Wavelength-Division Multiplex Systems TRIZ Cases

Optical couplers merge signals from multiple wavelength selective switches into branch function units, reducing device cost while maintaining signal power.

A super ODU signal combines lower-rate signals across multiple wavelengths for transparent client mapping.

A WDM optical communication system uses a single multi-wavelength light source to provide carrier wavelengths for bidirectional traffic.

A network element uses an optical coupler and receiver to convert signals for processing.

Signal processing apparatus estimates frequency offsets of center and neighboring channel pilots to determine precise channel spacing in optical receivers.

An N x N arrayed waveguide grating connects network nodes via single-hop paths using one XR-Optics transceiver per node.

A reference tunable laser module provides wavelength data to control general modules in an optical transceiver.

Software-based iterative algorithms estimate incident light intensities across multiple wavelengths, eliminating physical tap splitters at the SOA input.

Adjusting pixel pitch and transmissivity patterns smooths the modulated transmission spectrum, eliminating spectral dips caused by inter-pixel gaps.

Virtual nodes encode regeneration states to minimize signal latency and improve quality while managing computational complexity.

An optical multiplexer uses an optical strength monitor to detect signal wavelength bands and extinguish dummy light in those bands.

Position-dependent mirror curvature compensates for lens aberrations, preventing communication band loss without adding extra components.

Network elements establish optical signal group data models to determine accurate noise coefficients and gains.

Redistributing power across subbands compensates for wavelength-dependent noise figures, resolving performance disparities between express and drop channels.

A coherent WDM-PON method dynamically reassigns spectral ranges to reduce active laser count.

A tunable filter reconfigures its center wavelength and bandwidth to detect individual WDM channels without pre-defined network plans.

A protocol conversion chassis bridges Ethernet and Fibre Channel interfaces using a dedicated processor for direct signal translation.

An optical receiver adjusts its decision threshold based on measured eye quality to compensate for signal degradation.

An optical network controller adjusts frequency region widths to optimize bandwidth allocation across flexible grids.

An OLT channel termination processes upstream correlation tags to generate downstream calibration messages for optical network units.

An injection-seeded Fabry-Perot laser extends transmission distance to 200 kilometers by converting frequency modulation to amplitude modulation.

A path selection system calculates link and path latency using pre-stored component parameters to identify the least latency route in an optical network.

NxN arrayed-waveguide gratings optically interconnect independent DWDM systems via wavelength-addressed switching.

An integrated arrayed waveguide filter reduces space consumption in fiber optic assemblies while supporting up to 558 connections per U space.

A compactor block removes stuff words during demultiplexing to reduce hardware complexity while maintaining data integrity across multiplexing stages.

An optical backplane routes multiplexed signals through dynamic switches to distribute data across equipment.

A monolithic liquid crystal on silicon panel performs add/drop and common port beam steering within a single optical engine.

RF sub-band demultiplexing segments wideband signals to lower ADC bandwidth requirements, reducing power consumption and cost.

Photonic compressive sensing receiver uses modulated wideband converters for analog front-end compression and downconversion.

A WDM-based light source distribution scheme adjusts individual channel power provision based on interconnect range and scale.

A broadcast-and-select node splits optical signals into multiple versions to enable automatic routing across network links.

Segmented optical paths and independent sensor placement resolve measurement precision versus device complexity trade-offs in dense wavelength multiplexing.

Pre-calculated protect paths eliminate 30-second retune delays and prevent non-converging loops during service restoration.

An Alien Wavelength Control Unit monitors and adjusts nonconforming third-party signals to prevent interference with existing WDM traffic.

Wavelength exchange generates an idler in a non-linear medium to boost signal power without adding noise, maintaining OSNR for long-distance transmission.

Dynamic tiling adapts to display size, eliminating manual scrolling required by fixed layouts to assess power levels across numerous channels.

Dynamic phase shifter control in cascaded interferometers compensates for manufacturing variations and refractive index changes to reduce crosstalk.

Integer linear programming determines optimal regenerator locations to minimize capital costs while maintaining signal quality.

Segmenting the spectrum into manageable bands allows the system to accommodate larger bandwidths while maintaining signal balance and packing density.

Segmenting the network into hub-nodes and sub-nodes removes branching losses from the main trunk, decreasing amplifier count.

An optical network unit shifts upstream frequencies via optical heterodyne mixing to enable flexible bandwidth allocation.

Segmenting calibration and operation phases reduces power consumption while maintaining thermal stability in Fabry-Perot etalon filters.

Telecommunications network maintains optical modulation scheme throughout transmission path, eliminating electrical conversion losses at access nodes.

An optical cross-connect switch uses a dispersion element and phased-matrix coupler to route wavelength channels, eliminating complex demultiplexing processes.

Moves spectral channels within reserved ranges to eliminate stranded spectrum fragmentation while maintaining continuous data transmission.

Dynamic optical circuit switching reconfigures paths to improve network resource utilization for short-lived connections.

Segmenting the filter unit from the branching node allows independent wavelength reconfiguration without retrieving undersea equipment.

Adjusting optical transmission power based on specific link loss parameters ensures uniform service quality across passive optical network terminals.

A bias control system applies a dither signal to an optical modulator and measures peak-to-peak variation to adjust the voltage.

A cyclic wavelength band permutation device reallocates optical signals across bands to balance power distribution in multiband transmission systems.