Deep space gravitational wave detection device based on relay femtosecond pulse

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...

AI Technical Summary

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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