Wavelength-Division Multiplex Systems TRIZ Cases

A multiport free-space WDM device uses a folded optical-path mechanism to separate wavelengths.

A dynamic gain equalizer adjusts wavelength-dependent transmission spectra to maintain uniform optical signal power across multiple channels.

A pseudo frequency division multiplexing transmitter applies matrix transformations to optical signals.

A wavelength varying OTDR measurement unit generates and controls light across the transmission path to acquire detailed spectrum information.

A fiber optical splitter controls fused extension length to separate output wavelengths by port.

Heterogeneous groove-type seven-core fiber enables mode division multiplexing to boost optical transmission capacity while reducing intermodal crosstalk.

An optical transmitter and receiver device assigns wavelengths automatically without monitoring light.

Orbital angular momentum beams transmit multiple data streams on one wavelength, boosting spectral efficiency and reducing mode coupling.

Physical layer management components store authentication data to verify remote antenna units, preventing unauthorized access in the network.

A passive optical network protection mechanism switches wavelength signals between working and protection paths using a controllable optical switch.

Segmenting active subcarriers with inactive gaps lowers noise accumulation to maintain optical signal-to-noise ratio over extended distances.

Spectrally shaped amplified spontaneous emission noise emulates fully occupied optical transmission spectra for capacity measurement.

Replacing analog transmitters with digital processing expands narrowcast channel capacity while reducing signal level management costs.

Passive light functional units demultiplex signal wavelengths to reduce active optical switch ports, preventing resource waste in subdivided provision areas.

Segmenting WDM signals across parallel filter paths reduces chromatic dispersion and optical loss during wideband tuning.

Network interface device collects optical power data across passive WDM channels to generate alarms, reducing monitoring complexity and fault isolation time.

A reconfigurable optical add drop multiplexer system routes signals through a wavelength selective switch to manage optical paths.

A directly modulated laser generates phase-shifted optical signals through spectral-temporal filtering.

Demultiplexers route excitation light from odd source counts to amplifiers, suppressing voltage consumption and preventing electric power waste.

Beam folding aligns parallel light paths in a compact 8-channel WDM device, reducing the physical footprint while maintaining high data transmission rates.

A transmitting node generates dummy wavelength light from an amplified spontaneous emission source to enable spectral data extraction at the receiving node.

A silicon photonics optical module multiplexes modulated signals onto a dense wavelength division multiplexing grid.

Segmented optical modules use multiplexers and demultiplexers to maintain signal quality while increasing transmission rates.

Replacing OOK transmitters with BPSK units reduces cross-phase modulation noise, allowing safe QPSK deployment for higher data rates.

Shared optical elements process C and L band signals simultaneously, reducing device complexity and costs while maintaining single-band optical characteristics.

A multi-core fiber system uses segmented cores to transmit dedicated fault detection signals alongside data streams.

A spectrum monitoring apparatus uses a variable optical bandpass filter and control unit to detect signal light levels for precise wavelength selection.

A C and L band optical link extender combines dense wavelength division multiplexing with dual-band amplification to expand network capacity.

Calculates individual channel powers per link section to minimize combined linear and nonlinear noise, improving Q factor.

Dynamic wavelength tuning resolves the trade-off between adaptability and selectivity in cascaded optical multiplexing systems.

An optical ternary content addressable memory system encodes search words on multi-wavelength signals using photodetectors for direct matching.

Arc-shaped grooves on a micro-disc modulator surface suppress secondary resonance modes, enabling high-speed modulation with reduced power consumption.

Embedding control frames in unused TDD periods stabilizes remote nodes by resolving signal delay issues.

A photonic lantern maps multi-mode optical signals to single-mode outputs, eliminating signal power diversion from the receiver path during tilt angle tracking.

A wavelength selective switch uses asymmetric port spacing to direct first-order light while keeping negative-first-order light away from active ports.

A method replaces standard single-mode optical fibers with ultra-low loss variants using dynamic simulation and blocking counter metrics to identify critical links for upgrade.

A visible light communication apparatus selects transmission wavelengths to minimize ambient light interference.

An optical loop back path connects add and drop modules for internal signal testing.

An interconnection node routes optical signals between core and access networks using omni-directional multi-degree switching.

A branching unit couples trunk signals with null-compensation light to halve fiber requirements.

QSFP CWDM transceivers wavelength multiplex downlink signals to reduce total optical fiber length and installation costs in wireless distribution systems.

Calculates optical amplifier parameters using stimulated Raman scattering power transfer as a boundary condition to reduce noise impact range.

Ethernet signals encode wavelength data to configure customer premise equipment automatically.

Capillary filter block multiplexer joins optical components via index-matching adhesive to reduce device footprint and increase port density.

MxN coupler mixes optical signals with local oscillators to generate mixed electrical outputs for coherent detection.

Optical transport network electrical layer multiplexing combines multiple interface signals into single optical channels between baseband and radio units.

Alternating frequency detunings reduce relative offsets between filter transmittance and channel spectra, restoring higher baud rates.

Optical signal processing aggregates user links without onboard demodulation, eliminating RF frequency conversion to reduce satellite mass and power.