Abstract

One illustrative laser disclosed herein includes a gain medium layer having a first width in a transverse direction that is orthogonal to a laser emitting direction of the laser, and an upper light-confining structure positioned above an upper surface of the gain medium layer, wherein the upper light-confining structure has a second width in the transverse direction that is equal to or less than the first width and comprises at least one material having an index of refraction that is at least 2.0. The laser also includes a lower light confining structure positioned below a lower surface of the gain medium layer, wherein the lower light-confining struc ture has a third width in the transverse direction that is equal to or less than the first width and comprises at least one material having an index of refraction that is at least 2.0.

Date

2021

Authors

Y Bian, AP Jacob

Inventors

Yusheng Bian, Ajey Poovannummoottil Jacob

Patent_office

US

Patent_number

11088503

Application_number

16525878