Agency for Defense Development

Zaeill Kim

Yonggi Jo

Duk Young Kim

Suyong Lee

Taek Jeong

Dong-Jin Kim

Sangkyung Lee

Nam Hun Park

Byungtae Ryu

Hongbeen Chang

Jaesung Heo

Jeong-Min Cha

Yeung-Jo Lee

Sangho Bae

Yongsup Ihn

Nam-Choon Kim

Jihwan Kim

An apparatus for pseudo thermal light source ghost imaging and range sensing using narrow-band spontaneous emission includes: a pseudo thermal light source including a resonator type laser diode; a temperature controller configured to control a temperature of the pseudo thermal light source; a current controller configured to control a current of the pseudo thermal light source; a beam splitter configured to split a laser beam emitted from the pseudo thermal light source into a first beam and a second beam; and a temporal correlator configured to infer a target range to an object through temporal coherence between the first beam and the second beam, wherein the pseudo thermal light source oscillates a laser beam having second order coherence when a specific current is applied according to temperature.

Apparatus and method for pseudo thermal light source ghost imaging and range sensing using narrow-band spontaneous emission

An object of the present invention is to provide a microwave-optic conversion system of quantum signals employing a 3-dimensional microwave resonator and a crystal oscillator, which enables microwave-optic conversion employing a microwave resonator and a widely commercialized crystal oscillator which may be manufactured by simple machine processing. In order to achieve the object, the microwave-optic conversion system of quantum signals employing a 3-dimensional microwave resonator and a crystal oscillator includes: a microwave resonator including a hollow body made of metal, and a penetration hole formed on a front surface of the hollow body; and a crystal oscillator positioned inside the hollow body.

Microwave-optic conversion system of quantum signals employing 3-dimensional microwave resonator and crystal oscillator

The objective of the present invention is to provide a quantum receiver using square of homodyne detection for detecting a target of a quantum radar by using the square of homodyne detection that uses homodyne detection used in quantum information processing using continuous variables, and data processing, and a measurement method therefore. In order to achieve the above objective, the quantum receiver for detecting a target of a quantum radar using the square of homodyne detection according to the present invention comprises: a first 50:50 beam splitter for mixing signals coming into an input terminal; and two light quantity measurement units for measuring the quantity of light respectively outputted to two output terminals of the first 50:50 beam splitter.

Quantum receiver using square of homodyne detection for target detection of quantum radar and measurement method therefor

A low-shock separation device is characterized in that an internal locking structure is unlocked and a bolt is separated by operating a specific part of components thereof using high pressure that is generated by combustion of powder.

Low-shock separation device

Provided is a performance testing device including: a compressor configured to generate compressed air; an air storage tank configured to receive the compressed air generated by the compressor; a regulator connected to each of the compressor and the air storage tank to control a pressure of the compressed air; a main supply line connected to the regulator to move the compressed air; an input port line and an output port line connected to the main supply line to receive the compressed air from the air storage tank and deliver the compressed air to an input port or an output port of a test object; and a pneumatic booster configured to pressurize the compressed air received in the input port line or the output port line, wherein in order to test a performance of the test object, the pressurized compressed air is applied to the input port or the output port of the test object.

Device for testing performance of pyro device using high-pressure air

Growing community of inventors

Daejeon, South Korea

Zaeill Kim