Samsung Electronics Co., Ltd.

Changbum Lee

Sunil Kim

Byounglyong Choi

Duhyun Lee

Changgyun Shin

Dongsik Shim

Dongjae Shin

Dongwook Lee

Jaechul Park

Jungwoo Kim

Jinmyoung Kim

Eunkyung Lee

Hyunil Byun

Bongyong Jang

Junghyun Park

Byunggil Jeong

Kihwan Kim

Byungkyu Lee

Changjung Kim

Seungeon Ahn

Bosoo Kang

Myungjae Lee

A photonic integrated circuit platform includes a substrate, a first oxide layer disposed on the substrate and including an insulating transparent oxide, and a first optical element layer disposed on the first oxide layer and including a semiconductor material. The photonic integrated circuit platform further includes a second optical element layer disposed on the first optical element layer and including an insulating material different from the insulating transparent oxide of the first oxide layer, the second optical element layer further including a compound semiconductor material different from the semiconductor material of the first optical element layer, a second oxide layer disposed on the second optical element layer and including an insulating transparent oxide, and a plurality of optical elements formed by patterning the first optical element layer or the second optical element layer.

Photonic integrated circuit platform and optical phase array device using the same

Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.

Optical isolator and photonic integrated circuit including the same

Provided in a method of fabricating an optical element array including providing a silicon substrate, providing a first element layer on the silicon substrate, the first element layer including a plurality of passive optical elements, providing a plurality of semiconductor blocks on a compound semiconductor wafer, providing semiconductor dies by dicing the compound semiconductor wafer by the plurality of semiconductor blocks, and providing a second element layer by providing the semiconductor dies on the first element layer, each of the plurality of semiconductor blocks contacting at least one corresponding passive optical element from among the plurality of passive optical elements.

Optical element array, optical system and method of manufacturing optical element array

A beam steering apparatus may include: a mirror; a refractive index modulation layer disposed on the mirror; a nanoantenna on the refractive index modulation layer; and an insulating layer disposed between the nanoantenna and the refractive index modulation layer, wherein the insulating layer has a thickness distribution in which a first thickness of the insulating layer on a central region of the mirror is less than a second thickness of the insulating layer on an edge region of the mirror, wherein a refractive index of the refractive index modulation layer is modulated to control propagation direction of beam.

Meta device and manufacturing method thereof

A variable wavelength light source and an apparatus including the same are disclosed. The variable wavelength light source includes: a first waveguide; a second waveguide spaced apart from the first waveguide; a first optical amplifier including a first gain medium; and a second optical amplifier including a second gain medium that is different from the first gain medium.

Variable wavelength light source and apparatus including the same

A laser beam steering device and a system including the laser beam steering device are provided. The laser beam steering device includes a refractive index change layer having a refractive index that changes based on an electrical signal; at least one antenna pattern disposed above the refractive index change layer; a wavelength selection layer disposed under the refractive index change layer and configured to correspond to a wavelength of a laser beam incident onto the laser beam steering device; and a driver configured to apply the electrical signal to the refractive index change layer.

Laser beam steering device and system including the same

A light modulating device includes a metal layer, a variable resistance material layer above the metal layer and having a plurality of resistance states depending on a voltage applied thereto, and a meta surface layer above the variable resistance material layer and including a nano structure comprising a conductive material and having a sub-wavelength dimension.

Light modulating device and electronic apparatus including the same

Nano antenna structures and methods of manufacturing the same are provided. A nano antenna structure includes a reflective layer, a transparent conductive layer disposed on the reflective layer, an insulating layer disposed on the transparent conductive layer, a nano antenna material layer disposed on the insulating layer, and an adhesion layer disposed between the insulating layer and the nano antenna material layer.

Nano antenna structure and method of manufacturing the same

A meta device may include: a substrate; a mirror disposed on the substrate; a refractive index modulation layer disposed on the mirror; a nanoantenna facing the mirror with the refractive index modulation layer, the refractive index modulation layer being disposed between the nanoantenna and the mirror; and an insulating layer disposed between the nanoantenna and the refractive index modulation layer and having a non-uniform thickness. Since the thickness of the insulating layer is not uniform, a withstanding voltage characteristic of the meta device is improved.

A light steering apparatus is provided including a tunable laser source and a system including the light steering apparatus. The light steering apparatus includes the tunable laser source and a steering device. A plurality of laser beams having optical coherence with each other and output from the tunable laser source are incident onto the steering device, and the steering device includes a plurality of modulation units for beam steering.

Light steering apparatus and system including the light steering apparatus

A beam steering apparatus includes a transformation layer, of which a refraction index is changed by light irradiation, a pattern layer arranged on the transformation layer and comprises a plurality of patterns, and a light irradiation unit arranged under the transformation layer. The pattern layer has patterns of a metasurface shape to reflect an external laser. The light irradiation unit may emit light having different characteristics.

Growing community of inventors

Seoul, South Korea

Changbum Lee