WDM Module for Multimode Light Source with Temperature-Resistant Optical Path
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Solution Overview
Problem
Conventional WDM modules experience unintended changes in the optical path due to temperature fluctuations and have inconvenient alignment issues with optical elements.
Innovation Solution
A WDM module for a multimode light source is designed with a base substrate, optical elements, an optical path conversion unit, a collimator, an optical path adjustment unit, and a reflection unit, which together simplify the arrangement of elements and minimize temperature-induced optical path changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional WDM module structure is used, then optical signal transmission is achieved, but unintended changes in optical path occur due to temperature fluctuations
Solution Approach 1:
The patent employs adjustable optical path elements that can dynamically adapt to temperature changes, allowing the system to maintain optimal optical path alignment despite thermal fluctuations. The optical path adjustment unit enables real-time modification of optical element positions to compensate for temperature-induced drift.
Solution Approach 2:
The invention changes physical parameters of the optical system, specifically the positions and orientations of optical elements, to compensate for temperature effects. By adjusting parameters such as the angle of incidence or focal distance of optical components, the system maintains stable optical path transmission across varying temperature conditions.
2Ease of operation
If conventional WDM module structure is used, then optical signal transmission is achieved, but alignment of optical elements is inconvenient
Solution Approach 1:
The patent divides the optical system into modular units with standardized interfaces, making each optical element independently adjustable and easier to align. The optical path adjustment unit is segmented into multiple adjustment mechanisms that can be operated separately, simplifying the alignment process for complex optical systems.
Solution Approach 2:
The invention incorporates preliminary alignment features such as pre-positioned optical elements and guide structures that facilitate easier alignment during assembly. The optical path conversion unit is designed with built-in alignment references that reduce the complexity of aligning multiple optical components.
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 proposed WDM module simplifies the arrangement of elements and is resistant to temperature-induced changes in the optical path, enhancing the stability and efficiency of wavelength division multiplexing optical communication.
Implementation Method 1
a collimator located between the optical fiber and the optical path conversion unit on the optical path, and configured to allow the light emitted from the optical fiber to travel as parallel light and allow the light with a path changed by the optical path conversion unit to be focused to the optical fiber
Implementation Method 2
an optical path conversion unit disposed between an optical fiber for outputting or receiving light and the optical element on an optical path, and configured to convert the optical path so that light emitted from one component travels to another component
Implementation Method 3
a reflection unit configured to reflect the light passing through the optical path adjustment unit to the optical element, or to reflect the light emitted from the optical element to the optical path adjustment unit
Data Source
AI summary
Disclosed is a WDM module for a multimode light source. An aspect of the present embodiment provides a WDM module for a multimode light source that simplifies the arrangement/structure of elements included therein and is resistant to temperature. The WDM module includes a base substrate, at least two optical elements configured to receive or output light of different wavelength bands, an optical path conversion unit, a collimator, an optical path adjustment unit, and a reflection unit.