公开(公告)号：NO821973A

公开(公告)日：1982-12-23

申请号：NO821973

申请日：1982-06-14

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  ROBA GIACOMO

IPC: C03B8/04 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/44 ,  C03B

CPC classification number: C03C3/06 ,  C03B37/01413 ,  C03B37/01807 ,  C03B2201/22 ,  C03B2207/81 ,  C03C13/047 ,  C03C2201/21 ,  C03C2201/22 ,  C03C2203/54 ,  G02B6/4492 ,  Y10S65/90

公开(公告)号：DE3586045D1

公开(公告)日：1992-06-17

申请号：DE3586045

申请日：1985-12-17

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  MORASCA SALVATORE

IPC: G02B6/42 ,  G02B6/28

公开(公告)号：CA1239272A

公开(公告)日：1988-07-19

申请号：CA505630

申请日：1986-04-02

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  ROBA GIACOMO

IPC: C01B9/02 ,  C01B9/08 ,  C01F7/50 ,  C01F7/58 ,  C01G19/04 ,  C01G21/16 ,  C03B8/00 ,  C03B8/02 ,  C03C3/32 ,  C03C13/04

Abstract: A process for manufacturing halide glasses for use in the manufacture of optical fibres utilizes a reaction between organometallic and interhalide or halide compounds, at a temperature between the highest melting temperature and the lowest boiling temperature of the reactants but less than the vitrification temperature of the glass forming compound produced.

公开(公告)号：DE3466207D1

公开(公告)日：1987-10-22

申请号：DE3466207

申请日：1984-06-29

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS

IPC: C03B37/018 ,  C01B17/20 ,  C03B8/00 ,  C03B8/04 ,  C03B19/14 ,  C03C3/32 ,  C03C4/10 ,  C03C13/04 ,  G02B1/00 ,  G02B6/00

Abstract: In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction between a starting chalcogen compound-particularly a hydride such as H2S, H2Se or H2Te-and a salt of the desired metal or metalloid, e.g. a chloride. The starting compound and the reactant salt preferably are vaporized at a temperature below the melting point of the resulting metal chalcogenide which thereupon precipitates in the reaction chamber.

公开(公告)号：AT29706T

公开(公告)日：1987-10-15

申请号：AT84107565

申请日：1984-06-29

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS

IPC: C03B37/018 ,  C01B17/20 ,  C03B8/00 ,  C03B8/04 ,  C03B19/14 ,  C03C3/32 ,  C03C4/10 ,  C03C13/04 ,  G02B1/00 ,  G02B6/00

Abstract: In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction between a starting chalcogen compound-particularly a hydride such as H2S, H2Se or H2Te-and a salt of the desired metal or metalloid, e.g. a chloride. The starting compound and the reactant salt preferably are vaporized at a temperature below the melting point of the resulting metal chalcogenide which thereupon precipitates in the reaction chamber.

公开(公告)号：DE3270048D1

公开(公告)日：1986-04-24

申请号：DE3270048

申请日：1982-12-20

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  ROBA GIACOMO

IPC: C03B37/02 ,  C03B37/023 ,  C03B37/025 ,  C03B37/027 ,  G02B6/00 ,  G02B6/16

公开(公告)号：NO153803B

公开(公告)日：1986-02-17

申请号：NO821973

申请日：1982-06-14

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  ROBA GIACOMO

IPC: C03B8/04 ,  C03B37/014 ,  C03B37/018 ,  C03B37/025 ,  C03C13/00 ,  C03C13/04 ,  G02B6/44 ,  C03B37/027

Abstract: Vapor deposition of doped silica in a reaction chamber on a rotating supporting surface, in the manufacture of a preform for the drawing of an optical fiber, is accompanied by the continuous admixture of deuterium with a flow of carrier gas, specifically oxygen, by which the reactants are transported to the reaction chamber. An isotopic substitution of deuterium for the hydrogen of hydroxyl groups in the reaction products shifts the major absorption peaks to wavelengths outside the minimum-attenuation range of 0.7 to 1.6 mu used for fiber-optical signaling. The proper ratio of deuterium to carrier gas is maintained with the aid of a mixer having two compartments separated by a perforated diaphragm or a thin metallic foil, one compartment being connected to a deuterium tank while the other communicates with a conduit through which the vapors entrained by the carrier gas pass to the reaction chamber.

公开(公告)号：BR8402970A

公开(公告)日：1985-05-28

申请号：BR8402970

申请日：1984-06-18

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS

IPC: C03B37/018 ,  C01B17/20 ,  C03B8/00 ,  C03B8/04 ,  C03B19/14 ,  C03C3/32 ,  C03C4/10 ,  C03C13/04 ,  G02B1/00 ,  G02B6/00 ,  C01G28/00 ,  C01G30/00 ,  C01G9/04 ,  C01G17/04 ,  C01G19/06 ,  C01G19/08 ,  C01B25/10 ,  C01B33/08 ,  C01G11/00

Abstract: In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction between a starting chalcogen compound-particularly a hydride such as H2S, H2Se or H2Te-and a salt of the desired metal or metalloid, e.g. a chloride. The starting compound and the reactant salt preferably are vaporized at a temperature below the melting point of the resulting metal chalcogenide which thereupon precipitates in the reaction chamber.

公开(公告)号：IT8567325D0

公开(公告)日：1985-04-03

申请号：IT6732585

申请日：1985-04-03

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS ,  ROBA GIACOMO

IPC: C01B9/02 ,  C01B9/08 ,  C01F7/50 ,  C01F7/58 ,  C01G19/04 ,  C01G21/16 ,  C03B8/00 ,  C03B8/02 ,  C03C3/32 ,  C03C13/04 ,  C03C

公开(公告)号：NO842438L

公开(公告)日：1985-01-02

申请号：NO842438

申请日：1984-06-18

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODONE EROS

IPC: C01B17/20 ,  C03B37/018 ,  C03B8/00 ,  C03B8/04 ,  C03B19/14 ,  C03C3/32 ,  C03C4/10 ,  C03C13/04 ,  G02B1/00 ,  G02B6/00 ,  C03C

Abstract: In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction between a starting chalcogen compound-particularly a hydride such as H2S, H2Se or H2Te-and a salt of the desired metal or metalloid, e.g. a chloride. The starting compound and the reactant salt preferably are vaporized at a temperature below the melting point of the resulting metal chalcogenide which thereupon precipitates in the reaction chamber.