Deep space gravitational wave detection device based on relay femtosecond pulse

A femtosecond pulse and detection device technology, applied in the field of gravitational wave detection, can solve the problems of linear increase of measurement error, insufficient to meet the range measurement requirements of deep space gravitational wave detection missions, and inability to meet the accuracy requirements of space gravitational wave detection missions, etc. , to achieve the effect of ensuring detection sensitivity, avoiding real-time communication and high-precision clock synchronization problems

Active Publication Date: 2018-02-27
HARBIN INST OF TECH
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Problems solved by technology

However, in the ultra-long-distance measurement, this method is not enough to meet the range measurement requirements of the deep space gravitational wave detection mission, and with the increase of the measured distance, the measurement error increases linearly, which cannot meet the space gravitational wave detection mission. Accuracy requirements
In addition, in the ultra-long-distance measurement, due to the long round-trip time of the measurement light, the dynamic characteristics of the measurement system are greatly affected, so that this method can only measure static targets and cannot realize displacement detection.
[0009] To sum up, there is currently a lack of a femtosecond laser-based deep-space gravitational wave detection device in the field of gravitational wave detection

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  • Deep space gravitational wave detection device based on relay femtosecond pulse
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  • Deep space gravitational wave detection device based on relay femtosecond pulse

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Embodiment Construction

[0027] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] The deep-space gravitational wave detection device based on the relay femtosecond pulse of this embodiment, figure 1 As a schematic diagram of its principle, figure 2 It is a schematic diagram of the device structure. The device includes: measuring terminal 1, No. 1 femtosecond phase-locked repeater 5, No. 2 femtosecond phase-locked repeater 6, No. 3 femtosecond phase-locked repeater 7, No. Second phase-locked repeater 2, No. 5 femtosecond phase-locked repeater 3 and No. 6 femtosecond phase-locked repeater 4 constitute a pulse time-domain locked relay measurement structure; the output light of the measurement terminal 1 Point to the input terminals of No. 1 femtosecond phase-locked repeater 5 and No. 4 femtosecond phase-locked repeater 2 respectively, and the output light of No. 1 femtosecond phase-locked repeater 5 points to No. 2 femtosecond...

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Abstract

A deep space gravitational wave detection apparatus based on repeating type femtosecond pulses is disclosed and comprise a measuring end, a number one femtosecond phase lock repeater, a number two femtosecond phase lock repeater, a number three femtosecond phase lock repeater, a number four femtosecond phase lock repeater, a number five femtosecond phase lock repeater and a number six femtosecond phase lock repeater. The deep space gravitational wave detection apparatus can be used for conducting equal arm length differential detection on gravitational wave signals, detection sensitivity can reach a sub-nanometer magnitude, each of two measuring arms adopts a pulse time domain locking type repeating measurement structure, the luminous power of measuring light is amplified by cascading three femtosecond phase lock repeaters, deep space gravitational wave detection on the scale of the outer solar system, the measuring end is independent of the six femtosecond phase lock repeaters, and problems of real time communication between satellites that are far apart and high-precision clock synchronization can be addressed.

Description

technical field [0001] The invention belongs to the field of gravitational wave detection, and mainly relates to a deep space gravitational wave detection device based on femtosecond laser. Background technique [0002] For many years, the detection of gravitational waves has been a research hotspot all over the world. The detection of gravitational waves is a direct verification of the predictions of general relativity and a direct test of its core ideas. The origin and evolution of the universe is of great significance. The detection of gravitational waves directly contributed to the birth of gravitational wave astronomy, making it possible to observe the universe with gravitational waves instead of traditional electromagnetic wave means, which can provide us with a large amount of information that could not be obtained in the past, and provide a new way for people to further deepen their understanding of the universe. way. [0003] Long-distance precision displacement d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V7/00
CPCG01V7/00
Inventor 胡鹏程谭久彬
Owner HARBIN INST OF TECH
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