公开(公告)号：US11280687B2

公开(公告)日：2022-03-22

申请号：US16119807

申请日：2018-08-31

申请人： VIAVI SOLUTIONS INC.

发明人： Andre Champavere

IPC分类号： G01K11/3206 ,  G01K1/00 ,  G01K3/14 ,  G01D5/353 ,  G01K11/324

摘要： In some examples, a temperature distribution sensor may include a laser source to emit a laser beam that is tunable to a first wavelength and a second wavelength for injection into a device under test (DUT). A first wavelength optical receiver may convert a return signal corresponding to the first wavelength with respect to Rayleigh backscatter or Raman backscatter Anti-Stokes. A second wavelength optical receiver may convert the return signal corresponding to the second wavelength with respect to Rayleigh backscatter or Raman backscatter Stokes. Bending loss associated with the DUT may be determined by utilizing the Rayleigh backscatter signal corresponding to the first wavelength and the Rayleigh backscatter signal corresponding to the second wavelength. Further, temperature distribution associated with the DUT may be determined by utilizing the Raman backscatter Anti-Stokes signal corresponding to the first wavelength and the Raman backscatter Stokes signal corresponding to the second wavelength.

公开(公告)号：US20220333962A1

公开(公告)日：2022-10-20

申请号：US17718416

申请日：2022-04-12

申请人： VIAVI SOLUTIONS INC.

发明人： Jeffery Stephen GRAVES ,  Vincent Lecoeuche ,  Andre Champavere

IPC分类号： G01D21/02 ,  G01K11/324 ,  G01K11/322 ,  G01K11/3206 ,  G01H9/00

摘要： According to examples, an optical fiber-based sensing membrane may include at least one optical fiber, and a substrate. The at least one optical fiber may be integrated in the substrate. The substrate may include a thickness and a material property that are specified to ascertain, via the at least one optical fiber and for a device that is contiguously engaged with a surface of the substrate, includes the substrate embedded in the device, or includes the surface of the substrate at a predetermined distance from the device, a thermal and/or a mechanical property associated with the device, or a radiation level associated with a device environment.

公开(公告)号：US10425157B2

公开(公告)日：2019-09-24

申请号：US16224552

申请日：2018-12-18

申请人： VIAVI SOLUTIONS INC.

发明人： Andre Champavere

IPC分类号： H04B10/079 ,  H04J14/02 ,  H04B10/572 ,  H04B10/25 ,  H04B10/071 ,  H04B10/075

摘要： According to examples, a wavelength identification and analysis sensor may include a wavelength transmitter, operably connectable to an input or output of a wavelength selective device of a wavelength division multiplex (WDM) network, to transmit test signals on a plurality of wavelengths into the input or output of the wavelength selective device of the WDM network. A wavelength analyzer is to detect returned signals from the input or output of the wavelength selective device of the WDM network, with each returned signal being associated with one of the transmitted test signals. Further, the wavelength analyzer is to analyze the returned signals and identify, based on the analysis of the returned signals, a wavelength associated with the input or output of the wavelength selective device of the WDM network.

公开(公告)号：US10181900B2

公开(公告)日：2019-01-15

申请号：US15397864

申请日：2017-01-04

申请人： VIAVI SOLUTIONS INC.

发明人： Andre Champavere

IPC分类号： H04B10/079 ,  H04J14/02 ,  H04B10/572 ,  H04B10/25 ,  H04B10/071 ,  H04B10/075

摘要： According to examples, a wavelength identification and analysis sensor may include a wavelength transmitter, operably connectable to an input or output of a wavelength selective device of a wavelength division multiplex (WDM) network, to transmit test signals on a plurality of wavelengths into the input or output of the wavelength selective device of the WDM network. A wavelength analyzer is to detect returned signals from the input or output of the wavelength selective device of the WDM network, with each returned signal being associated with one of the transmitted test signals. Further, the wavelength analyzer is to analyze the returned signals and identify, based on the analysis of the returned signals, a wavelength associated with the input or output of the wavelength selective device of the WDM network.