研究目的
Investigating the effects of temperature control on the transmission spectrum of a solid Fabry–Pérot etalon to reduce wavelength drift caused by temperature variations.
研究成果
The designed temperature maintaining system for a solid Fabry–Pérot etalon effectively reduces wavelength drift to 0.5 pm/℃, demonstrating the importance of temperature control in applications requiring precise optical measurements.
研究不足
The study focuses on a specific type of etalon and may not be directly applicable to all Fabry–Pérot etalons. The temperature control system's effectiveness is demonstrated under controlled conditions, and its performance in more variable environments is not explored.
1：Experimental Design and Method Selection:
Designed a temperature insulation structure and employed a PID controlling algorithm to manage the temperature of a solid Fabry–Pérot etalon.
2：Sample Selection and Data Sources:
Used a solid Fabry–Pérot etalon with FSR = 100 GHz ±
3：3 GHz. List of Experimental Equipment and Materials:
Included a semiconductor TEC (Thermo Electric Cooler), a temperature sensor, a wavelength tunable laser (Agilent 81680A), and an optical receiver module (Agilent 81536B).
4：Experimental Procedures and Operational Workflow:
The TEC heated and cooled the etalon, while the temperature sensor measured the temperature, which was then processed by a PID algorithm in an MCU to control the TEC.
5：Data Analysis Methods:
Compared the transmission spectrum of the etalon with and without temperature control at different environmental temperatures.
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