Resonant Electro-Optic Modulator Thermal Stabilization
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Solution Overview
Problem
Existing thermally stabilized resonant electro-optic modulators require additional complex electrical components and high power for decision-making processes, making them prone to malfunctions and complicating data transmission speed, especially in determining bit representation from light sensor outputs.
Innovation Solution
A thermally stabilized resonant electro-optic modulator that separately measures light intensities at different voltages over time, allowing direct monitoring and control of temperature adjustments without additional decision-making components, enabling accurate operation and flexible setting of desired conditions like insertion loss and extinction ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional electrical components are added for decision-making processes in existing thermally stabilized resonant electro-optic modulators, then the modulator can determine bit representation from light sensor outputs, but the device complexity increases and the modulator becomes more prone to malfunctions
Solution Approach 1:
The patent extracts and eliminates the complex decision-making electrical components from the modulator system. Instead of using additional electrical components to determine bit representation, the invention uses the inherent optical properties of the resonant modulator - specifically, the transmitted light intensity directly represents the modulated signal, eliminating the need for separate decision-making electronics.
Solution Approach 2:
The patent replaces the electrical decision-making system with an optical measurement approach. By monitoring the optical transmission characteristics of the resonant modulator directly, the system determines bit representation through optical means rather than electrical processing, thereby simplifying the overall device architecture.
2Productivity
If high-speed computation components are added for making decisions at high data transmission speeds, then the modulator can achieve high data transmission speed, but the device complexity increases and power consumption increases
Solution Approach 1:
The patent removes high-speed computation components from the system by leveraging the natural resonant response of the optical modulator. The resonant frequency tuning allows direct optical detection of modulated signals without requiring high-speed electronic computation, thereby achieving high data transmission speeds with simplified hardware.
Solution Approach 2:
The invention substitutes electrical computation with optical resonance detection. By tuning the resonant frequency of the optical modulator to match the data transmission rate, the system achieves high-speed operation through optical physics rather than electronic computation, reducing both complexity and power consumption.
3Measurement precision
If additional electrical components are added for decision-making processes, then the modulator can determine bit representation, but the power consumption increases
Solution Approach 1:
The patent extracts and eliminates power-hungry decision-making electrical components from the system. By using the inherent optical transmission characteristics of the resonant modulator to directly represent modulated bits, the invention achieves bit determination without additional power consumption from electronic decision-making circuits.
4Measurement precision
If additional electrical components are added for decision-making processes, then the modulator can determine bit representation, but the modulator becomes more prone to malfunctions
Solution Approach 1:
The patent removes additional electrical components that introduce potential failure points. By relying on the robust optical resonance characteristics of the modulator itself for bit determination, the system achieves reliable operation without the fragility introduced by additional electronic decision-making 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
This approach simplifies the control of thermal stabilization, improves accuracy in bit determination, and allows the modulator to operate effectively even with uneven voltage distributions, reducing the need for high-speed electronics and enhancing signal integrity.
Implementation Method 1
resonant electro-optic modulator unit (2) comprising a first ring-shaped wave guide (3) and a second longitudinal wave guide (4) adjacent to the first wave guide (3)... light with a wavelength transmitted through the second wave guide (4) is differently attenuated by resonance in the first wave guide (3) by application of either the first or the second voltage
Implementation Method 2
a thermal stabilisation unit (7) for adjusting the temperature of the first wave guide (3)... the output for a given wavelength depends relatively heavily on their operating temperature
Data Source
Figure 1
AI summary
Thermally stabilised resonant electro-optic modulator (1) comprising a silicon ring resonator (3) and two straight waveguides (4, 9) coupled to it, wherein the modulator (1) further comprises a voltage unit (5) arranged to receive a data stream and to apply first and a second voltages, respectively corresponding to logic zeros and logic ones in the data stream, to the ring resonator (3), the modulator further including a light sensor (6) arranged to separately sample in time first and second intensities of light transmitted through the waveguide (4) upon application of the first and second voltages, as well as to provide the separately sampled intensities to a temperature control unit (8), this unit being arranged to control a thermal stabilisation unit (7) on the basis of the sampled intensities.