Dual Optical Frequency Comb Coupling for Stable Synchronization
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Solution Overview
Problem
Existing dual optical frequency comb light-emitting devices require complex and expensive synchronizer circuits to stabilize the operation of two optical-frequency-comb laser sources, which increases costs and complexity.
Innovation Solution
A dual optical frequency comb light-emitting device is designed with a first optical-frequency-comb laser source and a second optical-frequency-comb laser source, where the first portion of the first optical-frequency-comb laser light is used as excitation light for the second laser resonator, thereby synchronizing and stabilizing their operation without the need for a synchronizer circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex synchronizer circuits are used to stabilize the operation of two optical-frequency-comb laser sources, then the stability and synchronization of the laser sources is improved, but the device complexity and cost increase
Solution Approach 1:
The first optical-frequency-comb laser source serves itself by providing excitation light to the second laser source through the optical coupler. This self-service mechanism eliminates the need for external synchronizer circuits, as the system uses its own output to control and synchronize the second source, thereby maintaining stability while reducing complexity and cost.
Solution Approach 2:
The patent combines the function of excitation light generation and synchronization control into a single integrated system. The first laser source simultaneously provides both the optical output and the excitation light for the second source, merging what would traditionally require separate synchronizer circuits into a unified configuration, thus reducing device complexity while maintaining reliability.
2Manufacturing precision
If complex synchronizer circuits are used to synchronize two optical-frequency-comb laser sources, then the synchronization precision is improved, but the manufacturing cost increases
Solution Approach 1:
The system achieves synchronization precision without expensive synchronizer circuits by having the first laser source provide excitation light to the second source through the optical coupler. This self-service approach uses the system's own optical output to control synchronization, eliminating the need for costly external synchronization equipment while maintaining precise operational coordination.
Solution Approach 2:
The optical coupler acts as an intermediary that transfers excitation light from the first laser source to the second source. This intermediary component enables precise synchronization between the two sources without requiring complex synchronizer circuits, thereby achieving high synchronization precision while keeping manufacturing costs low through the use of a simple optical coupling mechanism.
3Device complexity
If simple inexpensive devices are used without optical coupling, then the device complexity is reduced, but the synchronization and stabilization of the laser sources cannot be achieved
Solution Approach 1:
The optical coupler serves as a simple yet effective intermediary that connects the first and second laser sources. This intermediary component enables the transfer of excitation light from the first source to the second, achieving synchronization and stabilization without adding significant device complexity. The optical coupler is a straightforward optical component that facilitates reliable operation while maintaining system simplicity.
Solution Approach 2:
The system achieves stabilization and synchronization using a simple configuration where the first laser source provides excitation light to the second source through the optical coupler. This self-service mechanism eliminates the need for complex external control systems, allowing the device to maintain reliability and stability while keeping the overall structure simple and inexpensive.
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 allows for a simple and inexpensive realization of a dual optical frequency comb light-emitting device, eliminating the need for complex synchronizer circuits and reducing costs while maintaining the stability of the optical frequency combs.
Implementation Method 1
an optical coupler that causes a first portion of first optical-frequency-comb laser light emitted from the first laser resonator to enter the second laser resonator
Implementation Method 2
a first portion of first optical-frequency-comb laser light emitted from the first laser resonator to enter the second laser resonator
Data Source
AI summary
A dual optical frequency comb light-emitting device includes a first optical-frequency-comb laser source that includes a first laser resonator having a first optical path length, a second optical-frequency-comb laser source that includes a second laser resonator having a second optical path length different from the first optical path length, and an optical coupler that causes a first portion of first optical-frequency-comb laser light emitted from the first laser resonator to enter the second laser resonator. The first optical-frequency-comb laser source outputs a second portion of the first optical-frequency-comb laser light to an outside. The second optical-frequency-comb laser source outputs second optical-frequency-comb laser light emitted from the second laser resonator to the outside.