摘要:
A supporting system for use between two opposing supports comprised of at least two joists and at least one bridging member. The joists span between the opposing supports and are adjacent to each other. The joists each include bridging holes. The bridging members are between the adjacent joists and the bridging members are adapted to engage the bridging holes in the joists.
摘要:
An optical equalization filter and method for simultaneously suppressing inter-symbol interference within a number of dense wavelength division multiplexed channels contained within a DWDM signal wherein the filter may be positioned in any of a number of locations within a DWDM system such that an entire channel therein exhibits a raised cosine function.
摘要:
A colorless optical DQPSK demodulator and system operating over multiple, equally-spaced DWDM channels with fixed optical delays—capable of demodulating DQPSK within signals within DWDM communications wave bands on ITU grids using delay interferometers having fixed free spectral range at 20 GHz or 25 GHz.
摘要:
A method and apparatus employing statistical physics energy minimization methods to signal constellation design. By using statistical physics concepts, an energy-efficient signal constellation design algorithm (EE-SCDA) is described. In the presence of amplified spontaneous emission (ASE) noise and channel impairments, we use EE-SCDA to determine a source distribution, and represent the signal constellation design as a center of mass problem. Furthermore a discrete-time implementation of D-dimensional transceiver as well as corresponding EE polarization-division multiplexed (PDM) system is described.
摘要:
An optical probability-domain LDPC decoder suitable for implementation at 100 Gb/s and above provides large coding gains when based on large-girth LDPC codes. A basic building block, the probabilities multiplier circuit, used to implement both check node and probability node update circuits can be implemented using Mach-Zehnder delay interferometer.