公开(公告)号：US20160291443A1

公开(公告)日：2016-10-06

申请号：US15177140

申请日：2016-06-08

Applicant: Lumentum Operations LLC

Inventor： James J. MOREHEAD ,  Loren A. EYRES ,  Bertram C. JOHNSON ,  Martin H. MUENDEL ,  Derek A. TUCKER

IPC: G02F1/37 ,  G02F1/35 ,  H01S3/00

CPC classification number: G02F1/3501 ,  G02F1/353 ,  G02F1/3551 ,  G02F1/37 ,  G02F2001/3503 ,  G02F2001/3505 ,  G02F2001/3507 ,  G02F2001/3509 ,  G02F2001/354 ,  G02F2201/20 ,  G02F2203/055 ,  H01S3/0092

Abstract: A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.

Abstract translation: 用于由激光源提供的光束的级联光谐波产生的级联谐波发生器可以包括二次谐波发生器，用于基于与光束相关联的剩余光束产生二次谐波光束。 级联谐波发生器可以包括基于二次谐波光束和光束产生三次谐波光束的三次谐波发生器。 三次谐波发生器可以位于从二次谐波发生器上游的光路中。 与光路相关联的谐波发生器延迟时间可以近似等于或可以是激光源往返时间的近似整数倍。

公开(公告)号：US20190221991A1

公开(公告)日：2019-07-18

申请号：US16161902

申请日：2018-10-16

Applicant: Lumentum Operations LLC

Inventor： Tobyn VANVEGHTEN ,  Joseph J. ALONIS ,  James J. MOREHEAD ,  Loren A. EYRES

IPC: H01S3/11 ,  H01S3/094 ,  H01L25/16 ,  H01L27/146 ,  G01J11/00

CPC classification number: H01S3/1127 ,  G01J11/00 ,  H01L25/167 ,  H01L27/14643 ,  H01S3/094076

Abstract: A device may determine at least one metric related to a plurality of laser pulses associated with a Q-switched laser. The device may determine a statistical metric for the at least one metric related to the plurality of laser pulses. The device may determine that the statistical metric satisfies a threshold level of deviation of the at least one metric related to the plurality of laser pulses from a baseline value for the at least one metric. The device may indicate laser degradation of the Q-switched laser based on determining that the statistical metric satisfies the threshold.

公开(公告)号：US20170219912A1

公开(公告)日：2017-08-03

申请号：US15429804

申请日：2017-02-10

Applicant: Lumentum Operations LLC

Inventor： James J. MOREHEAD ,  Loren A. EYRES ,  Bertram C. JOHNSON ,  Martin H. MUENDEL ,  Derek A. TUCKER

IPC: G02F1/35 ,  H01S3/00 ,  G02F1/37

CPC classification number: G02F1/3501 ,  G02F1/353 ,  G02F1/3551 ,  G02F1/37 ,  G02F2001/3503 ,  G02F2001/3505 ,  G02F2001/3507 ,  G02F2001/3509 ,  G02F2001/354 ,  G02F2201/20 ,  G02F2203/055 ,  H01S3/0092

Abstract: A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.