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公开(公告)号：CA2059715A1
公开(公告)日：1992-07-31
申请号：CA2059715
申请日：1992-01-20
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE
Abstract: A pump system for waveguide lasers or amplifiers, formed from a waveguide having a monomode active region, in which the pump radiation is launched into a multimode guide surrounding the active region. This radiation is obtained as a sum of the radiations emitted by a plurality of independent sources. The waveguide can be a length of fibre, and the multimode guide a cladding surrounding the fibre, or the monomode and miltimode waveguide can be formed, as regions of an integrated optical guide, the multimode waveguide being formed by a confinement region and the monomode guide by an active region of the guide.
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公开(公告)号：DE3768594D1
公开(公告)日：1991-04-18
申请号：DE3768594
申请日：1987-09-23
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MODONE EROS
Abstract: The method consists of diffusing a doping compound in the region of a fluorozirconate glass support, wherein the optical guide is to be fabricated. The remaining regions are suitably masked to avoid any possible ionic exchange.
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公开(公告)号：ITTO910060D0
公开(公告)日：1991-01-30
申请号：ITTO910060
申请日：1991-01-30
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE
Abstract: A pump system for lasers or amplifiers made of a waveguide presenting a monomode active region, in which the pump radiation is launched into a multimode guide surrounding the active region. Such a radiation is obtained as a sum of the radiations emitted by a plurality of independent sources.
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公开(公告)号：CA1267575A
公开(公告)日：1990-04-10
申请号：CA547304
申请日：1987-09-18
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MODONE EROS
Abstract: A method of fabricating optical waveguides for the mid-infrared spectrum, consisting of masking the surfaces of a suitable substrate to expose only those regions where the optical guide is to be fabricated, and immersing the masked substrate into a fused salt of a doping compound consisting of a cation bonded to a fluoride, at high temperature, to permit doping of the substrate. Ionic exchange in remaining regions of the substrate is prevented. An electric field may be applied to accelerate the doping process.
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公开(公告)号：ITTO920681D0
公开(公告)日：1992-08-05
申请号：ITTO920681
申请日：1992-08-05
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE , POZZI FABIO
IPC: G01N20060101 , G01N21/00
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Patent Agency Ranking
公开(公告)号：ITTO910060A1
公开(公告)日：1992-07-31
申请号：ITTO910060
申请日：1991-01-30
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE
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公开(公告)号：ITTO911016D0
公开(公告)日：1991-12-23
申请号：ITTO911016
申请日：1991-12-23
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE
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公开(公告)号：IT1195179B
公开(公告)日：1988-10-12
申请号：IT6773286
申请日：1986-09-25
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MODONE EROS
Abstract: The method consists of diffusing a doping compound in the region of a fluorozirconate glass support, wherein the optical guide is to be fabricated. The remaining regions are suitably masked to avoid any possible ionic exchange.
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公开(公告)号：DE69421251T2
公开(公告)日：2000-03-23
申请号：DE69421251
申请日：1994-12-15
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE , POZZI FABIO
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公开(公告)号：DE69421251D1
公开(公告)日：1999-11-25
申请号：DE69421251
申请日：1994-12-15
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BERNARDI CARLO , MORASCA SALVATORE , POZZI FABIO
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