate glass containing Rb and/or Cs oxide. The core is doped with Nd.sup.3+ as an active ion and transmits light at 1.3 .mu.m band. The light sourc |
| 5253322 |
Optical functioning glass and fiber amplifier |
October 12, 1993 |
| The present invention relates to an optical functioning glass containing Nd.sup.+3 as an active ion which amplifies an input light, and at least one other optical active ion different from Nd.sup.+3 which absorbs light at and near 1 .mu.m. The present invention also relates to an optical |
| 5232901 |
Method of producing superconducting ceramic wire having protective metal coating thereon |
August 3, 1993 |
| There is provided a method of producing a protective metal coated or covered superconducting ceramic wire by applying a finely pulverized protective metal-dispersed polymeric resin onto the surface of a glass wire in amorphous state of metal oxides capable of being converted into sup |
| 5073179 |
Method for controlling fiber diameter during optical fiber drawing process |
December 17, 1991 |
| There is provided a drawing process for producing an optical fiber which comprises drawing the optical fiber from a preform therefor under tension to form the optical fiber while heating and melting the preform, wherein an outer diameter of the optical fiber on which no coating has been |
| 4553995 |
Process for producing image fiber |
November 19, 1985 |
| A process for producing an image fiber comprising drawing an image fiber preform consisting of a bundle of a plurality of optical fibers each of which is drawn from an optical fiber preform and consists of a core and a cladding, in which at least one of the optical fiber preform, the opt |
