Aspheric Lens Collimated Beam Channel for Fiber Optic Coupling
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Solution Overview
Problem
Conventional optical communication systems face signal loss, distortion, and noise during transmission through electromagnetic waves, particularly in fiber optic applications, where maintaining signal quality and coupling efficiency between transmitter and receiver channels is challenging due to asymmetrical radiation patterns and mode differences in fiber optics.
Innovation Solution
An optical system with a collimated beam channel utilizing a first lens component with aspheric surfaces to generate a collimated beam and a second lens component with asymmetrical magnification factors for the transmit and receive channels, ensuring symmetrical channel lengths and adjustable magnification to optimize signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional optical systems use simple lens configurations, then device complexity is reduced, but signal quality deteriorates due to spherical aberrations and coupling inefficiency
Solution Approach 1:
The patent employs aspheric surfaces on lens components instead of conventional spherical surfaces. The first lens component includes an aspheric input surface and an aspheric output surface, while the second lens component includes an aspheric input surface and an aspheric output surface. These aspheric surfaces are specifically designed to reduce spherical aberrations in the optical paths, thereby improving signal quality and coupling efficiency without requiring overly complex multi-element lens systems.
2Productivity
If asymmetrical radiation patterns are used in fiber optic transmission, then transmission capability is improved, but signal distortion increases due to mode differences between transmit and receive channels
Solution Approach 1:
The patent intentionally introduces asymmetry through the fourth surface of the second lens component in the receive channel. This fourth surface has a different curvature than the third surface, creating asymmetrical magnification that compensates for the asymmetrical radiation patterns inherent in fiber optic transmission. The asymmetrical design allows the system to maintain different magnification factors for transmit and receive channels while preserving signal integrity and reducing distortion.
3Ease of operation
If channel lengths are made asymmetrical to accommodate different optical paths, then coupling efficiency improves, but signal loss increases due to path length differences
Solution Approach 1:
The patent employs parameter changes in the form of different magnification factors for the transmit and receive channels. The third and fourth surfaces of the second lens component are designed with specific curvatures that create asymmetrical magnification, allowing the system to accommodate different optical path requirements while maintaining equal physical channel lengths. This parameter adjustment optimizes coupling efficiency without creating the signal loss associated with asymmetrical channel lengths.
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 enhances signal transmission by reducing spherical aberrations, maintaining signal quality, and improving coupling efficiency between the transmitter and receiver channels, thereby minimizing signal loss and distortion in fiber optic communications.
Implementation Method 1
A first lens component is configured for receiving an optical beam and generating a collimated beam
Implementation Method 2
A second lens component is configured for directing and magnifying the collimated beam with an asymmetrical magnification factor
Data Source
AI summary
An optical system and method disclosed include a first lens component and a second lens component within the receive path or the transmit path. The first lens component includes at least two aspheric surfaces that oppose one another and generate a collimated beam channel. The second lens component generates a converging beam and magnifies the converging beam with a magnification factor that is different from a magnification factor in the other path, either the receive path or the transmit path. The receive path and the transmit path include symmetrical lengths and asymmetrical magnification factors.