Optical Connector Bonding Structure for Precise Waveguide Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical connectors face issues with displacement and loss of desired optical properties due to adhesive flow during mounting, affecting the precise positioning and coupling efficiency with optical transmission lines.
Innovation Solution
An optical connector design with specific contact and bonding portions, along with a refractive-index matching adhesive, ensures stable fixation and maintains optical properties by minimizing adhesive flow into non-designated spaces, using relief concave portions and positioning features to secure accurate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is applied to attach the optical connector to the optical transmission line, then the optical connector is securely fixed, but the adhesive may flow into non-designated spaces causing displacement and loss of optical properties
Solution Approach 1:
The bonding portion is segmented from the contact portion by spatial separation. The bonding portion is formed in a region different from the contact portion region, creating distinct functional zones that prevent adhesive contamination of the contact interface while maintaining secure fixation.
Solution Approach 2:
A space is introduced as an intermediary element between the bonding portion and the front surface of the optical transmission line. This space accommodates the adhesive, preventing it from reaching the contact portion while still enabling reliable bonding through the intermediary region.
2Volume of moving object
If the bonding portion is placed close to the contact portion for structural compactness, then the device size is reduced, but adhesive flow may contaminate the contact area causing displacement
Solution Approach 1:
The bonding portion and contact portion are segmented into distinct spatial regions. The bonding portion is formed in a region different from the contact portion region, creating functional separation that prevents adhesive contamination while maintaining compact overall structure.
Solution Approach 2:
The bonding function is extracted and placed in a separate region from the contact function. This extraction allows the bonding portion to be positioned away from the contact portion, eliminating the risk of adhesive contamination while preserving structural compactness.
3Loss of energy
If adhesive is used to fill spaces for refractive index matching, then optical coupling efficiency is improved, but adhesive may flow into contact areas causing displacement
Solution Approach 1:
The optical path is segmented into regions: the space between the front surface and bonding portion is designated for adhesive filling to achieve refractive index matching, while the contact portion region is protected from adhesive contamination through spatial separation.
Solution Approach 2:
Different regions have different qualities: the space near the front surface is designed to contain adhesive for optical property optimization, while the contact portion region maintains adhesive-free quality to ensure positioning stability and prevent displacement.
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 solution reduces displacement and maintains desired optical properties by ensuring precise positioning and reducing coupling losses through refractive index matching and adhesive control, enhancing optical coupling efficiency and durability.
Implementation Method 1
an agent attaching the optical connector to the optical transmission line is provided in the space
Implementation Method 2
refractive-index matching adhesive, ensures stable fixation and maintains optical properties by minimizing adhesive flow
Data Source
AI summary
An optical connector (20) according to the present disclosure is an optical connector (20) attached to an optical transmission line (10), which includes a base body (11) and an optical waveguide (12) stacked on the base body (11). The optical connector (20) includes a first base (21) placed on the optical transmission line (10), a contact portion (213) included in the first base (21) and being in contact with a placement surface of the optical transmission line (10), and a bonding portion (214) formed in a region of the first base (21) in which the contact portion (213) is not formed and being spaced apart from a surface of the optical transmission line (10). A space (S2) is formed between the bonding portion (214) and the surface of the optical transmission line (10), and an agent (A) attaching the optical connector (20) to the optical transmission line (10) is provided in the space (S2).