HIGH-POWER VERTICAL CAVITY SURFACE EMITTING LASER DIODE (VCSEL)

摘要

Provided is a high-power vertical cavity surface emitting laser diode (VCSEL), including a first epitaxial region, an active region and a second epitaxial region. One of the first epitaxial region and the second epitaxial region is an N-type epitaxial region, and the other of the first epitaxial region and the second epitaxial region includes a PN junction. The PN junction includes a P-type epitaxial layer, a tunnel junction and an N-type epitaxial layer. The tunnel junction is located between the P-type epitaxial layer and the N-type epitaxial layer, and the P-type epitaxial layer of the PN junction is closest to the active region.