Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Stephan Wielandy"'
Autor:
J. Jasapara, Stephan Wielandy
Publikováno v:
Optics letters. 30(9)
Fourier-domain optical coherence tomography is used to image the cross sections of coated optical fibers. A standard single-mode fiber with a dual coating and a hard-clad silica fiber with a single thin low-index coating are studied. The individual c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bd809b8f75193a6c783fd36b5104baf
https://pubmed.ncbi.nlm.nih.gov/15906989
https://pubmed.ncbi.nlm.nih.gov/15906989
Publikováno v:
Optics letters. 30(6)
We demonstrate a fourth-order polarimeter that employs two-photon detection to measure the fourth-order polarization coherency matrix (FOCM) of an optical signal. We measure the FOCM of picosecond pulses subjected to polarization mode dispersion (PMD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43c01c61abf484af74189d08915ce153
https://pubmed.ncbi.nlm.nih.gov/15792007
https://pubmed.ncbi.nlm.nih.gov/15792007
Publikováno v:
Optics letters. 29(12)
Using volume current analysis, we describe the scattering from intracore fiber gratings with various nonuniformities and find that effects of cross-sectional and longitudinal variations can be roughly decoupled. We show that cross-sectional asymmetry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::552e10c4c89d9882e9736b20b6cddc58
https://pubmed.ncbi.nlm.nih.gov/15233425
https://pubmed.ncbi.nlm.nih.gov/15233425
Publikováno v:
Journal of Lightwave Technology.
Using nonlinear optical detection to provide time-domain pulse distortion information and a novel differential measurement scheme to isolate the effect of chromatic dispersion and to determine its sign, real-time dispersion measurement and automatic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fced8a761cc326baf21c8f99e0c230e
https://doi.org/10.1109/ofc.2003.1247572
https://doi.org/10.1109/ofc.2003.1247572
Publikováno v:
Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing.
By combining a degree of polarization measurement, which is sensitive to PMD but insensitive to chromatic dispersion, and a nonlinear OPM measurement, which is sensitive to both, we demonstrate the ability to simultaneously monitor these two signal i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00436a0c67f90a6229f56af6c1cdc6ba
https://doi.org/10.1364/fio.2004.fmj4
https://doi.org/10.1364/fio.2004.fmj4
Autor:
Stephan Wielandy
Publikováno v:
Optics Express. 15:15402
The impact of Higher-Order Mode content on beam quality in large mode area fibers supporting several guided modes is carefully investigated. It is shown that even excellent beam quality (M2 < 1.1) in LMA fibers does not guarantee low HOM content, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::793ecb76eb54034c084a730a05d5586d
https://doi.org/10.1364/oe.15.015402
https://doi.org/10.1364/oe.15.015402
Publikováno v:
Optics Letters. 29:2593
We show that the addition of a polarization controller and bias differential group delay to a spectral polarimeter increases the amount of polarization information that can be extracted from a Stokes spectrum measurement. We use this biased spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb08de5c3351f7fa3a049cdd9550f790
https://doi.org/10.1364/ol.29.002593
https://doi.org/10.1364/ol.29.002593
Publikováno v:
Optics Letters. 29:691
We measured the polarization dependence of light scattered from a tilted fiber grating and found disagreement with previous volume-current perturbation analysis. However, by including the longitudinal E field of the guided wave we were able to obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d3cf84a871fbc1004e3dd6fbea317fe
https://doi.org/10.1364/ol.29.000691
https://doi.org/10.1364/ol.29.000691
Autor:
Michael Fishteyn, Paul S. Westbrook, Wolfgang Schairer, Gottfried Dr. Lehmann, Harald Rohde, Stephan Wielandy, P.I. Reyes
Publikováno v:
Electronics Letters. 40:690
The first demonstration of automatic dispersion control suitable for ultra-high-speed 160 Gbit/s transmission over field-deployed fibre is described. Results illustrate the need for adaptive compensation to achieve reliable data transmission at this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b9225c8326f9df55ae633baf4af1fe1
https://doi.org/10.1049/el:20040466
https://doi.org/10.1049/el:20040466
Publikováno v:
Electronics Letters. 38:1198
A differential measurement scheme using nonlinear optical detection in a silicon avalanche photodiode that was used to measure both the magnitude and sign of the accumulated chromatic dispersion of a stream of laser pulses at 1550 nm is demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32a4c26c63f1b4fff55ddedfa0258f94
https://doi.org/10.1049/el:20020833
https://doi.org/10.1049/el:20020833