公开(公告)号：US10193299B2

公开(公告)日：2019-01-29

申请号：US15473924

申请日：2017-03-30

Applicant: Datalogic IP Tech S.R.L.

Inventor： Andrea Arcangeli ,  Mihamed Hammouda

IPC: H01S3/117 ,  H01S3/067 ,  H01S3/16

Abstract: A system and method for an active Q-switched fiber laser cavity may include a pump source for emitting a laser beam at a wavelength along an optical path including an active optical medium. A modulation device may be configured to introduce tunable losses into the optical path. The tunable losses may be achieved through modulation of the transmissivity of an optical element within the optical path, the modulation of said optical element being performed over (i) a first period of time in which a cavity Q curve increases from a first percentage value to a second percentage value of a maximum Q value and (ii) a second period of time in which the cavity Q curve increases from a third percentage value to a fourth percentage value of the maximum Q value. The cavity Q curve may non-linearly and smoothly transition between (i) the first and second percentage values and (ii) the third and fourth percentage values.

公开(公告)号：US20180287330A1

公开(公告)日：2018-10-04

申请号：US15473924

申请日：2017-03-30

Applicant: Datalogic IP Tech S.R.L.

Inventor： Andrea Arcangeli ,  Mihamed Hammouda

IPC: H01S3/117 ,  H01S3/067 ,  H01S3/16

CPC classification number: H01S3/117 ,  G02F1/113 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/10046 ,  H01S3/1618 ,  H01S3/169 ,  H01S2301/02

Abstract: A system and method for an active Q-switched fiber laser cavity may include a pump source for emitting a laser beam at a wavelength along an optical path including an active optical medium. A modulation device may be configured to introduce tunable losses into the optical path. The tunable losses may be achieved through modulation of the transmissivity of an optical element within the optical path, the modulation of said optical element being performed over (i) a first period of time in which a cavity Q curve increases from a first percentage value to a second percentage value of a maximum Q value and (ii) a second period of time in which the cavity Q curve increases from a third percentage value to a fourth percentage value of the maximum Q value. The cavity Q curve may non-linearly and smoothly transition between (i) the first and second percentage values and (ii) the third and fourth percentage values.