SURFACE EMITTING LASER DEVICE

• Main Authors: TAZAWA, Komei, LIANG, Ji-Hao
• Format: Patent
• Language: English; French; German
• Published: 25.03.2020
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; DEVICES USING STIMULATED EMISSION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS; LIGHTING; MECHANICAL ENGINEERING; NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; SEMICONDUCTOR DEVICES; WEAPONS

Provided is a surface emitting laser device (10) including a plurality of surface emitting laser elements (12A) and capable of significantly reducing the crosstalk of light and the formation of a dark line. The surface emitting laser device includes: a mounting substrate (11); a surface emitting laser array (12) including a plurality of surface emitting laser elements (12A) arranged side by side on the mounting substrate; a plurality of light absorption layers (17) formed on the plurality of surface emitting laser elements, respectively, and each including an opening (AP); and a plurality of wavelength conversion plates (13A) formed on the plurality of light absorption layers, respectively, and each including a fluorescent plate (PL) and a light reflection film (RF) covering a side surface of the fluorescent plate. The absorption layer (17) may include an antireflection layer (17A) at an interface with the surface emitting laser element.