Microring Spin-Orbit Microlaser for High-Dimensional Structured Light
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Solution Overview
Problem
Existing methods for generating high-dimensional structured light rely on cumbersome, manually tunable table-top optical components that are not scalable and limited to discrete states, failing to fully utilize the dimensionality of space.
Innovation Solution
A hyperdimensional spin-orbit microlaser with two microrings coupled through control waveguides and directional couplers, enabling flexible generation and manipulation of high-dimensional superposition states with six degrees of freedom, mapped on a SU(4) Bloch hypersphere.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If table-top optical components (bulk lasers, waveplates, spatial light modulators) are used to generate high-dimensional structured light, then the generation of structured light with multiple degrees of freedom is achieved, but the device complexity increases and scalability is limited
Solution Approach 1:
The patent combines multiple optical functions (laser generation, waveplate manipulation, spatial light modulation) into a single integrated photonic chip. The microlaser array generates multiple wavelengths on-chip, eliminating the need for separate bulk lasers and optical components, thus reducing device complexity while maintaining high-dimensional structured light generation capability
Solution Approach 2:
The photonic chip is designed to generate multiple wavelengths (e.g., 1550nm, 1480nm, 1360nm) simultaneously using a single microlaser array structure. This multi-functional platform can produce various structured light states (OAM, polarization, spatial mode) without requiring separate dedicated components for each function, enabling scalable high-dimensional generation
2Quantity of substance
If manual tuning of optical components is used, then discrete structured light states can be generated, but the ease of operation decreases and productivity is limited
Solution Approach 1:
The microlaser array is designed to self-generate multiple wavelengths and structured light states through on-chip optical pumping and resonant cavity modes. The system automatically produces discrete states (OAM modes, polarization states) without requiring external manual adjustment of waveplates or spatial light modulators, improving ease of operation while maintaining state diversity
Solution Approach 2:
The patent replaces mechanical adjustment mechanisms (manual waveplate rotation, physical SLM reconfiguration) with on-chip optical pumping and electrical control of microlaser modes. This substitution eliminates manual tuning requirements while enabling generation of multiple discrete structured light states through controlled optical excitation
3Device complexity
If discrete states are emitted instead of superposition states, then the device complexity is reduced, but the loss of information increases due to underutilization of dimensional space
Solution Approach 1:
The microlaser array enables dynamic control of laser modes and wavelengths through optical pumping power adjustment. This allows the system to generate not only discrete states but also coherent superposition states by controlling the relative phases and amplitudes of multiple modes, thereby utilizing the full dimensional space without increasing device complexity
Solution Approach 2:
The patent utilizes changes in optical pumping parameters (power, wavelength, duration) to control the emission characteristics of microlasers. By adjusting these parameters, the system can transition between discrete states and superposition states, maximizing information capacity while maintaining equipment simplicity through a single integrated chip
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
Enables the generation and reconfiguration of high-fidelity, noise-resilient high-dimensional superposition states, suitable for advanced communication and computing technologies, with full control over 2(N−1) degrees of freedom, enhancing spectral efficiency and security.
Implementation Method 1
generating, via a first microring of a microlaser, a first structured light emission
Implementation Method 2
hyperdimensional spin-orbit microlaser
Data Source
AI summary
Methods and devices for generating high dimensional structured light are disclosed herein. In one aspect, a method can include: generating, via a first microring of a microlaser, a first structured light emission having a first degree of freedom and a second degree of freedom; and generating, via a second microring of a microlaser, a second structured light emission having a third degree of freedom and a fourth degree of freedom, wherein an interaction between the first structured light emission and the second structured light emission forms a fifth degree of freedom.