Zobrazeno 1 - 10
of 212
pro vyhledávání: '"S. J. Hewlett"'
Autor:
Christophe Peucheret, Martin Kristensen, Beata Zsigri, Palle Jeppesen, F. Floreani, S. J. Hewlett, Hans-Jürgen Deyerl, Nikolai Plougmann
Publikováno v:
Deyerl, H-J, Peucheret, C, Zsigri, B, Floreani, F, Plougmann, N, Hewlett, S J, Kristensen, M & Jeppesen, P 2005, ' A compact low dispersion fibre Bragg grating with high detuning tolerance for advanced modulation formats ', Optics Communications, no. 247, pp. 93-100 .
A compact low dispersion fibre Bragg grating is designed and fabricated with the recently developed polarisation control method. Its detuning tolerance is investigated for five different modulation formats at 10 Gbit/s showing a bandwidth utilisation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a04032b4afb20e2ae053b24ec6ab9f7a
https://doi.org/10.1016/j.optcom.2004.11.061
https://doi.org/10.1016/j.optcom.2004.11.061
Publikováno v:
Optics Communications. 152:393-402
We derive a general theory of imaging for the fluorescence direct-view microscope (DVM) in terms of the system's incoherent optical transfer function. Particular attention is given to both the form of the in-focus transfer function and the optical se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61ba7b1cd40995f82f082f91bd4c82a1
https://doi.org/10.1016/s0030-4018(98)00174-6
https://doi.org/10.1016/s0030-4018(98)00174-6
Publikováno v:
Journal of Microscopy. 188:158-172
We present an overview of recent theories for describing specimen-induced spherical aberration in confocal microscopy. One of these theories is used to compute numerically the role of spherical aberration in general confocal, and especially in biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64616be8a40a50d277f6ca43874f8f32
https://doi.org/10.1046/j.1365-2818.1997.2440802.x
https://doi.org/10.1046/j.1365-2818.1997.2440802.x
Publikováno v:
Journal of Microscopy. 187:54-61
We present a comparison between theoretical and experimental results for the axial response to a plane mirror specimen of the direct-view microscope employing multiple-pinhole arrays. The effects of pinhole size, pinhole spacing and array geometry ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1714db284bf8446d1ab661a29d9ad62
https://doi.org/10.1046/j.1365-2818.1997.2080772.x
https://doi.org/10.1046/j.1365-2818.1997.2080772.x
Publikováno v:
ResearcherID
In this paper we compare four series expansions for computing the integrals of high-aperture, vectorial diffraction theory. We present a detailed analysis of the convergence and run time of the expansions and show that, contrary to common belief, dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::752006ed95d689ff2ef3436e7f6eaa3f
https://doi.org/10.1080/09500349708232916
https://doi.org/10.1080/09500349708232916
Publikováno v:
Optical and Quantum Electronics. 28:1641-1654
Experimental transmission spectra of ultraviolet (u.v.)-written Bragg gratings in depressed- and matched-cladding fibre are characterized and compared. In particular, we discuss how the location and strength of the spectral features vary with the deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02a4a06d98c6f1753dfd8193cc5dca58
https://doi.org/10.1007/bf00331054
https://doi.org/10.1007/bf00331054
Publikováno v:
Optical and Quantum Electronics. 28:71-81
It is shown that by taking advantage of the maximum in the spectral dependence of the coupling coefficient, very broad-band symmetric and asymmetric single-mode planar couplers can be designed. The symmetric coupler allows at least 95.6% coupling bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac6d0bc3091b96bac6e733381d9302a1
https://doi.org/10.1007/bf00578552
https://doi.org/10.1007/bf00578552
Publikováno v:
Optical and Quantum Electronics. 27:987-994
By transforming the infinitex-y plane onto the unit square and using two-dimensional Fourier series expansions, the modal fields and propagation constants of dielectric waveguides can be accurately determined within the scalar (weak-guidance) regime.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::745e752b88ce93bbf8c7f346ab78a1ca
https://doi.org/10.1007/bf00558490
https://doi.org/10.1007/bf00558490
Publikováno v:
Physical Review E. 51:6297-6300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cee5d448da384208813a6d9c6b2cf32
https://doi.org/10.1103/physreve.51.6297
https://doi.org/10.1103/physreve.51.6297
Publikováno v:
ResearcherID
We review the important features of the right-angle X-junction diffraction model and discuss both its theoretical framework and its validity range. In addition, we present explicit new results from BPM calculations that show that the analytical model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc8edc5376274c63e5247784cf1917a3
https://doi.org/10.1007/bf00631752
https://doi.org/10.1007/bf00631752