Optical Module Waveguide Interposer Energy Loss Reduction

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Solution Overview

Problem

Optical modules experience signal transmission quality degradation due to energy loss during multiple transmission interface transfers and require a large turning radius and width for light deflection, which increases space and hardware requirements.

Innovation Solution

The optical module employs a waveguide interposer with input and output terminals and a splitting structure to guide laser light directly to external fiber connectors, reducing the number of transmission interface transfers and minimizing deflection angles, thereby reducing energy loss and improving signal quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If light undergoes multiple transmission interface transfers in conventional optical modules, then light can be routed through optical interposers, but energy is inevitably lost and signal transmission quality is degraded

Engineering Contradiction:
Improveenergy lossVSAvoidsignal transmission quality
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent merges the optical interposer function directly into the optical module housing structure, eliminating separate transmission interfaces between components. The optical interposer is integrated such that light travels through a continuous path without multiple medium transitions, thereby reducing energy loss and improving signal transmission quality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces an optimized optical interposer design that acts as an efficient mediator between light sources and fiber connectors. The interposer uses optimized waveguide structures and reduced interface transitions to minimize energy loss while maintaining effective light routing functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of energy

If optical interposer has sufficient turning radius and relatively large width to prevent excessive energy loss during deflection, then light can maintain energy, but the width of the optical interposer and space requirements increase

Engineering Contradiction:
Improveenergy loss during deflectionVSAvoidwidth of optical interposer
Core Design Contradiction:
Loss of energyVSArea of stationary object

Solution Approach 1:

The patent employs optimized curved waveguide paths with carefully designed turning radii that balance energy conservation requirements with compact geometry. The waveguides use smooth curved transitions rather than sharp angles, minimizing reflection losses while fitting within a reduced interposer width through optimized curvature profiles.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent optimizes the turning radius parameter of the waveguides to achieve the best compromise between energy loss and compact size. By carefully selecting and adjusting the curvature radius parameter, the design minimizes deflection losses while maintaining a compact interposer width that reduces overall module footprint.

Inventive Principle:
Principle #35Parameter changes

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 configuration reduces energy loss and enhances signal transmission quality by minimizing the number of transmission interface transfers and optimizing the waveguide interposer's design to decrease its width and deflection angles, leading to improved performance and reduced hardware requirements.

Implementation Method 1

The at least one waveguide channel is coupled to the at least one input terminal, and configured to guide the laser light

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

a lens configured to adjust a travel direction of the laser light

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS11567274B2Optical module
Publication Date: 2023.01.31 MOLEX INC
  • US11567274B2 patent drawing
  • US11567274B2 patent drawing
  • US11567274B2 patent drawing

AI summary

An optical module includes a waveguide interposer and at least one light source unit. The waveguide interposer includes at least one input terminal, at least one waveguide channel, and at least one output terminal. The at least one input terminal is configured to receive laser light, and the at least one waveguide channel is coupled to the at least one input terminal and is configured to guide the laser light. Each light source unit is configured to output the laser light to a corresponding input terminal of the at least one input terminal.