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公开(公告)号：DE3477265D1
公开(公告)日：1989-04-20
申请号：DE3477265
申请日：1984-11-07
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , ROSSI UMBERTO
Abstract: The value of a transverse moment of any order of the electromagnetic field associated with an optical beam (and in particular the spot-size of such a beam) is determined by two successive measurements of the optical power of the beam: one measurement is a direct measurement, the other is effected after spatially modulating the transverse distribution of the electromagnetic field by a factor proportional to the n-th power of the transverse coordinate of the beam, n being the moment order. The moment can be obtained from the ratio between the two measurements. The invention includes also the apparatus for carrying out the method.
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公开(公告)号：DK241483A
公开(公告)日：1983-12-10
申请号：DK241483
申请日：1983-05-27
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , VITA PIETRO DI , POTENZA MARCELLO , ROSSI UMBERTO
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公开(公告)号：IT8267735D0
公开(公告)日：1982-06-09
申请号：IT6773582
申请日：1982-06-09
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： VITA GIANNI COPPA PIETRO DI , POTENZA MARCELLO , ROSSI UMBERTO
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公开(公告)号：IT1171039B
公开(公告)日：1987-06-10
申请号：IT6817183
申请日：1983-11-10
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , ROSSI UMBERTO
Abstract: The value of a transverse moment of any order of the electromagnetic field associated with an optical beam (and in particular the spot-size of such a beam) is determined by two successive measurements of the optical power of the beam: one measurement is a direct measurement, the other is effected after spatially modulating the transverse distribution of the electromagnetic field by a factor proportional to the n-th power of the transverse coordinate of the beam, n being the moment order. The moment can be obtained from the ratio between the two measurements. The invention includes also the apparatus for carrying out the method.
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5.发明专利
公开(公告)号：DE3369560D1
公开(公告)日：1987-03-05
申请号：DE3369560
申请日：1983-06-07
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , POTENZA MARCELLO , ROSSI UMBERTO
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Patent Agency Ranking
公开(公告)号：IT1157034B
公开(公告)日：1987-02-11
申请号：IT6773582
申请日：1982-06-09
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , POTENZA MARCELLO , ROSSI UMBERTO
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公开(公告)号：IT1156409B
公开(公告)日：1987-02-04
申请号：IT6705278
申请日：1978-01-12
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DI VITA PIETRO , ROSSI UMBERTO
IPC: G01B20060101 , G01B
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公开(公告)号：DK241483D0
公开(公告)日：1983-05-27
申请号：DK241483
申请日：1983-05-27
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , VITA PIETRO DI , POTENZA MARCELLO , ROSSI UMBERTO
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公开(公告)号：AT25290T
公开(公告)日：1987-02-15
申请号：AT83105581
申请日：1983-06-07
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , POTENZA MARCELLO , ROSSI UMBERTO
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公开(公告)号：CA1214556A
公开(公告)日：1986-11-25
申请号：CA466723
申请日：1984-10-31
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： COPPA GIANNI , DI VITA PIETRO , ROSSI UMBERTO
Abstract: The value of a transverse moment of any order of the electromagnetic field associated with an optical beam (and in particular the spot size of such a beam) is determined by two successive measurements of the optical power of the beam: one measurement is a direct measurement, whilst the other is effected after spatially modulating the transverse distribution of the electromagnetic field by a factor proportional to the n-th power of the transverse coordinate of the beam, n being the moment order. The moment can be obtained from the ratio between the two measurements. The invention also includes apparatus for carrying out the method.
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