Results 101 to 110 of about 247,892 (261)

Haze and light diffraction of dielectric line-gratings

, 2023
The optical characterization of dielectric periodic line-gratings for which the period of the grating is significantly larger than the probing wavelength is investigated experimentally, numerically, and analytically.
Colette Turbil (14357841), Jean-Philippe Banon (8726616), Ingve Simonsen (1826485), Iryna Gozhyk (9755194)   +3 more
core   +1 more source

Investigation of code reconfigurable fibre Bragg gratings for Optical Code Division Multiple Access (OCDMA) and Optical Packet Switching (OPS) Networks

, 2009
This thesis documents my work in the telecommunication system laboratory at the Optoelectronics Research Centre, towards the implementation of code reconfigurable OCDMA and all-optical packet switching nodes based on fibre Bragg grating (FBG) technology.
Tian, Chun
core  

Trench width dependant deeply etched surface-defined InP gratings for low-cost high speed DFB/DBR [PDF]

, 2011
In this paper we are reporting a fabrication process for multi-section telecom lasers based on surface defined lateral gratings, which is compatible with low-cost high-throughput nano-imprint lithography.
J. P. Reithmaier, Schnabel, F., Bardella, Paolo, F. Schnabel, Afzal, S., S. Afzal, Vallone, Marco Ernesto, Reithmaier, J.P., Montrosset, Ivo, Scholz, W., W. Scholz   +10 more
core  

All-UV written integrated glass devices including planar Bragg gratings and lasers

, 2004
One attractive route to low-cost integrated optical components is the use of direct UV writing. This technique may be applied to a wide range of materials including silica-on-silicon wafers, compound oxide glasses, directly bonded glass composites and ...
Smith, P.G.R., Gawith, C.B.E., Sparrow, I.J.G., Watts, S.P., Guilhot, D.A., Adikan, M.F.R., Williams, R.B., Emmerson, G.D.   +7 more
core  

Equalisation of spectral non-uniformities in broad-band chirped fibre gratings

, 1997
The authors present a novel application of apodisation to equalise the spectral non-uniformities caused by cladding-mode losses in broad-band chirped fibre Bragg ...
Laming, R.I., Ibsen, M., Gusmeroli, V., Durkin, M.   +3 more
core  

Properties of length-apodized phase-shifted lpgs operating at the phase matching turning point

, 2012
The characteristics of length-apodized phase-shifted fiber optic long period gratings with full and partial nanostructured coatings have been explored theoretically and experimentally.
Tatam, Ralph P., James, Stephen W., Topliss, Stephen M.   +2 more
core   +1 more source

Interference and diffraction analysis of holographic gratings using the Finite-Difference Time-Domain method [PDF]

, 2010
The Finite-Difference Time-Domain method (FDTD) is based on a time-marching algorithm that has proven accurate in predicting microwave scattering from complicated objects.
Pérez Molina, Manuel, Beléndez, Augusto, Neipp, Cristian, Bleda, Sergio, Francés, Jorge   +4 more
core  

Evanescent field sensing in novel flat fiber

, 2008
Recently developed novel 'flat fiber' substrate promises flexible, long-haul integrated optical devices. Here, we present the first demonstration of one such device; an evanescent field sensor, based upon direct UV written Bragg ...
Gawith, C.B.E., A.S. Webb, P.G.R. Smith, C.B.E. Gawith, Holmes, C., F.R. Mahamd Adikan, Gates, J.C., Webb, A.S., J.K. Sahu, Payne, D.N., Smith, P.G.R., D.N. Payne, J.C. Gates, C. Holmes, Adikan, M.F.R., Sahu, J.K.   +15 more
core   +1 more source

Application of fourier analysis to the visibility of gratings

Journal of Physiology, 1968
F. Campbell, J. Robson
semanticscholar   +1 more source

Distributed-phase OCDMA encoder-decoders based on fiber Bragg gratings

, 2007
We propose and demonstrate new optical code-division multiple-access (OCDMA) encoder-decoders having a continuous phase-distribution. With the same spatial refractive index distribution as the reconfigurable optical phase encoder-decoders, they are ...
Ibsen, M., Tian, C., Petropoulos, P., Richardson, D.J., Zhang, Zhaowei   +4 more
core   +1 more source