公开(公告)号：US20240348015A1

公开(公告)日：2024-10-17

申请号：US18612461

申请日：2024-03-21

Applicant: California Institute of Technology

Inventor： Alireza Marandi ,  Luis M. Ledezma ,  Louise E. Schul ,  Selina Zhou

IPC: H01S5/183 ,  H01S5/04 ,  H01S5/20

CPC classification number: H01S5/18327 ,  H01S5/041 ,  H01S5/2018

Abstract: A device including a chip including a photonic integrated circuit comprising an external cavity for a source of electromagnetic radiation; the source of electromagnetic radiation attached to a top surface of the chip, the source comprising a semiconductor active region comprising, or coupled to, an output for the electromagnetic radiation, wherein the output is oriented to emit the electromagnetic radiation into the top surface in an emission direction that is inclined with respect to a plane of propagation of the electromagnetic radiation in the external cavity; and a coupler coupling the active region to the external cavity via the top surface to integrate the external cavity with the active region. The coupler partially couples the electromagnetic radiation outputted from the active region to the external cavity, and feedback from the external cavity to the active region.