Bi-directional Optical Array with Telecentric Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-frequency electrical signal transmission in server systems is prone to noise and signal attenuation due to impedance and propagation issues, and free-space optical signaling requires precise alignment which is challenging in environments with mechanical vibrations and thermal shifts.
Innovation Solution
Integration of arrays with monolithic optical transmitters and receivers, utilizing a telecentric optical system and dynamic alignment control to maintain image alignment and avoid distortion, allowing for bi-directional data flow with tolerance to environmental changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If free-space optical signaling is used to eliminate impedance and noise problems, then signal quality is improved, but precise alignment of optical transmitter and receiver becomes difficult due to mechanical vibrations and thermal shifts
Solution Approach 1:
The patent employs dynamic alignment control mechanisms that can adjust the positions of optical transmitters and receivers in real-time to compensate for mechanical vibrations and thermal shifts. This dynamic adjustment capability allows the system to maintain precise alignment despite environmental disturbances, resolving the contradiction between achieving high signal quality through free-space optical signaling and maintaining alignment precision in unstable environments.
Solution Approach 2:
The system incorporates feedback control loops that continuously monitor the alignment status of optical components and automatically adjust their positions to maintain optimal alignment. This feedback mechanism ensures that even when mechanical vibrations or thermal expansion cause misalignment, the system can detect and correct the deviation, thereby maintaining both signal quality and alignment precision simultaneously.
2Productivity
If high frequency electrical signals are used to achieve high data transmission rates, then data rate is improved, but timing and amplitude noise increase due to impedance and propagation delays
Solution Approach 1:
The patent replaces electrical signal transmission through copper wires with free-space optical signaling. This substitution eliminates the impedance and propagation delay issues inherent in electrical transmission, allowing high data transmission rates to be achieved without the associated timing and amplitude noise. The optical signals propagate through free space without suffering from the electrical interference and signal degradation that plague high-frequency electrical transmissions.
3Reliability
If optical transmitters and receivers are precisely aligned to achieve reliable communication, then data transmission reliability is improved, but the system becomes sensitive to mechanical vibrations and thermal shifts
Solution Approach 1:
The system employs dynamic alignment adjustment mechanisms that allow the optical transmitters and receivers to adapt their positions in response to environmental changes. This dynamic capability enables the system to maintain communication reliability while being tolerant of mechanical vibrations and thermal shifts, as the alignment can be continuously optimized despite environmental disturbances.
Solution Approach 2:
The patent utilizes parameter changes in the optical system, such as adjustable focal lengths, beam divergence angles, and detection sensitivity, to maintain reliable communication under varying environmental conditions. By dynamically adjusting these parameters, the system can compensate for the effects of mechanical vibrations and thermal shifts, thereby achieving both communication reliability and environmental adaptability.
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
Ensures high data rate and reliable bi-directional data transmission by maintaining image alignment and reducing noise and distortion, even with mechanical and thermal variations.
Implementation Method 1
utilizing a telecentric optical system and dynamic alignment control to maintain image alignment and avoid distortion
Implementation Method 2
Free-space optical signaling tends to reduce or eliminate impedance and noise problems associated with electrical signals
Data Source
AI summary
A system for bi-directional data transmission includes a first array coupled to a first subsystem and a second array coupled to a second subsystem. The first array includes a first plurality of transmitters that produce first optical signals that are transmitted through free space, and a first plurality of receivers. The second array includes a second plurality of transmitters that produce second optical signals that are transmitted through free space to the first plurality of receivers, and a second plurality of receivers that is configured to receive the first optical signals. An image-forming apparatus is operatively positioned between the first and second arrays and is configured to concurrently form an image of the first plurality of transmitters on the second plurality of receivers and an image of the second plurality of transmitters on the first plurality of receivers.