Patents by Inventor O Kyun Kwon
O Kyun Kwon 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).
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Publication number: 20130243013Abstract: The present disclosure relates to a tunable laser module including a light gain area unit for outputting an optical signal; an optical distributor for separating the optical signal output from the light gain area unit; two comb reflection units for reflecting a part of optical signals separated by the optical distributor and allow a part of the optical signals to penetrate; two phase units for changing phases of the optical signals penetrating the two comb reflection units; an optical coupler for combining the optical signals of which the phases are changed by the two phase units; and an optical amplifier for amplifying the optical signal combined by the optical coupler, wherein the light gain area unit oscillates a laser by totally reflecting the optical signals reflected by the two comb reflection units.Type: ApplicationFiled: November 14, 2012Publication date: September 19, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Ki-Hong YOON, O-Kyun Kwon, Su Hwan Oh, Kisoo Kim, Byung-seok Choi, Hyun Soo Kim
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Publication number: 20130163916Abstract: Disclosed are an optical waveguide platform with integrated active transmission device and monitoring photodiode. The optical waveguide platform with hybrid integrated optical transmission device and optical active device includes an optical waveguide region formed by stacking a lower cladding layer, a core layer and an upper cladding layer on a substrate; a trench region formed by etching a portion of the optical waveguide region; and a spot expanding region formed on the core layer in the optical waveguide region, in which the optical transmission device is mounted in the trench region and the optical active device is flip-chip bonded to the spot expanding region. The monitoring photodiode is flip-chip bonded to the spot expanding region of the core layer of the optical waveguide, thereby monitoring output light including an optical coupling loss that occurs during flip-chip bonding.Type: ApplicationFiled: June 4, 2012Publication date: June 27, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Soo KIM, Jong Sool Jeong, Mi-Ran Park, Byungseok Choi, O-Kyun Kwon
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Patent number: 8428091Abstract: Provided is a tunable laser module emitting an optical signal having high speed, high power and wideband wavelength tuning. The tunable laser module includes a laser array configured to emit an optical signal having a plurality of different lasing wavelengths, a temperature controller configured to change a temperature of the laser array, and an optical integration device configured to modulate or amplify the optical signal at a side of the laser array opposing the temperature controller.Type: GrantFiled: December 20, 2010Date of Patent: April 23, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Mi-Ran Park, O-Kyun Kwon, Byung-seok Choi, Dae Kon Oh
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Patent number: 8363685Abstract: Provided is a wavelength tunable external cavity laser (laser beam) generating device. The wavelength tunable external cavity laser generating devices includes: an optical amplifier, a comb reflector, and an optical signal processor connected in series on a first substrate; and an external wavelength tunable reflector disposed on a second substrate adjacent to the first substrate and connected to the optical amplifier, wherein the comb reflector includes: a waveguide disposed on the first substrate; a first diffraction grating disposed at one end of the waveguide adjacent to the optical amplifier; and a second diffraction grating disposed at the other end of the waveguide adjacent to the optical signal processor, wherein the optical amplifier, the comb reflector, and the optical signal processor constitute a continuous waveguide.Type: GrantFiled: January 28, 2011Date of Patent: January 29, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Hyun Soo Kim, Ki-Hong Yoon, Kisoo Kim, Byung-Seok Choi, O-Kyun Kwon
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Publication number: 20120307857Abstract: Provided are a high-speed superluminescent diode, a method of manufacturing the same, and a wavelength-tunable external cavity laser including the same. The superluminescent diode includes a substrate having an active region and an optical mode size conversion region, waveguides including an ridge waveguide in the active region and a deep ridge waveguide in the optical mode size conversion region connected to the active waveguide, an electrode disposed on the ridge waveguide; planarizing layers disposed on sides of the ridge waveguide and the deep ridge waveguide on the substrate, and a pad electrically connected to the electrode, the pad being disposed on the planarizing layers outside the active waveguide.Type: ApplicationFiled: June 1, 2012Publication date: December 6, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Su Hwan Oh, Ki-Hong Yoon, Kisoo Kim, O-Kyun Kwon, Oh Kee Kwon, Byung-Seok Choi, Jongbae Kim
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Publication number: 20120281274Abstract: A semiconductor optical device includes a first mode converting core, a light amplification core, a second mode converting core, and a light modulation core disposed in a first mode converting region, a light amplification region, a second mode converting region, and a light modulating region of a semiconductor substrate, respectively, and a current blocking section covering at least sidewalls and a top surface of the light amplification core. The first mode converting core, the light amplification core, the second mode converting core, and the light modulation core are arranged along one direction in the order named, and are connected to each other in butt joints. The current blocking section includes first, second, and third cladding patterns sequentially stacked. The second cladding pattern is doped with dopants of a first conductivity type, and the first and third cladding patterns are doped with dopants of a second conductivity type.Type: ApplicationFiled: November 30, 2011Publication date: November 8, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong Churl KIM, Kisoo Kim, Hyun Soo Kim, Byung-seok Choi, O-Kyun Kwon, Jong Sool Jeong, Dae Kon Oh
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Publication number: 20120134014Abstract: Disclosed is a light generating device which comprises a first reflective semiconductor optical amplifier emitting a first light along a first direction, a second reflective semiconductor optical amplifier emitting the second light in a direction opposite to the first direction, an optical distributer reflecting a part of an incident light and to pass the remaining of the incident light, and an optical comb filter passing a wavelength component of a specific period.Type: ApplicationFiled: October 26, 2011Publication date: May 31, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jong Sool Jeong, Byung-seok Choi, O-Kyun Kwon
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Patent number: 8183633Abstract: Provided is a semiconductor and a method for forming the same. The method includes forming a buried insulating layer locally in a substrate. The substrate is etched to form an opening exposing the buried insulating layer, and a silicon pattern spaced in at least one direction from the substrate is formed on the buried insulating layer. A first insulating layer is formed to enclose the silicon pattern.Type: GrantFiled: July 30, 2010Date of Patent: May 22, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: O-Kyun Kwon, Dong-Woo Suh, Jung-Hyung Pyo, Gyung-Ock Kim
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Publication number: 20120104531Abstract: Provided are an avalanche photodiode and a method of fabricating the same. The method of fabricating the avalanche photodiode includes sequentially forming a compound semiconductor absorption layer, a compound semiconductor grading layer, a charge sheet layer, a compound semiconductor amplification layer, a selective wet etch layer, and a p-type conductive layer on an n-type substrate through a metal organic chemical vapor deposition process.Type: ApplicationFiled: July 27, 2011Publication date: May 3, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mi-Ran PARK, O-Kyun Kwon
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Publication number: 20120106578Abstract: A wavelength-tunable external cavity laser generating device is provided. The wavelength-tunable external cavity laser generating device includes a reflection-type multi-mode interferometer, an optical amplifier disposed between the reflection-type multi-mode interferometer and an external wavelength-tunable reflector to amplify light, and an optical signal processor configured to process light from the reflection-type multi-mode interferometer. The reflection-type multi-mode interferometer includes a multi-mode waveguide, an input waveguide connecting the optical amplifier and one end of the multi-mode waveguide, and an output waveguide configured to connect the optical signal processor and the other end of the multi-mode waveguide.Type: ApplicationFiled: September 23, 2011Publication date: May 3, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Soo KIM, Jong Sool Jeong, Ki-Hong Yoon, Kisoo Kim, O-Kyun Kwon
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Patent number: 8165437Abstract: Provided are semiconductor integrated circuits including a grating coupler for optical communication and methods of forming the same. The semiconductor integrated circuit includes: a cladding layer disposed on a semiconductor substrate; a grating coupler including an optical waveguide on the cladding layer and a grating on the optical waveguide; and at least one reflector formed in the cladding layer below the grating.Type: GrantFiled: January 8, 2010Date of Patent: April 24, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jung-Hyung Pyo, O-Kyun Kwon, Gyung-Ock Kim
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Publication number: 20120093178Abstract: Provided is a wavelength tunable external cavity laser generating device. The wavelength tunable external cavity laser generating devices includes: an optical amplifier, a comb reflector, and an optical signal processor connected in series on a first substrate; and an external wavelength tunable reflector disposed on a second substrate adjacent to the first substrate and connected to the optical amplifier, wherein the comb reflector includes: a waveguide disposed on the first substrate; a first diffraction grating disposed at one end of the waveguide adjacent to the optical amplifier; and a second diffraction grating disposed at the other end of the waveguide adjacent to the optical signal processor, wherein the optical amplifier, the comb reflector, and the optical signal processor constitute a continuous waveguide.Type: ApplicationFiled: January 28, 2011Publication date: April 19, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Soo KIM, Ki-Hong YOON, Kisoo KIM, Byung-Seok CHOI, O-Kyun Kwon
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Patent number: 8149503Abstract: Provided are a semiconductor optical amplifier and an optical signal processing method using the same. The reflective semiconductor optical amplifier includes: an optical signal amplification region operating to allow a downward optical signal incident from the external to obtain a gain; and an optical signal modulation region connected to the optical signal amplification region and generating a modulated optical signal. The downward optical signal is amplified through a cross gain modulation using the modulated optical signal and is outputted as an upward optical signal.Type: GrantFiled: February 6, 2009Date of Patent: April 3, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Hyun Soo Kim, O-Kyun Kwon, Dong Churl Kim, Byung-Seok Choi, Kisoo Kim, Dae Kon Oh
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Patent number: 8044290Abstract: A method and apparatus for reproducing a first part of music data having a plurality of repeated parts includes a method and an apparatus allowing a user to listen to more songs including the repeated parts by searching for a boundary between the first and second parts of the music data having the repeated parts via simple frequency analysis, marking information indicating the found boundary, and reproducing the music data until a part indicated by the marked information is reached. Accordingly, music reproduction satisfaction increases since an inconvenience of manipulating the apparatus for each song is lessened and more songs having different patterns are played.Type: GrantFiled: October 14, 2008Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: O-kyun Kwon, Young-Il Park
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Patent number: 7974326Abstract: Provided are a hybrid laser diode for single mode operation, and a method for manufacturing the hybrid laser diode. The hybrid laser diode includes a silicon layer, an active pattern disposed on the silicon layer, and a bonding layer disposed between the silicon layer and the active pattern. Here, the bonding layer includes diffraction patterns constituting a Bragg grating.Type: GrantFiled: May 9, 2008Date of Patent: July 5, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Young-Ahn Leem, Ki-Soo Kim, Jung-Ho Song, O-Kyun Kwon, Gyung-Ock Kim
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Publication number: 20110150016Abstract: Provided is a tunable laser module emitting an optical signal having high speed, high power and wideband wavelength tuning. The tunable laser module includes a laser array configured to emit an optical signal having a plurality of different lasing wavelengths, a temperature controller configured to change a temperature of the laser array, and an optical integration device configured to modulate or amplify the optical signal at a side of the laser array opposing the temperature controller.Type: ApplicationFiled: December 20, 2010Publication date: June 23, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mi-Ran PARK, O-Kyun KWON, byung-seok CHOI, Dae Kon OH
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Publication number: 20110134513Abstract: Provided is an optical device module that can improve miniaturization and integration. The optical device module includes a semiconductor optical amplifier having a buried structure and including a first active layer buried in a clad layer disposed on a first substrate, an optical modulator in which a sidewall of a second active layer disposed in a direction of the first active layer on a second substrate junctioned to the first substrate is exposed, the optical modulator having a ridge structure, and at least one multi-mode interference coupler in which the second active layer junctioned to the first active layer is buried in the clad layer, the multi-mode interference coupler sharing the second active layer on the second substrate between the optical modulator and the semiconductor optical amplifier and integrated with the second optical device.Type: ApplicationFiled: May 4, 2010Publication date: June 9, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong Churl Kim, Byung-seok Choi, Hyun Soo Kim, Kisoo Kim, O-Kyun Kwon, Dae Kon Oh
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Patent number: 7927988Abstract: Provided is a method of fabricating a semiconductor device. The method includes forming a first layer, a second layer, an ion implantation layer between the first and second layers, and an anti-oxidation layer on the second layer, and performing a heat treating process to form an insulating layer between the first and second layers while preventing loss of the second layer using the anti-oxidation layer.Type: GrantFiled: June 21, 2009Date of Patent: April 19, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: In-Gyoo Kim, O-Kyun Kwon, Dong-Woo Suh, Gyung-Ock Kim
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Publication number: 20110087871Abstract: A method and apparatus for controlling a consumer electronics (CE) device, are provided. The method includes determining, when a touch is sensed, whether the touch corresponds to a booting request, and performing a booting operation when the touch is a booting request; and controlling the CE device to operate in a sleep mode when an operation start signal is not received until the booting operation is completed, and controlling the CE device to operate in a normal mode when an operation start signal is received before the booting operation is completed. The apparatus includes a touch sensing unit; which senses a touch to the CE device; a determining unit which determines whether the touch sensed by the touch sensing unit corresponds to a booting request; a booting unit, and a control unit controlling the CE device.Type: ApplicationFiled: May 19, 2010Publication date: April 14, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: O-kyun KWON, Se-an KWON, Seong-min KANG, Jae-seuk OH
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Publication number: 20100316383Abstract: Provided is a wavelength division multiplexed-passive optical network (WDM-PON) apparatus. The WDM-PON includes an optical source unit, an optical mux, and a chirped Bragg grating. The optical source unit generates an optical signal. The optical mux receives the optical signal from the optical source unit through one end of the optical mux, multiplexes the optical signal, and outputs the multiplexed optical signal. The chirped Bragg grating is connected to the other end of the optical mux. The chirped Bragg grating again reflects the optical signal having passed the optical mux to re-input a certain portion of the optical signal into the optical mux and the optical source unit. The optical mux performs a spectrum slicing on the re-inputted optical signal and operates the optical source unit using a channel wavelength of the optical mux as a main oscillation wavelength.Type: ApplicationFiled: October 20, 2009Publication date: December 16, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Soo KIM, Kisoo Kim, Dong Churl Kim, Byung-Seok Choi, O-Kyun Kwon, Dae Kon Oh