公开(公告)号：US11817672B2

公开(公告)日：2023-11-14

申请号：US17582505

申请日：2022-01-24

Applicant: Lumentum Operations LLC

Inventor： Martin H. Muendel ,  Simonette Pierrot

IPC: H01S3/1118 ,  H01S3/067 ,  H01S3/081 ,  H01S3/00

CPC classification number: H01S3/1118 ,  H01S3/0675 ,  H01S3/06791 ,  H01S3/0811 ,  H01S3/0812 ,  H01S3/0057 ,  H01S2301/04 ,  H01S2301/085

Abstract: A pulse stretching fiber oscillator (or laser cavity) may comprise a chirped fiber Bragg grating (CFBG) and an optical circulator arranged such that a first portion of a beam that is transmitted through the CFBG continues to propagate through the laser cavity while a second portion of the beam that is reflected from the CFBG is stretched and chirped by the CFBG and directed out of the laser cavity by the optical circulator. Accordingly, a configuration of the CFBG and the optical circulator in the laser cavity may enable pulse stretching contemporaneous with outcoupling, which may prevent deleterious nonlinear phase from accumulating prior to stretching.

公开(公告)号：US11777273B2

公开(公告)日：2023-10-03

申请号：US17582505

申请日：2022-01-24

Applicant: Lumentum Operations LLC

Inventor： Martin H. Muendel ,  Simonette Pierrot

IPC: H01S3/1118 ,  H01S3/067 ,  H01S3/081 ,  H01S3/00

CPC classification number: H01S3/1118 ,  H01S3/0675 ,  H01S3/06791 ,  H01S3/0811 ,  H01S3/0812 ,  H01S3/0057 ,  H01S2301/04 ,  H01S2301/085

Abstract: A pulse stretching fiber oscillator (or laser cavity) may comprise a chirped fiber Bragg grating (CFBG) and an optical circulator arranged such that a first portion of a beam that is transmitted through the CFBG continues to propagate through the laser cavity while a second portion of the beam that is reflected from the CFBG is stretched and chirped by the CFBG and directed out of the laser cavity by the optical circulator. Accordingly, a configuration of the CFBG and the optical circulator in the laser cavity may enable pulse stretching contemporaneous with outcoupling, which may prevent deleterious nonlinear phase from accumulating prior to stretching.

公开(公告)号：US11417999B2

公开(公告)日：2022-08-16

申请号：US16692467

申请日：2019-11-22

Applicant: Lumentum Operations LLC

Inventor： Simonette Pierrot ,  Martin H. Muendel

IPC: H01S3/067 ,  H01S3/11 ,  H01S3/094 ,  H01S3/16 ,  H01S3/08 ,  G02B5/18 ,  G02B27/42

Abstract: An optical assembly provides dispersion control, modelocking, spectral filtering, and/or the like in a laser cavity. For example, the optical assembly may comprise a diffraction grating pair arranged to temporally and spatially disperse a beam on a forward pass through the optical assembly, a reflective device at an end of the optical assembly, and a focusing optic arranged to create a beam waist at the reflective device. The beam waist created at the reflective device may cause the beam to be inverted on a reverse pass through the optical assembly, and a temporal dispersion and a spatial dispersion of the beam may be doubled on the reverse pass through the optical assembly to form a temporally and spatially dispersed output from the optical assembly.

公开(公告)号：US11233372B2

公开(公告)日：2022-01-25

申请号：US16694741

申请日：2019-11-25

Applicant: Lumentum Operations LLC

Inventor： Martin H. Muendel ,  Simonette Pierrot

IPC: H01S3/11 ,  H01S3/067 ,  H01S3/081 ,  H01S3/00

Abstract: A pulse stretching fiber oscillator (or laser cavity) may comprise a chirped fiber Bragg grating (CFBG) and an optical circulator arranged such that a first portion of a beam that is transmitted through the CFBG continues to propagate through the laser cavity while a second portion of the beam that is reflected from the CFBG is stretched and chirped by the CFBG and directed out of the laser cavity by the optical circulator. Accordingly, a configuration of the CFBG and the optical circulator in the laser cavity may enable pulse stretching contemporaneous with outcoupling, which may prevent deleterious nonlinear phase from accumulating prior to stretching.

公开(公告)号：US11029467B2

公开(公告)日：2021-06-08

申请号：US16587834

申请日：2019-09-30

Applicant: Lumentum Operations LLC

Inventor： Martin H. Muendel ,  Richard D. Faulhaber ,  James Lefort ,  James J. Morehead ,  Vincent Petit ,  Simonette Pierrot ,  Kyle R. Schneider

IPC: G02B6/255 ,  G02B6/122 ,  G02B6/42 ,  C03C3/04 ,  G02B6/38 ,  G02B6/12

Abstract: A method may include performing an active alignment to enable optical coupling between a first optical fiber and a second optical fiber via an imaging structure. An end of the first optical fiber may be at a first location on a first surface of the imaging structure. The first location may be a first transverse offset distance from an axis of the imaging structure. An end of the second optical fiber may be at a second location of the first surface of the imaging structure. The second location may be a second transverse offset distance from the axis of the imaging structure. The method may include fusion splicing the end of the first optical fiber at the first location on the first surface of the imaging structure, and fusion splicing the end of the second optical fiber at the second location on the first surface of the imaging structure.