公开(公告)号：IT8667290D0

公开(公告)日：1986-04-10

申请号：IT6729086

申请日：1986-04-10

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02F

Abstract: The process employs solid-state halides heated at high temperature, under pressure conditions necessary to their vaporization, and obtains their condensation to solid state on the internal surface of a glass tube, which, after collapsing, forms the preform.

公开(公告)号：IT1082810B

公开(公告)日：1985-05-21

申请号：IT6804377

申请日：1977-05-10

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE

IPC: H01R20060101 ,  H01R

Abstract: The coupling element, for joining two optical fibres or optical cables, comprises a guide sleeve (C) into which the latter are inserted from opposite ends, with resilient tongues projecting inwards and deformable to clamp the inserted fibres (F', F") or cables. The tongues (L2) project inwards from one face of the guide sleeve (C), so as to define an opening which allows the junction zone between the inserted fibres (F', F") or cables to be visually inspected and/or allows introduction of substances for varying the refractive index at the junction. Pref. the guide sleeve (C) is formed as a hollow prism open at either end, the tongues (L2) projecting inwards from the prism base.

公开(公告)号：CH628997A5

公开(公告)日：1982-03-31

申请号：CH502978

申请日：1978-05-09

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  MICHETTI LEONARDO

IPC: G02B6/38 ,  H02G15/08 ,  G02B7/26

公开(公告)号：NO783009A

公开(公告)日：1979-03-06

申请号：NO783009

申请日：1978-09-04

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  MICHETTI LEONARDO

IPC: B65H20060101 ,  C03B20060101 ,  C03B37/00 ,  G02B20060101 ,  C03B

公开(公告)号：DE728708T1

公开(公告)日：1997-09-25

申请号：DE96102655

申请日：1996-02-22

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  GREGO GIORGIO

IPC: G02B6/00 ,  C03B37/027 ,  C03B37/12 ,  C03B37/15 ,  G02B6/024 ,  C03C25/00 ,  G02B6/16 ,  G02B6/10

Abstract: To manufacture polarisation-maintaining optical fibres, a fibre (8) is directly and continuously irradiated with at least one beam (9) of UV radiation during drawing and before application of external coatings.

公开(公告)号：DE69117426D1

公开(公告)日：1996-04-04

申请号：DE69117426

申请日：1991-10-21

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  GREGO GIORGIO

IPC: G01J9/04 ,  G01N21/41

Abstract: The system uses a monochromatic radiation source (1) and an acousto-optic modulator (2), which is driven by a periodically variable frequency. The modulator emits a first beam having the same wavelength as the source and a second beam, whose wavelength and emission direction vary with the modulating frequency. After the second beam has been collimated, radiations of both beams are sent towards the component under test and an electrical signal with varying frequency is generated representative of the beat between such radiations at the output from the component. A spectral analysis of the beat signal is carried out, and the refractive index value is derived from the position taken by the various frequencies of the beat signal on a detection plane.

公开(公告)号：CA1326156C

公开(公告)日：1994-01-18

申请号：CA543313

申请日：1987-07-29

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BIELLI PAOLO ,  BRESCIANI DANIELE ,  CONTU SALVATORE ,  COCITO GIUSEPPE

IPC: B25J19/02 ,  H01Q15/00 ,  H01Q15/14 ,  G03F7/26 ,  B25J9/00

Abstract: A method of manufacturing dichroic antenna structures makes use of a projector mounted on a mobile arm of a computer controlled machine to project the shape of selective antenna elements on the surface of an insulating layer, clad with a metallic layer and covered in turn with a photographic emulsion. Development of the emission and chemical etching of the unprotected excess conductive parts are then carried out to provide the desired antenna elements.

公开(公告)号：IT9067814A1

公开(公告)日：1992-04-23

申请号：IT6781490

申请日：1990-10-22

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  GREGO GIORGIO

IPC: G01J9/04 ,  G01N20060101 ,  G01N21/41

公开(公告)号：CA2053724A1

公开(公告)日：1992-04-23

申请号：CA2053724

申请日：1991-10-18

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE ,  GREGO GIORGIO

IPC: G01J9/04 ,  G01N21/41 ,  G01N21/84

Abstract: The system uses a monochromatic radiation source (1) and an acousto-optic modulator (2), which is driven by a periodically variable frequency. The modulator emits a first beam having the same wavelength as the source and a second beam, whose wavelength and emission direction vary with the modulating frequency. After the second beam has been collimated, radiations of both beams are sent towards the component under test and an electrical signal with varying frequency is generated representative of the beat between such radiations at the output from the component. A spectral analysis of the beat signal is carried out, and the refractive index value is derived from the position taken by the various frequencies of the beat signal on a detection plane.

公开(公告)号：CA1294496C

公开(公告)日：1992-01-21

申请号：CA533843

申请日：1987-04-03

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： COCITO GIUSEPPE

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  C03B20/00

Abstract: Optical fibre preforms for drawing in fibres for use in the mid infrared spectral range are formed by vapourizing halides under the influence of heat and reduced pressure and directing them towards the cooled internal wall of a glass tube which is translated, and also rotated if circumferentially uniform disposition is required, so as to form a preform. The preform so formed may be collapsed, and if the tube is of oxide rather than halide glass, its material is stripped from the preform.