Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat
Cryogenic ultrastable laser cavities push laser stability to new levels due to their lower thermal noise limitation. Vibrational noise is one of the major obstacles to achieve a thermal-noise-limited cryogenic ultrastable laser system. Here, we carefully analyze the vibrational noise contribution to...
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doaj-35f5a6c88dba4a2d840c923622f2ad582021-07-23T14:05:21ZengMDPI AGSensors1424-82202021-07-01214696469610.3390/s21144696Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube CryostatYanxia Ye0Leilei He1Yunlong Sun2Fenglei Zhang3Zhiyuan Wang4Zehuang Lu5Jie Zhang6MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, ChinaCryogenic ultrastable laser cavities push laser stability to new levels due to their lower thermal noise limitation. Vibrational noise is one of the major obstacles to achieve a thermal-noise-limited cryogenic ultrastable laser system. Here, we carefully analyze the vibrational noise contribution to the laser frequency. We measure the vibrational noise from the top of the pulse-tube cryocooler down to the experiment space. Major differences emerge between room and cryogenic temperature operation. We cooled a homemade 6 cm sapphire optical resonator down to 3.4 K. Locking a 1064 nm laser to the resonator, we measure a frequency stability of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.3</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>15</mn></mrow></msup></mrow></semantics></math></inline-formula>. The vibration sensitivities change at different excitation frequencies. The vibrational noise analysis of the laser system paves the way for in situ accurate evaluation of vibrational noise for cryogenic systems. This may help in cryostat design and cryogenic precision measurements.https://www.mdpi.com/1424-8220/21/14/4696optical resonatorin situ vibration measurementcryogenic temperaturevibration sensitivity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanxia Ye Leilei He Yunlong Sun Fenglei Zhang Zhiyuan Wang Zehuang Lu Jie Zhang |
spellingShingle |
Yanxia Ye Leilei He Yunlong Sun Fenglei Zhang Zhiyuan Wang Zehuang Lu Jie Zhang Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat Sensors optical resonator in situ vibration measurement cryogenic temperature vibration sensitivity |
author_facet |
Yanxia Ye Leilei He Yunlong Sun Fenglei Zhang Zhiyuan Wang Zehuang Lu Jie Zhang |
author_sort |
Yanxia Ye |
title |
Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat |
title_short |
Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat |
title_full |
Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat |
title_fullStr |
Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat |
title_full_unstemmed |
Vibration Property of a Cryogenic Optical Resonator within a Pulse-Tube Cryostat |
title_sort |
vibration property of a cryogenic optical resonator within a pulse-tube cryostat |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2021-07-01 |
description |
Cryogenic ultrastable laser cavities push laser stability to new levels due to their lower thermal noise limitation. Vibrational noise is one of the major obstacles to achieve a thermal-noise-limited cryogenic ultrastable laser system. Here, we carefully analyze the vibrational noise contribution to the laser frequency. We measure the vibrational noise from the top of the pulse-tube cryocooler down to the experiment space. Major differences emerge between room and cryogenic temperature operation. We cooled a homemade 6 cm sapphire optical resonator down to 3.4 K. Locking a 1064 nm laser to the resonator, we measure a frequency stability of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.3</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>15</mn></mrow></msup></mrow></semantics></math></inline-formula>. The vibration sensitivities change at different excitation frequencies. The vibrational noise analysis of the laser system paves the way for in situ accurate evaluation of vibrational noise for cryogenic systems. This may help in cryostat design and cryogenic precision measurements. |
topic |
optical resonator in situ vibration measurement cryogenic temperature vibration sensitivity |
url |
https://www.mdpi.com/1424-8220/21/14/4696 |
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