Z-Pluggable Optical Module Strain Relief Device
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Solution Overview
Problem
Existing parallel optical communications systems face challenges with space consumption and difficulty in installing and swapping modules due to non-Z-pluggable designs, limiting bandwidth and increasing complexity in high-density optical communications systems.
Innovation Solution
A Z-pluggable optical communications module with a strain relief device using a bundle of parallel metal wires and a clamping mechanism to provide stiffness and flexibility, allowing for easy installation and removal, and a spring-loaded actuator mechanism for motion in the Y-direction, enabling increased edge-mounting density and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional non-Z-pluggable optical modules are used, then structural stability is maintained, but ease of operation deteriorates due to difficulty in installation and swapping
Solution Approach 1:
The optical module is divided into separable components: a Z-pluggable module body and a strain relief device. The strain relief device acts as an independent component that can be attached and detached, enabling easy installation and swapping while maintaining structural integrity during operation.
Solution Approach 2:
The strain relief device incorporates a dynamic spring mechanism that adapts to different installation states. The spring provides flexible strain relief during insertion/removal operations while maintaining stable tension during normal operation, enabling easy module swapping without compromising structural stability.
2Productivity
If edge-mounting density is increased, then bandwidth is improved, but device complexity increases due to space constraints
Solution Approach 1:
The strain relief device extends in the Z-direction (depth dimension) rather than requiring additional X-Y plane space. This vertical dimension utilization allows high edge-mounting density on the front panel while providing sufficient strain relief functionality, enabling increased bandwidth without proportionally increasing system complexity.
Solution Approach 2:
The strain relief device uses a flexible spring mechanism with thin profile that provides adequate strain relief within limited space. The flexible design allows the device to accommodate cable movements and installation variations without requiring large dimensional envelopes, supporting high-density mounting configurations.
3Ease of operation
If strain relief is provided during insertion and removal, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The strain relief function is extracted as a separate, dedicated device rather than being integrated into the module housing or cable assembly. This independent strain relief device can be optimally designed for its specific function and easily attached/detached, providing effective strain relief during insertion/removal without adding complex integrated mechanisms.
Solution Approach 2:
The spring constant of the strain relief device is specifically optimized to provide adequate strain relief force during insertion and removal operations. By tuning the spring parameter, the device achieves effective strain relief with simple geometry, avoiding the need for complex mechanisms while improving ease of operation.
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 Z-pluggable design allows for higher edge-mounting density and easier module installation and replacement, achieving increased bandwidth while maintaining a compact form factor and robust EMI shielding.
Implementation Method 1
The clamped bundle of metal wires forms a spring having a spring constant that provides it with a desired stiffness and a desired flexibility
Implementation Method 2
The clamped bundle of metal wires forms a spring having a spring constant that provides it with a desired stiffness and a desired flexibility
Implementation Method 3
a clamping mechanism for clamping first and second ends of the metal wires to an optical fiber cable
Data Source
AI summary
A strain relief device and method are provided for use with an optical fiber cable of an optical communications system. The strain relief device comprises a plurality of metal wires, or rods, grouped into a bundle of parallel metal wires and a clamping mechanism for clamping first and second ends of the metal wires to an optical fiber cable. The clamped bundle of metal wires forms a spring having a spring constant that provides it with a desired stiffness and a desired flexibility.