OCML Extender DWDM Passive Circuits Fiber Exhaustion
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Solution Overview
Problem
The telecommunications industry faces challenges in meeting the increasing bandwidth demands due to the exponential growth of internet traffic from various devices, leading to optical fiber exhaustion and the need for scalable and economical solutions to manage diverse data types over existing infrastructure.
Innovation Solution
The implementation of an Optical Communications Module Link (OCML) Extender using DWDM passive circuits, which assigns incoming optical signals to specific frequencies and multiplexes them onto a single optical fiber, allowing for the integration of diverse data types without active devices, thereby increasing network capacity and supporting high data rates over long distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If optical fiber capacity is increased to meet growing bandwidth demands, then network capacity is improved, but infrastructure cost and complexity increase
Solution Approach 1:
The patent combines multiple data types (voice, video, data) and multiple protocols (Ethernet, SONET/SDH, ATM) into a single optical carrier signal using DWDM technology. This merging approach allows diverse traffic to share the same optical fiber infrastructure, increasing network capacity without proportionally increasing infrastructure complexity
Solution Approach 2:
The OCML extender provides multi-functionality by handling multiple protocol types and data formats through a single device platform. The system can simultaneously process Ethernet frames, SONET/SDH signals, and ATM cells, making the infrastructure more versatile and reducing the need for separate dedicated systems for each protocol
2Productivity
If diverse data types are multiplexed onto existing optical fiber, then bandwidth utilization is improved, but signal management complexity increases
Solution Approach 1:
The patent introduces wavelength division multiplexing as an intermediary layer that separates different data types by assigning each to a specific wavelength. This mediator approach allows diverse protocols to coexist on the same fiber without direct interaction, simplifying signal management compared to time-division or packet-division methods that require complex synchronization
Solution Approach 2:
The system transitions from managing diversity in the time domain (TDM) or packet domain to managing it in the wavelength/frequency domain. By adding this dimensional separation, multiple data streams can be transmitted simultaneously without requiring complex time-synchronization or packet-routing mechanisms
3Reliability
If passive circuits are used instead of active devices, then system reliability is improved, but signal processing capability is reduced
Solution Approach 1:
The patent replaces active electronic signal processing components with passive optical components for the core multiplexing function. The DWDM multiplexer uses passive optical filters and waveguides to combine signals, eliminating the need for active electronic switching and processing in the path, thereby improving reliability while maintaining processing capability through optical-domain operations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances network capacity, maintains system performance, and provides flexible bandwidth management, enabling cost-effective transmission of multiple signals over extended distances without the need for active devices, thus addressing the challenges of fiber exhaustion and diverse data management.
Implementation Method 1
transmitting and receiving optical signals
Implementation Method 2
DWDM passive circuits, which assigns incoming optical signals to specific frequencies and multiplexes them onto a single optical fiber
Data Source
AI summary
This disclosure describes devices and methods related to multiplexing optical datasignals. A method may be disclosed. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to a first circulator. The method may also comprise combining, by the WDM, the second optical data signal and one or more third signals, and outputting an egress optical data signal to an optical switch. The method may also comprise outputting, by the optical switch, the egress optical data signal on a primary fiber.