公开(公告)号：US20170351293A1

公开(公告)日：2017-12-07

申请号：US15612043

申请日：2017-06-02

申请人： Jacques Johannes Carolan ,  Mihika PRABHU ,  Scott SKIRLO ,  Yichen SHEN ,  Marin SOLJACIC ,  Nicholas Christopher HARRIS ,  Dirk Robert ENGLUND

发明人： Jacques Johannes Carolan ,  Mihika PRABHU ,  Scott SKIRLO ,  Yichen SHEN ,  Marin SOLJACIC ,  Nicholas Christopher HARRIS ,  Dirk Robert ENGLUND

IPC分类号： G06E3/00 ,  G02F1/365 ,  G02F1/225 ,  G06N3/067 ,  G02F3/02 ,  G02F1/35 ,  G06N3/08 ,  G02F1/21

CPC分类号： G06E3/005 ,  G02F1/225 ,  G02F1/3526 ,  G02F1/365 ,  G02F3/024 ,  G02F2001/212 ,  G02F2202/32 ,  G02F2203/15 ,  G06E3/006 ,  G06E3/008 ,  G06N3/0675 ,  G06N3/08

摘要： An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.

公开(公告)号：US20200150511A1

公开(公告)日：2020-05-14

申请号：US16680908

申请日：2019-11-12

申请人： Jacques Johannes Carolan ,  Uttara Chakraborty ,  Nicholas C. HARRIS ,  Mihir PANT ,  Dirk Robert ENGLUND

发明人： Jacques Johannes Carolan ,  Uttara Chakraborty ,  Nicholas C. HARRIS ,  Mihir PANT ,  Dirk Robert ENGLUND

IPC分类号： G02F1/35 ,  H01S3/083 ,  H01S3/094 ,  H01S3/08 ,  H01S3/13 ,  H01S3/067 ,  H01S3/23 ,  G02F1/355 ,  G02F1/365

摘要： Typically, quantum systems are very sensitive to environmental fluctuations, and diagnosing errors via measurements causes unavoidable perturbations. Here, an in situ frequency-locking technique monitors and corrects frequency variations in single-photon sources based on resonators. By using the classical laser fields used for photon generation as probes to diagnose variations in the resonator frequency, the system applies feedback control to correct photon frequency errors in parallel to the optical quantum computation without disturbing the physical qubit. Our technique can be implemented on a silicon photonic device and with sub 1 pm frequency stabilization in the presence of applied environmental noise, corresponding to a fractional frequency drift of