Box-type Optical Transceiver Multiplexing Integration
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Solution Overview
Problem
Conventional box-type packaged optical transceivers have limitations due to single transmit or receive channels, requiring individual mounting of optical components with gold wire bonding and hermetic sealing, which increases complexity and reduces product yield.
Innovation Solution
Integration of multiple optical channels, including laser diodes and detectors of different wavelengths, optical multiplexers, and demultiplexers in a single box-type package, utilizing technologies like Arrayed Waveguide Grating and prism modules for signal differentiation and transmission, and hermetic sealing to reduce assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple optical channels are integrated in a single box-type package, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple optical channels (transmit and receive channels with different wavelengths) into a single box-type package, combining multiple optical components including laser diodes, detectors, multiplexers, and demultiplexers that were previously packaged separately. This merging approach reduces the number of hermetic packaging operations and gold wire bonding steps required, directly improving productivity and product yield while maintaining functional separation through wavelength division multiplexing techniques
Solution Approach 2:
The single box-type package serves multiple functions by accommodating both transmit and receive optical channels with different wavelengths simultaneously. The package structure is designed to handle multiple optical components and perform multiple operations (optical coupling, hermetic sealing, wire bonding) in a unified manner, making the packaging system universal for multi-channel optical transceivers rather than requiring separate specialized packages for each channel
2Manufacturing precision
If individual mounting with gold wire bonding and hermetic sealing is performed for each optical component, then manufacturing precision is maintained, but device complexity increases
Solution Approach 1:
The patent employs preliminary alignment and positioning structures within the box-type package that pre-establish the optical paths and component positions before final hermetic sealing. The optical components are pre-positioned with precise alignment features that maintain optical coupling accuracy throughout the assembly process, eliminating the need for complex real-time adjustment procedures during final assembly
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 integration reduces the number of hermetic packaging and optical coupling steps, simplifying the assembly process and improving product yield by enabling multi-channel optical transmission within a single package.
Implementation Method 1
utilizing technologies like Arrayed Waveguide Grating and prism modules for signal differentiation and transmission
Implementation Method 2
utilizing technologies like Arrayed Waveguide Grating and prism modules for signal differentiation and transmission
Implementation Method 3
Each optical component needs to be mounted individually on electrical elements, with gold wire bonding, hermetic sealing, and optically coupling
Data Source
AI summary
A box-type packaged optical transceiver with multiplexing capabilities includes a box-shaped housing, a cover plate, an optical receiving module, an optical emitting module, a prism module, and an optical fiber connector. The housing has a through hole and is hermetically sealed by the cover plate. The optical receiving module, the optical emitting module and the prism module are disposed in the internal space. A first incoming optical signal is transmitted to the optical receiving module through the optical fiber connector, the through hole, and the prism module, and the optical emitting module emits an outgoing second optical signal through the prism module, the through hole, and the optical fiber connector.