公开(公告)号：US10656016B2

公开(公告)日：2020-05-19

申请号：US16148794

申请日：2018-10-01

申请人： Massachusetts Institute of Technology

发明人： David Burghoff ,  Yang Yang ,  Qing Hu

IPC分类号： G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01J9/04 ,  G01J3/10

摘要： According to one aspect, a multi-heterodyne system is disclosed, which comprises a first laser source for generating multi-mode radiation having a frequency spectrum characterized by a first plurality of phase coherent frequencies, and a second laser source for generating multi-mode radiation having a frequency spectrum characterized by a second plurality of phase coherent frequencies. The system further comprises at least one detector for detecting a combination of the multi-mode radiation generated by the first and second laser sources so as to provide a multi-heterodyne signal having a frequency spectrum characterized by a plurality of beat frequencies, each beat frequency corresponding to a pairwise difference in the first and second plurality of phase coherent frequencies. The system further comprises an analyzer for receiving said multi-heterodyne signal and configured to employ a predictive model of the multi-heterodyne signal to provide estimates of any of phase error and timing error associated with the beat frequencies.

公开(公告)号：US20170138791A1

公开(公告)日：2017-05-18

申请号：US15259687

申请日：2016-09-08

申请人： Massachusetts Institute of Technology

发明人： David Burghoff ,  Yang Yang ,  Qing Hu

IPC分类号： G01J3/28 ,  G01J3/10

CPC分类号： G01J3/28 ,  G01J3/10 ,  G01J3/108 ,  G01J3/2803 ,  G01J3/42 ,  G01J3/4531 ,  G01J9/04 ,  G01J2003/102 ,  G01J2003/284

摘要： According to one aspect, a multi-heterodyne system is disclosed, which comprises a first laser source for generating multi-mode radiation having a frequency spectrum characterized by a first plurality of phase coherent frequencies, and a second laser source for generating multi-mode radiation having a frequency spectrum characterized by a second plurality of phase coherent frequencies. The system further comprises at least one detector for detecting a combination of the multi-mode radiation generated by the first and second laser sources so as to provide a multi-heterodyne signal having a frequency spectrum characterized by a plurality of beat frequencies, each beat frequency corresponding to a pairwise difference in the first and second plurality of phase coherent frequencies. The system further comprises an analyzer for receiving said multi-heterodyne signal and configured to employ a predictive model of the multi-heterodyne signal to provide estimates of any of phase error and timing error associated with the beat frequencies.

公开(公告)号：US10126170B2

公开(公告)日：2018-11-13

申请号：US15259687

申请日：2016-09-08

申请人： Massachusetts Institute of Technology

发明人： David Burghoff ,  Yang Yang ,  Qing Hu

IPC分类号： G01J3/28 ,  G01J3/10

摘要： According to one aspect, a multi-heterodyne system is disclosed, which comprises a first laser source for generating multi-mode radiation having a frequency spectrum characterized by a first plurality of phase coherent frequencies, and a second laser source for generating multi-mode radiation having a frequency spectrum characterized by a second plurality of phase coherent frequencies. The system further comprises at least one detector for detecting a combination of the multi-mode radiation generated by the first and second laser sources so as to provide a multi-heterodyne signal having a frequency spectrum characterized by a plurality of beat frequencies, each beat frequency corresponding to a pairwise difference in the first and second plurality of phase coherent frequencies. The system further comprises an analyzer for receiving said multi-heterodyne signal and configured to employ a predictive model of the multi-heterodyne signal to provide estimates of any of phase error and timing error associated with the beat frequencies.

公开(公告)号：US20190041267A1

公开(公告)日：2019-02-07

申请号：US16148794

申请日：2018-10-01

申请人： Massachusetts Institute of Technology

发明人： David Burghoff ,  Yang Yang ,  Qing Hu

IPC分类号： G01J3/28 ,  G01J3/453 ,  G01J3/10 ,  G01J9/04 ,  G01J3/42

摘要： According to one aspect, a multi-heterodyne system is disclosed, which comprises a first laser source for generating multi-mode radiation having a frequency spectrum characterized by a first plurality of phase coherent frequencies, and a second laser source for generating multi-mode radiation having a frequency spectrum characterized by a second plurality of phase coherent frequencies. The system further comprises at least one detector for detecting a combination of the multi-mode radiation generated by the first and second laser sources so as to provide a multi-heterodyne signal having a frequency spectrum characterized by a plurality of beat frequencies, each beat frequency corresponding to a pairwise difference in the first and second plurality of phase coherent frequencies. The system further comprises an analyzer for receiving said multi-heterodyne signal and configured to employ a predictive model of the multi-heterodyne signal to provide estimates of any of phase error and timing error associated with the beat frequencies.