公开(公告)号：US20240295690A1

公开(公告)日：2024-09-05

申请号：US18441693

申请日：2024-02-14

申请人： Meta Platforms Technologies, LLC

发明人： Dusan COSO ,  Steven Alexander-Boyd Hickman ,  Giuseppe Calafiore ,  Petr Markov ,  Shermin Arab ,  John Michael Goward ,  Rahul Agarwal ,  Zhujun Shi

IPC分类号： G02B6/12

CPC分类号： G02B6/12 ,  G02B2006/12121

摘要： According to examples, an apparatus for implementing a hermetically-covered photonic integrated circuit on a substrate having an integrated laser diode is described. The apparatus may include a cover wafer, a housing layer including a waveguide, the waveguide including a photonic integrated circuit, a laser die including a laser cavity, and a base substrate. The base substrate may include an emission window to provide a reflective design and to eliminate a need for a polarized beam splitter, a through-wafer via element to electrical coupling to the laser die and one or more pillars to set a height of the laser die relative to the photonic integrated circuit.