Segmented vertical cavity surface emitting laser

• Main Authors: Holger Joachim Monch, Stephen Gronenborn
• Format: Patent
• Language: English
• Published: 31.07.2019
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The invention describes a Vertical Cavity Surface Emitting Laser device (100). The Vertical Cavity Surface Emitting Laser device (100) comprises a first electrical contact (105), a substrate (110), a second electrical contact (135) and an optical resonator. The optical resonator is arranged on a first side of the substrate (110). The optical resonator comprises a first reflecting structure comprising a first distributed Bragg reflector (115), a second reflecting structure comprising a second distributed Bragg reflector (130), an active layer (120) arranged between the first reflecting structure and the second reflecting structure and a guiding structure (132). The guiding structure (132) is arranged to define a first relative intensity maximum of an intensity distribution within the active layer (120) at a first lateral position of the optical resonator such that a first light emitting area (124) is provided, wherein the guiding structure (132) is arranged to define at least a second relative intensity maximum of the intensity distribution within the active layer (120) at a second lateral position of the optical resonator such that second light emitting area (124) is provided, wherein the guiding structure (132) is further arranged to reduce an intensity of the intensity distribution in between the at least two light-emitting areas (124) during operation of the Vertical Cavity Surface Emitting Laser device (100), and wherein the guiding structure (132) is arranged within a layer stack of the first distributed Bragg reflector (1 15) or the second distributed Bragg reflector (130). The invention further describes the optical sensor (300) comprising such a Vertical Cavity Surface Emitting Laser device (100), a mobile communication device (380) comprising such an optical sensor (300) and a method of fabricating the Vertical Cavity Surface Emitting Laser device (100).