Patents by Inventor Jang Uk Shin

Jang Uk Shin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120128290
    Abstract: Provided is an optical module. The optical module includes: an optical bench having a first trench of a first depth and a second trench of a second depth that is lower than the first depth; a lens in the first trench of the optical bench; at least one semiconductor chip in the second trench of the optical bench; and a flexible printed circuit board covering an upper surface of the optical bench except for the first and second trenches, wherein the optical bench is a metal optical bench or a silicon optical bench.
    Type: Application
    Filed: June 7, 2011
    Publication date: May 24, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak HAN, Jang Uk Shin, Sang-Pil Han, Sang Ho Park, Yongsoon Baek
  • Publication number: 20120020614
    Abstract: Provided are an optical switch device having a simple light path and capable of achieving high speed switching, and a method of manufacturing the optical switch device. The optical switch device comprises one or more first optical waveguides extending in a first direction, one or more second optical waveguides connected to the first optical waveguides in a second direction crossing the first direction, and one or more switching parts configured to control light transmitted in the first direction within the first optical waveguide connected with the second waveguide, to selectively reflect the light to the second waveguide extending in the second direction.
    Type: Application
    Filed: January 10, 2011
    Publication date: January 26, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak HAN, Jang Uk Shin, Sang Ho Park, Sang-Pil Han, Yongsoon Baek
  • Patent number: 8086105
    Abstract: Provided is a wavelength division multiplexer/demultiplexer having a flat wavelength response. In the wavelength division multiplexer/demultiplexer, a modified taper-shaped optical waveguide is interposed between an input waveguide and a first slab waveguide, such that the distribution of an optical signal input to an Arrayed Waveguide Grating (AWG) has a sinc-function shape. Thus, a flat wavelength response can be obtained in an output waveguide. In addition, the modified taper-shaped optical waveguide interposed to obtain a flat wavelength response has a small size and a simple structure, and thus can be applied to a conventional wavelength division multiplexer/demultiplexer without a design change.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 27, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jang Uk Shin, Sang Ho Park, Young Tak Han, Sang Pil Han, Yong Soon Baek
  • Patent number: 8055106
    Abstract: An optical communication device provided with digital optical switching includes a substrate; and at least one optical switch including a first optical switch composed of a main core disposed on the substrate and extending along a first direction, the main core including an optical input part and a transmission output part sequentially arranged along the first direction; a heater extending along a second direction to cross the main core; and a reflection output part extending along a third direction from a central point of the main core. The first direction and the second direction define a first angle there between, the second direction and the third direction define a second angle there between, and the first angle is equal to the second angle. An optical signal is outputted through the reflection output part or the transmission output part in response to heat from operation of the heater.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: November 8, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Tak Han, Jang Uk Shin, Sang-Pil Han, Sang Ho Park, Yongsoon Baek
  • Publication number: 20110150388
    Abstract: Provided are an optical switch using a Mach-Zehnder interferometer and an optical switch matrix including the same. The optical switch includes a first coupler, an optical delay line, and a second coupler. The first coupler branches an optical signal transmitted to a first or second input waveguide into two optical signals. The optical delay line includes first and second arm waveguides of the same length transmitting the branched optical signal and a heater heating the first arm waveguide. The first and second arm waveguides have one of a full wavelength optical path difference and a half wavelength optical path difference according to whether the heater is turned on. The second coupler branches optical signals outputted from the optical delay line into two optical signals, respectively, and transmits the branched optical signals to the first or second output waveguide.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 23, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jang Uk SHIN, Young Tak Han, Sang Ho Park, Sang-Pil Han, Yongsoon Baek
  • Publication number: 20110141393
    Abstract: Provided is an optical device. The optical device includes an optical waveguide comprising a core surrounded by a cladding, a light source providing light to the optical waveguide, and an optics system disposed between the optical waveguide and the light source, the optics system focusing the light emitted from the light source into the core of the optical waveguide and a portion of the cladding adjacent to the core.
    Type: Application
    Filed: July 8, 2010
    Publication date: June 16, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang-Pil HAN, Young-Tak Han, Sang Ho Park, Jang Uk Shin, Yongsoon Baek
  • Publication number: 20110116740
    Abstract: Provided is an optical communication device including optical switches. The optical communication device a first multi-mode core disposed on a substrate, the first multi-mode core extending in a first direction and second multi-mode cores disposed on a substrate, the second multi-mode cores parallelly extending in a second direction non-parallel to the first direction to intersect the first multi-mode core. The heaters respectively intersect intersectional regions between the first and second multi-mode cores.
    Type: Application
    Filed: February 11, 2010
    Publication date: May 19, 2011
    Applicants: INSTITUTE
    Inventors: Young-Tak Han, Jang Uk Shin, Sang Ho Park, Sang-Pil Han, Yongsoon Baek, Young-Ouk Noh
  • Publication number: 20110085760
    Abstract: Provided is an optical device. The optical device includes a substrate having a waveguide region and a mounting region, a planar lightwave circuit (PLC) waveguide including a lower-clad layer and an upper-clad layer on the waveguide region of the substrate and a platform core between the lower-clad layer and the upper-clad layer, a terrace defined by etching the lower-clad layer on the mounting region of the substrate, the terrace including an interlocking part, an optical active chip mounted on the mounting region of the substrate, the optical active chip including a chip core therein, and a chip alignment mark disposed on a mounting surface of the optical active chip. The optical active chip is aligned by interlocking between the interlocking part of the terrace and the chip alignment mark of the optical active chip and mounted on the mounting region.
    Type: Application
    Filed: February 11, 2010
    Publication date: April 14, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak HAN, Sang Ho Park, Dong-Hun Lee, Jang Uk Shin, Sang-Pil Han, Yongsoon Baek
  • Publication number: 20100142884
    Abstract: Provided is an optical communication device including an optical switch. The optical communication device a main core including an optical input part and a transmission output part and a reflection output part disposed on a side of the main core. An optical signal is outputted through the reflection output part or the transmission output part according to an operation of a heater.
    Type: Application
    Filed: May 8, 2009
    Publication date: June 10, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak HAN, Jang Uk Shin, Sang-Pil Han, Sang Ho Park, Yongsoon Baek
  • Publication number: 20100008670
    Abstract: Provided is a wavelength selective switch. The wavelength selective switch includes a first wavelength division multiplexer, an M number of optical switches, an (M+N?1) number of optical combiners, and a second wavelength division multiplexer. The first wavelength division multiplexer receives optical signals of an M number of wavelength channels to divide the received optical signals according to each channel, thereby outputting the divided optical signals. The M number of optical switches changes a path of on an optical signal outputted by an M number of wavelength channels from the first wavelength division multiplexer into one of an N number of output ports. The (M+N?1) number of optical combiners is respectively connected to the N number of output ports of the optical switches. The (M+N?1) number of optical combiners couple the N number of inputted optical signals to one output port. The second wavelength division multiplexer has an (M+N?1) number of input ports and an N number of output ports.
    Type: Application
    Filed: November 21, 2008
    Publication date: January 14, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jang-Uk Shin, Young-Tak Han, Sang-Pil Han, Sang-Ho Park, Yongsoon Baek
  • Publication number: 20090154928
    Abstract: Provided is a wavelength division multiplexer/demultiplexer having a flat wavelength response. In the wavelength division multiplexer/demultiplexer, a modified taper-shaped optical waveguide is interposed between an input waveguide and a first slab waveguide, such that the distribution of an optical signal input to an Arrayed Waveguide Grating (AWG) has a sinc-function shape. Thus, a flat wavelength response can be obtained in an output waveguide. In addition, the modified taper-shaped optical waveguide interposed to obtain a flat wavelength response has a small size and a simple structure, and thus can be applied to a conventional wavelength division multiplexer/demultiplexer without a design change.
    Type: Application
    Filed: September 30, 2008
    Publication date: June 18, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH
    Inventors: Jang Uk SHIN, Sang Ho Park, Young Tak Han, Sang Pil Han, Yong Soon Baek
  • Publication number: 20090154923
    Abstract: Provided is a wavelength selective switch (WSS), and more particularly, a wavelength selective switch for electrically switching a wavelength without physical displacement. The wavelength selective switch includes an optical demultiplexer for dividing an input optical signal into signals having wavelengths corresponding to respective channels, selecting either the optical signal of each channel obtained by dividing the input optical signal or an optical signal input via an add port, and outputting the selected optical signal; and an optical multiplexer including an optical deflecting unit for individually deflecting the optical signals of the respective channels received from the optical demultiplexer according to supplied current or applied voltage, wherein the optical signal of each channel deflected by the optical deflecting unit is output to a specific output port.
    Type: Application
    Filed: September 11, 2008
    Publication date: June 18, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Oh Kee KWON, Yong Soon Baek, Jang Uk Shin, Young Tak Han, Dong Hun Lee, Chul Wook Lee, Eun Deok Sim, Jong Hoi Kim, Sang Pil Han, Sang Ho Park
  • Patent number: 7218806
    Abstract: Provided are a multi-wavelength optical transceiver module and a multiplexer/demultiplexer using a thin film filter. The multi-wavelength optical transceiver module includes: a PLC platform, on which a predetermined optical waveguide unit is formed and an optical transmitter is mounted; an optical fiber coupled to one side of the PLC platform to transmit a predetermined light; a plurality of thin film filters coupled to another side of the PLC platform to separate input optical wavelengths; and an optical receiver coupled to one side of the thin film filters to receive light that is input from the optical fiber and transmits the thin film filters, thereby enabling mass production of the optical transceiver module with low cost.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: May 15, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Tak Han, Yoon Jung Park, Sang Ho Park, Jang Uk Shin, Duk Jun Kim, Hee Kyung Sung
  • Publication number: 20060133730
    Abstract: A method for manufacturing a plurality of light sources is provided with a low cost to economically construct a passive optical subscriber network of a wavelength division multiplexing method using a wavelength division multiplexing and demultiplexing device. More specifically, disclosed is a method for manufacturing a plurality of light sources with a low cost applying a planar lightwave circuit (PLC) hybrid integrated technology to a PLC chip as a method for constructing a light source with a plurality of wavelengths constituting an optical transmitter of a base station to economically construct a passive optical subscriber network of a wavelength division multiplexing method.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 22, 2006
    Inventors: Jang-Uk Shin, Sang-Ho Park, Duk-Jun Kim, Yoon-Jung Park, Young-Tak Han, Hee-Keyng Sung
  • Patent number: 6839497
    Abstract: An optical waveguide platform and a method of manufacturing the same are disclosed. The optical waveguide platform comprises an optical waveguide having a lower clad layer, a patterned core layer and an upper clad layer which are laminated on one area of said substrate sequentially, a terrace formed by patterning said lower clad layer, on the other area of said substrate, a metal and a solder formed on said terrace and an optical device mounted on said terrace containing said metal and said solder. According to the present invention, the optical waveguide platform can be manufactured in a simple method without damaging the optical waveguide and the manufacturing cost thereof can be reduced.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: January 4, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang Ho Park, Jang Uk Shin, Yoon Jung Park, Duk Jun Kim, Young Tak Han, Hee Keyng Sung
  • Patent number: 6807326
    Abstract: There is provided an optical module incorporating active elements such as light emitting devices or photo detective devices mounted on a single substrate. The optical module can suppress optical and electrical crosstalk by a blocking trench formed between the active elements for blocking optical and electromagnetic waves, and a metal barrier formed within the blocking trench for blocking the optical and electromagnetic waves. Further, the optical module can suppress the optical and the electrical crosstalk due to the optical and the electromagnetic waves directed upward the substrate by a housing body enclosing the substrate, a housing cover provided on the housing body, and a metal slit formed below the housing cover and above the metal barrier.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: October 19, 2004
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-tak Han, Duk-jun Kim, Jang-uk Shin, Sang-ho Park, Yoon-jung Park, Hee-keyng Sung
  • Patent number: 6804444
    Abstract: An optical waveguide platform and a manufacturing method thereof are provided. In the provided optical waveguide platform, a terrace on which an optical device is mounted is formed by using an etch stopper pattern formed on a lower clad layer. Therefore, the optical device is mounted without processing a silicon substrate. In addition, in the provided optical waveguide platform, the etch stopper pattern is formed on the lower clad layer to prevent defocus in a photolithography process due to an etch step, so as not to damage a fine waveguide pattern. Moreover, an optical waveguide is formed on the terrace in manufacturing the optical waveguide platform to examine the characteristics of the optical waveguide device before etching a trench.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: October 12, 2004
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jang-uk Shin, Duk-jun Kim, Sang-ho Park, Young-tak Han, Hee-keyng Sung
  • Publication number: 20040028312
    Abstract: An optical waveguide platform and a method of manufacturing the same are disclosed. The optical waveguide platform comprises an optical waveguide having a lower clad layer, a patterned core layer and an upper clad layer which are laminated on one area of said substrate sequentially, a terrace formed by patterning said lower clad layer, on the other area of said substrate, a metal and a solder formed on said terrace and an optical device mounted on said terrace containing said metal and said solder. According to the present invention, the optical waveguide platform can be manufactured in a simple method without damaging the optical waveguide and the manufacturing cost thereof can be reduced.
    Type: Application
    Filed: December 30, 2002
    Publication date: February 12, 2004
    Inventors: Sang Ho Park, Jang Uk Shin, Yoon Jung Park, Duk Jun Kim, Young Tak Han, Hee Keyng Sung
  • Publication number: 20040028351
    Abstract: There is provided an optical module incorporating active elements such as light emitting devices or photo detective devices mounted on a single substrate. The optical module can suppress optical and electrical crosstalk by a blocking trench formed between the active elements for blocking optical and electromagnetic waves, and a metal barrier formed within the blocking trench for blocking the optical and electromagnetic waves. Further, the optical module can suppress the optical and the electrical crosstalk due to the optical and the electromagnetic waves directed upward the substrate by a housing body enclosing the substrate, a housing cover provided on the housing body, and a metal slit formed below the housing cover and above the metal barrier.
    Type: Application
    Filed: March 3, 2003
    Publication date: February 12, 2004
    Inventors: Young-tak Han, Duk-jun Kim, Jang-uk Shin, Sang-ho Park, Yoon-jung Park, Hee-keyng Sung
  • Publication number: 20030190108
    Abstract: An optical waveguide platform and a manufacturing method thereof are provided. In the provided optical waveguide platform, a terrace on which an optical device is mounted is formed by using an etch stopper pattern formed on a lower clad layer. Therefore, the optical device is mounted without processing a silicon substrate. In addition, in the provided optical waveguide platform, the etch stopper pattern is formed on the lower clad layer to prevent defocus in a photolithography process due to an etch step, so as not to damage a fine waveguide pattern. Moreover, an optical waveguide is formed on the terrace in manufacturing the optical waveguide platform to examine the characteristics of the optical waveguide device before etching a trench.
    Type: Application
    Filed: November 12, 2002
    Publication date: October 9, 2003
    Inventors: Jang-uk Shin, Duk-jun Kim, Sang-ho Park, Young-tak Han, Hee-keyng Sung