公开(公告)号：US20160365698A1

公开(公告)日：2016-12-15

申请号：US15178756

申请日：2016-06-10

Applicant: Thales Holdings UK Plc

Inventor： Andrew BORTHWICK ,  Stephen LEE

IPC: H01S3/081 ,  H01S3/109 ,  H01S3/08

CPC classification number: H01S3/0811 ,  H01S3/005 ,  H01S3/08054 ,  H01S3/081 ,  H01S3/0815 ,  H01S3/1095

Abstract: An optical apparatus comprises an optical resonator defining an optical resonator path for an optical resonator beam and an optical beam expander optically coupled to the optical resonator, the optical beam expander defining an optical beam expander path for an optical beam expander beam. The optical resonator path and the optical beam expander path may be configured such that the optical resonator beam and the optical beam expander beam at least partially intersect. Such an optical apparatus may be configured for use as a laser target designator or a laser range finder.

Abstract translation: 光学装置包括限定用于光学谐振器光束的光学谐振器路径的光学谐振器和与光学谐振器光学耦合的光束扩展器，光束扩展器限定用于光束扩展器光束的光束扩展器路径。 光谐振器路径和光束扩展器路径可以被配置为使得光谐振器光束和光束扩展器光束至少部分地相交。 这种光学装置可以被配置为用作激光目标指示器或激光测距仪。

公开(公告)号：US20160359293A1

公开(公告)日：2016-12-08

申请号：US15173055

申请日：2016-06-03

Applicant: Thales Holdings UK Plc

Inventor： Stephen LEE ,  William ALEXANDER ,  Trevor COOK

IPC: H01S3/113 ,  G01S17/08

CPC classification number: H01S3/113 ,  G01S17/08 ,  H01S3/0941 ,  H01S3/1022 ,  H01S3/1061 ,  H01S3/1618 ,  H01S3/1643

Abstract: A method for use in controlling emission of an optical pulse from a laser comprises pumping a gain medium of a laser at a rate which is limited so that free-running passive Q-switching of the laser is prevented regardless of a duration of pumping of the gain medium. The method further comprises triggering a saturable absorber of the laser so as to reduce a laser cavity loss below a laser cavity gain and cause an optical pulse to be emitted from the laser at a desired emission time. Such a method may provide for the reduction of pulse-to-pulse timing jitter, the control of energy of the emitted optical pulse and/or for the suppression of the emission of multiple optical pulses that may otherwise occur for free-running passive Q-switching of the laser for sufficient gain medium pumping rates.

Abstract translation: 用于控制来自激光器的光脉冲的发射的方法包括以限制的速率泵浦激光器的增益介质，使得防止激光的自由运行的无源Q切换，而不管泵浦的持续时间如何 增益介质。 该方法还包括触发激光器的可饱和吸收器，以便减少低于激光腔增益的激光腔损耗，并使得在期望的发射时间从激光器发射光脉冲。 这种方法可以提供脉冲到脉冲定时抖动的减少，发射的光脉冲的能量的控制和/或用于抑制可能出现的自由运行的无源Q-脉冲的多个光脉冲的发射。 切换激光器以获得足够的增益介质泵送速率。