Adaptive Optical Receiver for Multi-Standard Networks
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Solution Overview
Problem
Optical networking devices face challenges in supporting multiple physical layer transport standards, leading to overload conditions and bit error rate issues due to varying optical power levels, as they are typically configured for specific standards and cannot adapt to different optical transport standards without external components like attenuators.
Innovation Solution
An optical network device with an adaptive optical receiver that adjusts its photodiode characteristics, such as bias voltage, to conform to different optical transport standards, preventing overload conditions and ensuring compliance with various optical transport standards through software updates, eliminating the need for dedicated receivers for each standard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical network devices are configured for specific optical transport standards, then they can operate reliably according to defined optical power levels, but they cannot adapt to different optical transport standards without external components like attenuators
Solution Approach 1:
The optical receiver is made dynamically configurable through software control, allowing the photodiode characteristics (such as bias voltage) to be adjusted adaptively based on the detected optical transport standard. This dynamic reconfiguration enables a single device to support multiple standards without requiring external attenuators or multiple dedicated receivers.
Solution Approach 2:
The invention changes the operational parameters of the photodiode (specifically bias voltage and other characteristics) to match different optical transport standards. By programmatically adjusting these parameters, the optical receiver can conform to the specific overload levels and power levels defined by various standards such as BPON, GPON, and AE, eliminating the need for hardware modifications.
2Reliability
If optical receivers use fixed photodiode characteristics, then they maintain stable operation for a specific standard, but they experience overload conditions when receiving signals from different optical transport standards
Solution Approach 1:
The system incorporates feedback mechanisms where the optical network device identifies the optical transport standard of the coupled network and automatically configures the optical receiver parameters accordingly. This closed-loop approach ensures that the photodiode characteristics are continuously optimized to match the active standard, maintaining reliable operation while enabling multi-standard compatibility.
Solution Approach 2:
The optical receiver is designed with universal functionality to support multiple optical transport standards through software-configurable photodiode characteristics. A single receiver unit can adapt its overload level and power level parameters to match BPON, GPON, AE, or other standards, eliminating the need for standard-specific hardware while maintaining the stability and reliability required for each standard's operation.
3Reliability
If multiple dedicated optical receivers are used for different standards, then each standard receives optimal performance, but manufacturing and installation complexities increase
Solution Approach 1:
The invention merges the functionality of multiple standard-dedicated optical receivers into a single multi-functional receiver. By combining the photodiode and control logic into one adaptable unit that can be software-configured for different standards, the system achieves optimal performance for each standard while significantly simplifying manufacturing (single device type) and installation (no need to select or configure multiple different receivers).
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
The adaptive configuration of optical receivers allows for seamless operation across multiple optical transport standards, reducing the need for multiple device configurations and external components, thereby enhancing reliability and reducing manufacturing and installation complexities.
Implementation Method 1
the optical receiver may include a photodiode and a control unit to adjust a characteristic of the photodiode
Data Source
AI summary
In general, this disclosure relates to optical network devices with support for multiple physical layer transport standards. An optical network device may include an optical receiver that can be adaptively configured to support different physical layer transport standards. For example, the optical receiver may include a photodiode and a control unit to adjust a characteristic of the photodiode to support different optical physical layer transport standards on an adaptive basis. For example, the control unit may adjust the photodiode characteristic to prevent an overload condition when an optical signal is received according to the physical layer access standard.