Phase distribution measurement of fibre Bragg gratings with white light interferometry

2002 ◽  
Author(s):  
I. Petermann ◽  
B. Sahlgren ◽  
J. Skaar ◽  
P.-Y. Fonjallaz ◽  
R. Stubbe
Keyword(s):  
White Light ◽  
Phase Distribution ◽  
Bragg Gratings ◽  
White Light Interferometry ◽  
Distribution Measurement ◽  
Fibre Bragg Gratings

Fibre Bragg Gratings in Harsh and Space Environments: Principles and applications

2019 ◽  
Author(s):  
Brahim Aissa ◽  
Emile I. Haddad ◽  
Roman V. Kruzelecky ◽  
Wes R. Jamroz
Keyword(s):  
Bragg Gratings ◽  
Space Environments ◽  
Fibre Bragg Gratings

Fringe order identification in optical fibre white-light interferometry using centroid algorithm method

1992 ◽  
Vol 28 (6) ◽  
pp. 553 ◽  
Author(s):  
S. Chen ◽  
A.W. Palmer ◽  
K.T.V. Grattan ◽  
B.T. Meggitt
Keyword(s):  
Optical Fibre ◽  
White Light ◽  
White Light Interferometry ◽  
Fringe Order ◽  
Centroid Algorithm

Frequency locking using cascaded fibre Bragg gratings in OFDM systems

1996 ◽  
Vol 32 (12) ◽  
pp. 1120 ◽  
Author(s):  
C.S. Park ◽  
G.Y. Lyu ◽  
D.H. Lee
Keyword(s):  
Bragg Gratings ◽  
Ofdm Systems ◽  
Frequency Locking ◽  
Fibre Bragg Gratings

Dispersion compensating, reconfigurable optical add drop multiplexer using chirped fibre Bragg gratings

1997 ◽  
Vol 33 (17) ◽  
pp. 1474 ◽  
Author(s):  
A.D. Ellis ◽  
R. Kashyap ◽  
I. Crisp ◽  
D.J. Malyon
Keyword(s):  
Bragg Gratings ◽  
Fibre Bragg Gratings

scholarly journals Integrated, Speckle-Based Displacement Measurement for Lateral Scanning White Light Interferometry

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2486
Author(s):  
Gert Behrends ◽  
Dirk Stöbener ◽  
Andreas Fischer
Keyword(s):  
White Light ◽  
Lateral Displacement ◽  
Displacement Measurement ◽  
Accurate Information ◽  
White Light Interferometry ◽  
Fully Integrated ◽  
Speckle Correlation ◽  
Dsc Measurements ◽  
Scanning White Light Interferometry ◽  
The Impact

Lateral scanning white light interferometry (LSWLI) is a promising technique for high-resolution topography measurements on moving surfaces. To achieve resolutions typically associated with white light interferometry, accurate information on the lateral displacement of the measured surface is essential. Since the uncertainty requirement for a respective displacement measurement is currently not known, Monte Carlo simulations of LSWLI measurements are carried out at first to assess the impact of the displacement uncertainty on the topography measurement. The simulation shows that the uncertainty of the displacement measurement has a larger influence on the total height uncertainty than the uncertainty of the displacing motion itself. Secondly, a sufficiently precise displacement measurement by means of digital speckle correlation (DSC) is proposed that is fully integrated into the field of view of the interferometer. In contrast to externally applied displacement measurement systems, the integrated combination of DSC with LSWLI needs no synchronization and calibration, and it is applicable for translatory as well as rotatory scans. To demonstrate the findings, an LSWLI setup with integrated DSC measurements is realized and tested on a rotating cylindrical object with a surface made of a linear encoder strip.

Broadly tunable DBR fibre laser using sampled fibre Bragg gratings

1995 ◽  
Vol 31 (1) ◽  
pp. 37-38 ◽  
Author(s):  
M. Ibsen ◽  
B.J. Eggleton ◽  
M.G. Sceats ◽  
F. Ouellette
Keyword(s):  
Bragg Gratings ◽  
Fibre Laser ◽  
Fibre Bragg Gratings

Polarization insensitive fibre-optic white-light interferometry

1995 ◽  
Vol 114 (5-6) ◽  
pp. 386-392 ◽  
Author(s):  
L.A Ferreira ◽  
J.L Santos ◽  
F Farahi
Keyword(s):  
White Light ◽  
Fibre Optic ◽  
White Light Interferometry ◽  
Polarization Insensitive
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