Optical Tilt Control Topology for Dynamic Amplifier Changes
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Solution Overview
Problem
Existing tilt correction systems in optical networks struggle to adapt to changing topologies within optical multiplex sections due to the installation or removal of amplifiers while carrying traffic, leading to degraded signal quality and limited system performance.
Innovation Solution
An optical network system comprising head-end and tail-end network elements, intermediate line amplifiers, and optical channel monitors that dynamically adjust tilt correction based on topology changes by storing and updating tilt control information to maintain signal quality across varying network configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tilt correction is implemented using fixed tilt control sections defined by amplifier locations, then tilt correction can be performed with stable topology, but the system cannot adapt to topology changes when amplifiers are installed or removed during traffic carrying
Solution Approach 1:
The patent applies the Dynamics principle by transforming the static tilt control section definition into a dynamic one. Instead of fixing TCS boundaries to physical amplifier locations, the system now dynamically determines TCS boundaries based on real-time operational status of optical channel monitors. When an OCM switches from non-monitoring to monitoring mode, the system automatically updates the downstream endpoint of the preceding TCS and creates a new TCS starting from that amplifier. This dynamic reconfiguration allows the tilt correction system to adapt to topology changes while maintaining signal quality.
2Adaptability or versatility
If the system continuously monitors topology changes to adapt to amplifier installations or removals, then topology adaptability improves, but system complexity and processing overhead increase
Solution Approach 1:
The patent implements the Feedback principle by utilizing the operational status information from optical channel monitors as feedback signals. The head-end processor continuously receives feedback about whether each OCM is in monitoring or non-monitoring mode, and automatically adjusts tilt control section configurations based on this feedback. This feedback mechanism enables automatic adaptation to topology changes without requiring complex manual configuration or intensive processing, as the system simply responds to the binary state changes of OCMs.
3Adaptability or versatility
If tilt control sections are reconfigured dynamically based on OCM operational status, then the system adapts to topology changes, but processing time and computational resources increase
Solution Approach 1:
The patent applies the Periodic action principle by triggering tilt control section reconfiguration only at specific moments when an OCM switches operational status, rather than continuously monitoring and processing all possible topology changes. The system waits for the periodic event of an OCM mode transition (from non-monitoring to monitoring or vice versa) before initiating the reconfiguration process. This event-driven approach minimizes processing time by avoiding unnecessary continuous analysis while still maintaining real-time adaptability to actual topology changes.
Data Source
AI summary
Optical networks, network elements, and methods of use are described herein, including an optical network comprising head-end and tail-end network elements, an optical multiplex section (OMS) connecting the head-end and tail-end network elements, and one or more intermediate line amplifiers in the OMS between the head-end and tail-end network elements. The head-end network element may store first information indicative of a first tilt control section having the head-end and tail-end network elements as endpoints; determine information indicative of a change in topology of the OMS, such as that a first intermediate line amplifier has switched from a non-monitoring to a monitoring mode; and store second information indicative of a second tilt control section having the head-end network element and a new tail-end network element, such as the first intermediate line amplifier.