Optical Component Alignment via Adhesive Bonding
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Solution Overview
Problem
Conventional optical transmission devices suffer from high coupling loss and low efficiency due to misalignment of light emitting surfaces and air gaps between optical components and waveguide boards, leading to increased divergence angles and reduced bandwidth in broadband communication.
Innovation Solution
A method of manufacturing a device with an optical component mounted on a substrate featuring a signal guide and electric conductive structure, where the optical component is connected using an adhesive material and electrically connected to the conductive structure, minimizing light divergence through alignment and using a refractive portion with progressive refractive indices to reduce optical loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If contacts and light emitting surface are disposed on the same side of the optical transmitter, then the structure is simplified and ease of manufacture is improved, but alignment precision deteriorates causing coupling loss
Solution Approach 1:
The patent transitions from planar disposition (contacts and light emitting surface on the same side) to three-dimensional stacking (contacts on one side, light emitting surface on the opposite side). This dimensional change enables both simplified manufacturing processes and precise alignment through the vertical arrangement of components.
2Ease of manufacture
If an air gap exists between the optical waveguide board and the optical transmitter, then the assembly process is simplified and ease of manufacture is improved, but optical coupling efficiency deteriorates due to large divergence angle
Solution Approach 1:
The patent introduces an adhesive layer as an intermediary substance between the optical waveguide board and the optical transmitter. This adhesive layer eliminates the air gap that causes light divergence, while still allowing for simplified assembly processes. The adhesive acts as a mediator that optimizes optical coupling without complicating the manufacturing procedure.
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 approach enhances coupling efficiency and reduces optical loss by aligning light transmission faces with reflective surfaces and utilizing refractive portions to manage light transmission, resulting in improved transmission efficiency and stability.
Implementation Method 1
the optical component and the substrate is connected by an adhesive material
Implementation Method 2
the substrate including a signal guide and an electric conductive structure
Implementation Method 3
configured to reflect a transmission signal from the optical component toward the transmission layer
Data Source
AI summary
A method of manufacturing a device with a optical component disposed thereon, including following steps of: preparing a substrate, the substrate including a signal guide and an electric conductive structure; and mounting an optical component on the substrate and corresponding a light transmission face of the optical component to the signal guide, wherein the optical component and the substrate is connected by an adhesive material and the optical component is electrically connected with the electric conductive structure. A transmission device being made by the method of manufacturing the device with the optical component disposed thereon as described above is further provided.