Apple inc. (20250105594). SELF-MIXING INTERFEROMETRY USING BACKSIDE-EMITTING VCSEL DIODE WITH INTEGRATED PHOTODETECTOR
SELF-MIXING INTERFEROMETRY USING BACKSIDE-EMITTING VCSEL DIODE WITH INTEGRATED PHOTODETECTOR
Organization Name
Inventor(s)
Pengfei Qiao of El Cerrito CA US
Siddharth Joshi of Saint-Egreve FR
Nicolas Hotellier of Champagnier FR
Pierre-Antoine Delean of Domene FR
SELF-MIXING INTERFEROMETRY USING BACKSIDE-EMITTING VCSEL DIODE WITH INTEGRATED PHOTODETECTOR
This abstract first appeared for US patent application 20250105594 titled 'SELF-MIXING INTERFEROMETRY USING BACKSIDE-EMITTING VCSEL DIODE WITH INTEGRATED PHOTODETECTOR
Original Abstract Submitted
embodiments described herein include an optoelectronic sensing device having a vertical cavity surface emitting laser (vcsel), a resonance cavity photodetector (rcpd), and a tunnel junction. the vcsel is at least partly defined by a first set of semiconductor layers disposed on a substrate. the first set of semiconductor layers includes a first active region. the vcsel is configured to emit laser light towards the substrate, upon application of a first bias voltage, and undergo self-mixing interference upon reception of reflections or backscatters thereof. the rcpd is vertically adjacent to the vcsel and is at least partly defined by a second set of semiconductor layers disposed on the substrate. the second set of semiconductor layers includes a second active region. the rcpd is configured to detect, upon application of a second bias voltage, the self-mixing interference. the tunnel junction is disposed between the first active region and the second active region.
- Apple inc.
- Pengfei Qiao of El Cerrito CA US
- Fei Tan of Sunnyvale CA US
- Tong Chen of Fremont CA US
- Qinghong Du of Fremont CA US
- Siddharth Joshi of Saint-Egreve FR
- Nicolas Hotellier of Champagnier FR
- Alexander Hein of Munich DE
- Pierre-Antoine Delean of Domene FR
- H01S5/183
- H01S5/026
- H01S5/042
- H01S5/30
- CPC H01S5/18394
