Chinese Journal of Quantum Electronics, Volume. 41, Issue 4, 649(2024)
Background noise analysis of laser interferometer for test of TDI technology on ground
For space gravitational wave detection, as the lengths of laser interferometer arms are not matched, the laser frequency noise cannot be eliminated in common mode, leading to the weak interfering signals being submerged in large residual laser frequency noise. By time-shifting and linearly combining independent interfering signals, laser frequency noise can be greatly eliminated as laser interferometry with virtual equal interferometer arm lengths. Such a technique is called time delay interferometry (TDI). In order to experimentally validate that TDI technique can reduce the influence of laser frequency noise on gravitational wave detection to 3 × 10-7 Hz/
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Lingyun ZUO, Haosen SHI, Yuan YAO, Yanyi JIANG, Longsheng MA. Background noise analysis of laser interferometer for test of TDI technology on ground[J]. Chinese Journal of Quantum Electronics, 2024, 41(4): 649
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Received: May. 20, 2022
Accepted: --
Published Online: Jan. 8, 2025
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