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Showing 1 to 8 of 8 for “"optical fiber communications"”.
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Implications of Fiber Nonlinearities on Coherent Optical Fiber Communications
A primary objective of optical system design is to satisfy the ever-increasing capacity demand for communication services. Fulfilling this target by increasing the cardinality of modulation formats is at the expense of a reduced system tolerance to transmission impairments with the capacity …
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A distributed frequency reference system for optical fiber communications
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1991.
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Transimpedance Amplifier (TIA) Design for 400 Gb/s Optical Fiber Communications
Analogcircuit/IC design for high speed optical fiber communication is a fairly new research area in Dr. Ha's group. In the first project sponsored by ETRI (Electronics and Telecommunication Research Institute) we started to design the building blocks of receiver for next generation 400 Gb/s optical …
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Hybrid Silicon Mode-Locked Laser with Improved RF Power by Impedance Matching
… data processing and sampling, large-capacity optical fiber communications based on optical time-division multiplexing (OTDM) systems. Integrating mode-locked lasers on silicon makes way for highly integrated silicon based photonic communication devices. The mode-locked laser being used in this …
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Characterization of as-grown and annealed narrow band gap nitrides grown by molecular beam epitaxy
… to supplant existing material systems used for optical fiber communications. While the field is relatively new, significant device advancements have occurred. These improvements have been driven by experimental advances in growing high quality material. The rush for device improvement has left …
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Gratings With Multiple, Independently Apodized Layers
… direction. Gratings have important roles in optical communication as spectral filters and dispersion compensators. The spectral response characteristics of gratings can be controlled by shaping the profile of the index modulation, a process called apodization. Apodizing different layers of …
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MIMO communications over multi-mode optical fibers
We consider multi-input multi-output (MIMO) communications over multi-mode fibers (MMFs). Current MMF standards, such as OM3 and OM4, use fibers with core radii of 50\,$\mu$m, allowing hundreds of modes to propagate. Unfortunately, due to physical and computational complexity limitations, we cannot …
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Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης
… of using multilevel modulation formats in optical communications systems. Following the trend in academia and industry, special focus is placed on quadrature phase-shift keying (QPSK), and specifically on polarization division multiplexed (PDM) QPSK. A special kind of receiver is …