公开(公告)号：US20240348016A1

公开(公告)日：2024-10-17

申请号：US18348933

申请日：2023-07-07

Applicant: Lumentum Operations LLC

Inventor： Richa DUBEY ,  Matthew Glenn PETERS

IPC: H01S5/183 ,  H01S5/10 ,  H01S5/343

CPC classification number: H01S5/18394 ,  H01S5/1096 ,  H01S5/18338 ,  H01S5/34313

Abstract: A vertical-cavity surface-emitting laser (VCSEL) may include a substrate, a first mirror structure, and a cavity region to generate light. The cavity region may cause a resonance wavelength of a first portion of the light and a resonance wavelength of a second portion of the light to be offset from a gain peak of the VCSEL, where the first portion has a first polarization and the second portion has a second polarization, and an offset of the resonance wavelength of the first portion is different from an offset of the resonance wavelength of the second portion. The VCSEL may include a confinement aperture that has an asymmetric shape to cause spectral separation of the resonance wavelength of the first portion and the resonance wavelength of the second portion. The VCSEL may include a second mirror structure and one or more layers that form an output aperture.

公开(公告)号：US20250079800A1

公开(公告)日：2025-03-06

申请号：US18545914

申请日：2023-12-19

Applicant: Lumentum Operations LLC

Inventor： Eric R. HEGBLOM ,  Richa DUBEY ,  Benjamin KESLER

IPC: H01S5/183

Abstract: A vertical-cavity surface-emitting laser (VCSEL) may include a first top mirror structure over a cavity region. The VCSEL may include a grating layer over the first top mirror structure. The grating layer may comprise a plurality of oxidized regions that form a grating structure in the grating layer. The grating structure may be associated with polarization of output light emitted by the VCSEL. The surface of the grating layer may be a planar surface.

公开(公告)号：US20250105593A1

公开(公告)日：2025-03-27

申请号：US18545962

申请日：2023-12-19

Applicant: Lumentum Operations LLC

Inventor： Richa DUBEY ,  Yu ZHANG

IPC: H01S5/183 ,  H01S5/062 ,  H01S5/20

Abstract: A vertical-cavity surface-emitting laser (VCSEL) may include a distributed Bragg reflector (DBR) stack. The DBR stack may include a mirror structure over a cavity region. The DBR stack may include an etch stop layer over the mirror structure. The DBR stack may include a grating layer over the etch stop layer. The grating layer may include a grating structure associated with polarization of output light emitted by the VCSEL.

公开(公告)号：US20250007245A1

公开(公告)日：2025-01-02

申请号：US18545901

申请日：2023-12-19

Applicant: Lumentum Operations LLC

Inventor： Richa DUBEY ,  Eric R. HEGBLOM ,  Benjamin KESLER ,  Matthew Glenn PETERS

IPC: H01S5/183

Abstract: A vertical-cavity surface-emitting laser (VCSEL) may include a first mirror structure over a cavity region. The VCSEL may include a grating associated with polarizing light emitted by the VCSEL. The grating may be over the first mirror structure. The VCSEL may include a mode filter (MF) structure over the grating. The MF structure may comprise an MF layer in a first region of the MF structure to at least partially suppress a higher order transverse mode (HOM) of the light, the MF layer comprising a dielectric layer. The MF structure may include a second minor structure in at least a second region of the MF structure to increase reflectivity on a side of the VCSEL comprising the first minor structure.