Optical Frequency Comb Power Tuning for Link Loss Compensation
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Solution Overview
Problem
Conventional optical frequency comb sources generate optical frequency combs with a flat power characteristic, which may not be ideal due to varying link losses and receiver requirements in optical communication networks, leading to inefficient power distribution and potential losses.
Innovation Solution
The system tunes the power characteristic of an optical frequency comb by individually setting the power of each optical tone, using a controller to generate modulation parameters that adjust the power of the optical tones to compensate for variations in link losses and achieve desired power levels at receivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a flat power characteristic is generated for all optical tones, then uniform power distribution is achieved, but power losses increase due to varying link losses and receiver requirements
Solution Approach 1:
The patent applies local quality by assigning different target power levels to different optical tones based on their specific link characteristics and receiver requirements. Each optical tone's power is individually tuned to match the local needs of its destination, rather than applying a uniform power level across all tones. This resolves the contradiction by maintaining stable power distribution where needed while reducing energy losses by adapting power levels to local conditions.
Solution Approach 2:
The patent implements dynamics by making the power characteristic of optical tones adjustable and tunable through modulation parameters. The system can dynamically change the power levels of individual optical tones based on varying network conditions, link losses, and receiver requirements. This dynamic adjustment capability allows the system to optimize power distribution in real-time, resolving the contradiction between uniform distribution and energy efficiency.
2Loss of energy
If individual power tuning of optical tones is implemented, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the system measures or determines the actual power levels of optical tones and compares them against target power levels. Based on this feedback, the controller adjusts modulation parameters to achieve the desired power characteristics. This feedback loop automates the tuning process, reducing the perceived complexity for users while maintaining energy efficiency benefits.
Solution Approach 2:
The system performs self-service by automatically determining and adjusting the power levels of optical tones without requiring manual intervention. The controller autonomously generates appropriate modulation parameters based on network conditions and receiver requirements, enabling the system to self-optimize its power distribution. This reduces operational complexity while maintaining the energy efficiency advantages of individual tone tuning.
Data Source
AI summary
A method for tuning a power characteristic of an optical frequency comb includes controlling a modulating light source according to a plurality of modulation parameters to generate an optical frequency comb including a plurality of optical tones. Additionally, at least one of the plurality of modulation parameters is changed until a total power of the plurality of optical tones is greater than or equal to a minimum threshold value. Furthermore, at least one of the plurality of modulation parameters are changed until respective powers of each of the plurality of optical tones are within a predetermined proximity to respective target powers of each of the plurality of optical tones.