OPTICAL MODULATION ELEMENT, BEAM STEERING DEVICE INCLUDING THE SAME, AND ELECTRONIC DEVICE INCLUDING BEAM STEERING DEVICE

• Main Authors: LEE DUHYUN, SHIN CHANG GYUN, JEONG BYUNG-GIL, KIM SUN-IL, PARK JUNGHYUN
• Format: Patent
• Language: English; Japanese
• Published: 01.04.2021
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide an optical modulation element, a beam steering device including the same, and an electronic device including a beam steering device.SOLUTION: An optical modulation element that amplifies an intensity of incident light to modulate a phase is provided. An optical modulation element 1000 includes a first DBR layer 100 formed by alternately and repeatedly stacking two refraction layers with different refraction factors and having a first reflection factor, an active layer 200 provided on the first DBR layer 100, including a quantum well structure with a multilayer structure formed by alternately stacking a well layer 202 and a first barrier layer 201, and including at least one quantum dot 203 in the well layer 202, and a second DBR layer 300 provided on the active layer 200, formed by alternately and repeatedly stacking two refraction layers with different refraction factors, and having a second reflection factor.SELECTED DRAWING: Figure 1 【課題】光変調素子、それを含むビームステアリング装置、及びビームステアリング装置を含む電子装置を提供する。【解決手段】入射光の強度を増幅して位相を変調する光変調素子を提供する。光変調素子１０００は、屈折率が互いに異なる２層の屈折率層が反復的に交互に積層されて形成され、第１反射率を有する第１ＤＢＲ層１００、第１ＤＢＲ層１００上に設けられ、井戸層２０２及び第１バリア層２０１が交互に積層されて形成された積層構造の量子井戸構造を含み、井戸層２０２の内部には、少なくとも１つの量子点２０３が設けられる活性層２００、並びに活性層２００上に設けられ、屈折率が互いに異なる２層の屈折率層が反復的に交互に積層されて形成され、第２反射率を有する第２ＤＢＲ層３００を含んでいる。【選択図】図１