Patent ID: 11955774
Assignee: SHENZHEN TECHNOLOGY UNIVERSITY
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. An elliptical multi-mesa laser structure, comprising:
a substrate layer, wherein an N contact layer is fixedly connected to the substrate layer;
an N-DBR, wherein the N-DBR is fixedly connected to a top of the substrate layer, and the N contact layer is arranged around the N-DBR; and a space layer is inserted into the N-DBR;
a functional layer, wherein the functional layer is fixedly connected to a top of the N-DBR; and
a P-DBR, wherein the P-DBR is fixedly connected to a top of the functional layer, and a top of the P-DBR is fixedly connected to a P contact layer; and another the space layer is inserted into the P-DBR;
wherein the functional layer comprises a confinement layer group fixedly connected to the N-DBR, wherein a top of the confinement layer group is fixedly connected to the P-DBR; and an active layer is embedded and fixedly connected in the confinement layer group;
the confinement layer group comprises an upper oxidation confinement layer group and a lower oxidation confinement layer group respectively fixedly connected on upper and lower end faces of the active layer; a bottom of the lower oxidation confinement layer group is fixedly connected to a top surface of the N-DBR, and a top surface of the upper oxidation confinement layer group is fixedly connected to a bottom surface of the P-DBR; and
the upper oxidation confinement layer group and the lower oxidation confinement layer group each comprise several Al GaAs oxide layers where x is in a range of 0.94-1, and the upper oxidation confinement layer group and the lower oxidation confinement layer group are symmetrically arranged with respect to the active layer.