Journal of Optical and Fiber Communications Reports

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Optical nonlinearities in semiconductor optical amplifier and electro-absorption modulator: their applications to all-optical regeneration
Journal of Optical and Fiber Communications Reports - Tập 2 - Trang 530-557 - 2005
T. Sakurai, N. Kobayashi
Optoelectronic devices handling high bit-rate signals of picosecond or sub-picosecond pulse repetitions are necessary for the OTDM or OTDM/WDM-mixed systems. The bit-rate is 1st or 2nd order higher than the operation speed of conventional devices. To meet the higher speed requirement, we have to develop ultrafast optoelectronic device technologies in new device principles and materials.
Application of electroabsorption modulators for high-speed transmission systems
Journal of Optical and Fiber Communications Reports - Tập 2 - Trang 140-170 - 2005
Eugen Lach, Karsten Schuh, Michael Schmidt
To achieve ultra-high bit rate signal beyond existing ETDM technology optical time division multiplexing (OTDM) is been used. In this paper the various applications of electroabsorption modulators in transmitters and receivers in ultra-high speed OTDM-based transmission systems is reviewed. Results of single channel and DWDM fiber transmission experiments are presented.
Free-space laser communications with adaptive optics: Atmospheric compensation experiments
Journal of Optical and Fiber Communications Reports - Tập 1 Số 4 - Trang 355-379 - 2004
Thomas Weyrauch, Mikhail A. Vorontsov
High-order mode based dispersion compensating modules using spatial mode conversion
Journal of Optical and Fiber Communications Reports - Tập 4 - Trang 110-172 - 2007
M. Tur, D. Menashe, Y. Japha, Y. Danziger
High-Order Mode Dispersion Compensating Modules (HOM-DCM) using spatial optical transformations for mode conversion are reviewed. It is shown that mode transformers using this technology can be designed to transform the LP01 mode of SMF fibers to the LP02 mode of specially designed dispersion compensating High-Order Mode Fiber (HOMF), with typical insertion loss of ∼1 dB, and typical extinction ra...... hiện toàn bộ
Theoretical investigations of the combined effect of fibre nonlinearities, amplifier and receiver noise in a DWDM transmission system
Journal of Optical and Fiber Communications Reports - Tập 6 - Trang 1-10 - 2009
Gurmeet Kaur, M. L. Singh, M. S. Patterh
In this paper, Optical Dense Wavelength Division Multiplexed Systems (DWDM) employing Erbium Doped Fiber Amplifiers (EDFAs) are investigated with the main emphasis on the fiber nonlinearities like Stimulated Raman Scattering (SRS) and Four Wave Mixing (FWM). Analysis has been carried out for the calculation of the bit-error-rate (BER) considering receiver noise as well. The dependence of BER on sy...... hiện toàn bộ
Fiber Bragg gratings for dispersion compensation in optical communication systems
Journal of Optical and Fiber Communications Reports - Tập 3 - Trang 61-89 - 2006
L. Gruner-Nielsen, Y. Qian, P.B. Gaarde
Dispersion compensating fibers (DCF) are the most widely used technology for dispersion compensation. A DCF without Raman amplification introduces extra loss in the system, thus increasing the need for gain in the discrete amplifiers and degrading the noise performance. The idea to additionally use the DCF as a Raman gain medium was originally proposed by Hansen et al. in 1998. [1] This was q...... hiện toàn bộ
Mode profiles and dispersion properties of silica/air photonic bandgap fibers
Journal of Optical and Fiber Communications Reports - Tập 1 - Trang 266-282 - 2004
S.E. Barkou Libori, J. Lægsgaard
With the advent of microstructured optical fibers, the possibility of guiding light in a low-index core by the photonic bandgap effect has opened up. In this paper, we review the types and properties of photonic bandgap (PBG) fibers realised or suggested in the literature. Particular attention is given to a description of the dispersion properties and their relation to the evolution of the field d...... hiện toàn bộ
Modelling photonic crystal fibers with localized functions
Journal of Optical and Fiber Communications Reports - Tập 1 - Trang 218-234 - 2004
Erik Knudsen
In this paper we present an overview of of the standard methods used when modelling photonic crystal fibers with Hermite-Gaussian functions, as well as a new variant of this modelling scheme, based solely on Hermite-Gaussian expansion series, which introduces the possibility of directly modelling fibers with finite claddings. We investigate the challenges and advantages of such a model and compare...... hiện toàn bộ
PMD compensation techniques
Journal of Optical and Fiber Communications Reports - - 2004
H. Bülow, Stéphanie Lanne
Communication techniques and coding for atmospheric turbulence channels
Journal of Optical and Fiber Communications Reports - Tập 4 - Trang 363-405 - 2007
Xiaoming Zhu, Joseph M. Kahn
In free-space optical communication links, atmospheric turbulence causes fluctuations in both the intensity and the phase of the received light signal, impairing link performance. In this paper, we describe several communication techniques to mitigate turbulence-induced intensity fluctuations, i.e., signal fading. These techniques are applicable in the regime in which the receiver aperture is smal...... hiện toàn bộ
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