公开(公告)号：EP0745837A3

公开(公告)日：1998-10-07

申请号：EP96108754

申请日：1996-05-31

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  NADDEO CLAUDIO ,  ROCCATO DIEGO

IPC: G01M11/02 ,  G01M11/00

CPC classification number: G01M11/332 ,  G01M11/335

Abstract: A train of transform-limited optical pulses with wavelength close to the zero-dispersion wavelength of the fibre (2) and high and variable peak power, such as to give rise to self-phase modulation, is sent into a fibre (2); the spectral broadening of the signal exiting the fibre (2) is measured for a number of values of the peak power of the pulses and the nonlinear refractive index is obtained from the angular coefficient of the straight line representing spectral broadening versus peak power. The device for carrying out the method is also provided.

公开(公告)号：DE745837T1

公开(公告)日：1999-05-20

申请号：DE96108754

申请日：1996-05-31

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  NADDEO CLAUDIO ,  ROCCATO DIEGO

IPC: G01M11/02 ,  G01M11/00

Abstract: A train of transform-limited optical pulses with wavelength close to the zero-dispersion wavelength of the fibre (2) and high and variable peak power, such as to give rise to self-phase modulation, is sent into a fibre (2); the spectral broadening of the signal exiting the fibre (2) is measured for a number of values of the peak power of the pulses and the nonlinear refractive index is obtained from the angular coefficient of the straight line representing spectral broadening versus peak power. The device for carrying out the method is also provided.

公开(公告)号：DE668640T1

公开(公告)日：1996-02-15

申请号：DE95102410

申请日：1995-02-21

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  CISTERNINO FRANCESCO ,  ROCCATO DIEGO

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/10 ,  H01S3/00 ,  H01S3/103 ,  H04B10/14

公开(公告)号：ITTO940104D0

公开(公告)日：1994-02-22

申请号：ITTO940104

申请日：1994-02-22

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  CISTERNINO FRANCO ,  ROCCATO DIEGO

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/10

公开(公告)号：IT1267397B1

公开(公告)日：1997-02-05

申请号：ITTO940104

申请日：1994-02-22

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  CISTERNINO FRANCO ,  ROCCATO DIEGO

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/10

公开(公告)号：CA2143051A1

公开(公告)日：1995-08-23

申请号：CA2143051

申请日：1995-02-21

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  CISTERNINO FRANCESCO ,  ROCCATO DIEGO

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/10

公开(公告)号：CA2177906A1

公开(公告)日：1996-12-03

申请号：CA2177906

申请日：1996-05-31

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  NADDEO CLAUDIO ,  ROCCATO DIEGO

IPC: G01M11/02 ,  G01M11/00 ,  G01N21/41

Abstract: A train of transform-limited optical pulses with wavelength close to the zero-dispersion wavelength of the fibre (2) and high and variable peak power, such as to give rise to self-phase modulation, is sent into a fibre (2); the spectral broadening of the signal exiting the fibre (2) is measured for a number of values of the peak power of the pulses and the nonlinear refractive index is obtained from the angular coefficient of the straight line representing spectral broadening versus peak power. The device for carrying out the method is also provided.

公开(公告)号：CA2150418A1

公开(公告)日：1995-12-01

申请号：CA2150418

申请日：1995-05-29

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： ARTIGLIA MASSIMO ,  CAPONI RENATO ,  CISTERNINO FRANCESCO ,  NADDEO CLAUDIO ,  ROCCATO DIEGO

IPC: G01M11/02 ,  G01M11/00 ,  G01N21/41 ,  G01N21/45

Abstract: To measure the nonlinear refractive index of an optical fibre, each pulse emitted by a source (L) is split into a pair of pulses which are sent in opposite directions into an optical-fibre Sagnac interferometric loop (AS) which includes the fibre under test (F). One of the pulses of the pair is attenuated before passing through the fibre (F) in such a way that only the other one has such a power as to induce nonlinear effects in the fibre (F). The interference between parts of pulses is analysed at the output of the loop (AS) and the nonlinear refractive index is derived from a measurement of the phase shift between the two pulses of the pair.

公开(公告)号：ITTO940104A1

公开(公告)日：1995-08-22

申请号：ITTO940104

申请日：1994-02-22

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  CISTERNINO FRANCO ,  ROCCATO DIEGO

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/10

公开(公告)号：ITTO950455D0

公开(公告)日：1995-06-02

申请号：ITTO950455

申请日：1995-06-02

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CALVANI RICCARDO ,  CAPONI RENATO ,  NADDEO CLAUDIO ,  ROCCATO DIEGO

IPC: G01M11/02 ,  G01M11/00

Abstract: A train of transform-limited optical pulses with wavelength close to the zero-dispersion wavelength of the fibre (2) and high and variable peak power, such as to give rise to self-phase modulation, is sent into a fibre (2); the spectral broadening of the signal exiting the fibre (2) is measured for a number of values of the peak power of the pulses and the nonlinear refractive index is obtained from the angular coefficient of the straight line representing spectral broadening versus peak power. The device for carrying out the method is also provided.