منابع مشابه
Ion-exchanged waveguide add/drop filter - Electronics Letters
queueing model. We define a new concept of trunk as a group of voice traffic with identical destination and DSCP. It is assumed that at least one trunk should be established between the ingress router and corresponding egress router. Each trunk has a different voice traffic arrival rate and mean service timc. We assume that there are P types of queues. In a queue of typc lc (k = I, 2, ..., P), ...
متن کاملNegligible birefringence in dual-mode ion-exchanged glass waveguide gratings.
Polarization dependence of UV-written Bragg gratings in buried ion-exchanged glass waveguides is investigated. A polarization-dependent shift in Bragg wavelength of less than 0.02 nm is measured, both for the even and the odd modes of a laterally dual-mode waveguide. The measured wavelength shift corresponds to a waveguide birefringence of the order of 10(-5), which is negligible for most appli...
متن کاملPlanar Er:Yb glass ion exchanged waveguide laser - Electronics Letters
Introduction: Er3+:Yb3+ codoping has become an effective method for producing short, efficient lasers and amplifiers in the long haul telecommunications wavelength range. Ytterbium codoping increases the pump absorption near 980nm and efficient energy transfer between the Yb’’ and the Er3+ ions enables the operation of centimetre long lasers with low Er” concentrations. This mechanism was first...
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We report the fabrication and the optical characterization of a hybrid tunable integrated optical filter. It consists of a diffused ion-exchanged channel waveguide on a borosilicate glass substrate with a cover of the same glass to form a gap filled with a holographic grating. The grating morphology, called POLICRYPS (POlymer LIquid CRYstal Polymer Slices), is made of alternating stripes of pol...
متن کاملStress in LiNbO3 proton-exchanged waveguide layers
Penetration of hydrogen ions in the crystal lattice of LiNbO3 certainly causes stress in the proton-exchanged region, especially when the level of doping is high. In the present study, a correlation between stress and the level of doping (respectively, between stress and the phase composition of the measured layer) has been obtained. Proton-exchanged waveguide layers in X, Y and Z-cut LiNbO3 ha...
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ژورنال
عنوان ژورنال: Electronics Letters
سال: 2001
ISSN: 0013-5194
DOI: 10.1049/el:20010572