公开(公告)号：US11152756B2

公开(公告)日：2021-10-19

申请号：US16518714

申请日：2019-07-22

申请人： University of Maryland, College Park ,  IonQ, Inc.

发明人： Christopher Monroe ,  Kai Hudek ,  Jonathan Mizrahi ,  Marko Cetina ,  Sarah Margaret Kreikemeier ,  Michael Goldman ,  Kristin Beck

IPC分类号： H01S3/08 ,  H01S3/086 ,  H01S3/02 ,  H01S3/067 ,  G06N10/00 ,  G02B7/182 ,  H01S3/094

摘要： The disclosure describes aspects of laser cavity repetition rate tuning and high-bandwidth stabilization of pulsed lasers. In one aspect, an output optical coupler is described that includes a cavity output coupler mirror, a piezoelectric actuator coupled to the cavity output coupler mirror, a locking assembly within which the cavity output coupler mirror and the piezoelectric actuator are positioned, and one or more components coupled to the locking assembly. The components are configured to provide multiple positional degrees of freedom for tuning a frequency comb spectrum of the pulsed laser (e.g., tuning a repetition rate) by adjusting at least one position of the locking assembly with the cavity output coupler mirror. A method of adjusting an output optical coupler in a pulsed laser is also described. These techniques may be used in different applications, including quantum information processing.

公开(公告)号：US11573477B2

公开(公告)日：2023-02-07

申请号：US17150909

申请日：2021-01-15

申请人： University of Maryland, College Park

发明人： Kristin Beck ,  Marko Cetina ,  Michael Goldman

IPC分类号： G02F1/33 ,  G02F1/11 ,  H04J14/02

摘要： Aspects of the present disclosure describe techniques for controlling coherent crosstalk errors that occur in multi-channel acousto-optic modulators (AOMs) by applying cancellation tones to reduce or eliminate the crosstalk errors. For example, a method and systems are described that include applying a first radio frequency (RF) tone to generate a first acoustic wave in a first channel of the multi-channel AOM, wherein a portion of the first acoustic wave interacts with a second channel to cause a crosstalk effect, and applying a second RF tone to generate a second acoustic wave in the second channel, wherein the second acoustic wave reduces or eliminates the crosstalk effect caused by the portion of the first acoustic wave.