Optical Connector Alignment Using Grating Correction Devices
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Solution Overview
Problem
Conventional methods for aligning optical connectors with optical components, such as photonic integrated circuits (PICs), are inadequate in ensuring precise alignment, leading to potential misconnections and reduced signal quality.
Innovation Solution
The use of first and second correction devices, such as gratings, on the surface of the optical component to achieve specific positional settings of the optical connector, including tilt and lateral position, allowing for precise alignment with the optical port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional alignment methods are used, then the alignment process is simple, but the alignment precision is insufficient leading to misconnections and reduced signal quality
Solution Approach 1:
The patent introduces correction devices as intermediary elements between the optical connector and the optical component. These correction devices include lateral correction mechanisms and tilt correction mechanisms that mediate the alignment process, enabling precise positioning by correcting both lateral deviations and angular misalignments through dedicated correction structures.
Solution Approach 2:
The alignment system is segmented into multiple independent correction mechanisms: lateral correction devices for positional adjustment, tilt correction devices for angular adjustment, and focus correction mechanisms. This segmentation allows each device to independently address specific alignment parameters, improving overall precision while maintaining manageable complexity through modular design.
2Manufacturing precision
If multiple correction devices are used to achieve precise alignment, then the alignment accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple correction functions into an integrated alignment system where lateral correction devices, tilt correction devices, and focus correction mechanisms work together as a unified system. The correction devices are combined with the mounting structure and optical component housing, reducing the need for separate external adjustment mechanisms and managing overall system complexity.
Solution Approach 2:
The correction devices are designed to enable self-alignment during the assembly process. The lateral correction devices and tilt correction mechanisms are configured to automatically adjust and lock into optimal positions, reducing the need for complex manual adjustment procedures and operator intervention, thereby managing operational complexity while maintaining high precision.
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 method enables robust and accurate alignment of the optical connector with the optical component, enhancing the strength and quality of the optical connection, and overcoming issues related to misalignment and signal degradation.
Implementation Method 1
the grating may define a grating period, and the grating period may be based on the wavelength of a collimated light beam used to align the optical connector with the first correction device
Data Source
AI summary
Methods and devices are provided for aligning an optical connector with an optical component, such as a photonic integrated circuit (PIC). An example method includes providing an optical component comprising at least one optical port on a surface of the optical component, where the optical component includes a first correction device and a second correction device. The method further includes aligning an optical connector with the first correction device to achieve a first positional setting of the optical connector. The method may include aligning the optical connector with the second correction device to achieve a second positional setting of the optical connector. The optical connector may be moved a predefined distance while maintaining the first and second positional settings to bring the optical connector into an operative position with respect to the at least one optical port.