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1.发明专利
公开(公告)号：JP2005031623A
公开(公告)日：2005-02-03
申请号：JP2003435911
申请日：2003-12-26
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM KANG HO , OH KWANG RYONG , KWON OH KEE , KIM JONG HOI , KIM HYEONG-SOO
Abstract: PROBLEM TO BE SOLVED: To provide an optical element with an integrated light deflector with which a light direction is deflected without requiring a complicated external driving circuit. SOLUTION: A manual waveguide having the light deflector integrated therewith is equipped with cladding regions 301, 304, an optical waveguide core 302 and the light deflector 303. A propagation direction of light waveguided to the optical waveguide core 302 is varied in passing of the light through the light deflector 303. The light deflector 303 is formed by patterning a part of the upper cladding layer on the upper side of a specified region of the optical waveguide core 302 in a predetermined shape and deflects the propagation direction of the advancing light by modifying the refractive index of the core 302 on the lower side of the predetermined shape in accordance with a current or an electric field applied to the light deflector 303. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2003198056A
公开(公告)日：2003-07-11
申请号：JP2002188775
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： OH KWANG RYONG , LEE MYUNG LAE , KIM HYUN SOO , SONG JUNG HO , KIM KANG HO
Abstract: PROBLEM TO BE SOLVED: To provide a variable wavelength external resonator which can vary the wavelength by an electric signal, can successively very a wavelength at high speed, and uses a light deflector stably operating according to the electric signal. SOLUTION: A light beam emitted from a light source 301 is transformed to a parallel light beam by a lens 302a. The parallel light beam is diffracted on a diffraction grating 304, and is propagated through a light deflector 308 arranged between a reflecting mirror 305 and the diffraction grating 304. The light deflector 308 is configured so that an index of refraction can vary according to an input electric signal. Of light beams propagating through the light deflector 308, only a light beam with a specific wavelength is emitted perpendicularly to the reflecting mirror 305. Thus, the light beam with the specific wavelength is refocused on the light source 301. COPYRIGHT: (C)2003,JPO
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公开(公告)号：CA2391796C
公开(公告)日：2007-04-03
申请号：CA2391796
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM KANG HO , SONG JUNG HO , KIM HYUN SOO , OH KWANG RYONG , LEE MYUNG LAE
Abstract: The present invention relates to an optical deflector driven by an electrical signal, and a wavelength unable external resonator using the same . The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode extern al resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffractin g grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector, so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.
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公开(公告)号：CA2391796A1
公开(公告)日：2003-06-15
申请号：CA2391796
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： SONG JUNG HO , KIM KANG HO , LEE MYUNG LAE , OH KWANG RYONG , KIM HYUN SOO
Abstract: The present invention relates to an optical deflector driven by an electrical signal, and a wavelength unable external resonator using the same . The optical deflector of a triangle shape; capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode extern al resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffractin g grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector; so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.
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公开(公告)号：AT477511T
公开(公告)日：2010-08-15
申请号：AT05105552
申请日：2005-06-22
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KWON OH KEE , KIM KANG HO , KIM JONG HOI , KIM HYUN SOO , OH KWANG RYONG
Abstract: Provided are a tunable demultiplexer and a tunable laser, having an optical deflector (140) in which a refractive index of a core layer of a deflection pattern region having a predetermined shape varies in response to an external electrical signal so that the optical deflector deflects incident light in the radial direction.
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Patent Agency Ranking
公开(公告)号：FR2833768B1
公开(公告)日：2006-10-20
申请号：FR0208065
申请日：2002-06-28
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： OH KWANG RYONG , LEE MYUNG LAE , KIM HYUN SOO , SONG JUNG HO , KIM KANG HO
Abstract: The present invention relates to an optical deflector driven by an electrical signal, and a wavelength tunable external resonator using the same. The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode external resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffracting grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector, so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.
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公开(公告)号：FR2833768A1
公开(公告)日：2003-06-20
申请号：FR0208065
申请日：2002-06-28
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： OH KWANG RYONG , LEE MYUNG LAE , KIM HYUN SOO , SONG JUNG HO , KIM KANG HO
Abstract: The present invention relates to an optical deflector driven by an electrical signal, and a wavelength tunable external resonator using the same. The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode external resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffracting grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector, so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.
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公开(公告)号：DE602005022818D1
公开(公告)日：2010-09-23
申请号：DE602005022818
申请日：2005-06-22
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KWON OH KEE , KIM KANG HO , KIM JONG HOI , KIM HYUN SOO , OH KWANG RYONG
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公开(公告)号：DE602007002852D1
公开(公告)日：2009-12-03
申请号：DE602007002852
申请日：2007-07-05
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KWON OH KEE , KIM JONGHOI , OH KWANG RYONG
Abstract: Provided is a long cavity single-mode laser diode in which a ring waveguide is integrated such as a conventional array waveguide (AWG)-based laser or a concave grating (CG)-based laser.
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公开(公告)号：KR100759820B1
公开(公告)日：2007-09-18
申请号：KR20060067092
申请日：2006-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KWON OH KEE , KIM JONG HOI , OH KWANG RYONG
IPC: H01S3/00
CPC classification number: H01S5/50 , G02B6/12007 , G02B6/12019 , G02B6/29326 , G02B6/29328 , H01S5/005 , H01S5/0268 , H01S5/0654 , H01S5/1003 , H01S5/1071 , H01S5/4087 , H01S5/5045
Abstract: A long cavity single mode laser diode is provided to improve the stability of axis directional single mode and yield of device by amplifying and transmitting a beam having a specific wavelength by adjusting a current of an optical amplifier placed in a ring waveguide. A long cavity single mode laser diode includes a first optical amplifier, an array waveguide diffraction grating, a wavelength selecting SOA array, and a ring waveguide. The first optical amplifier amplifies beam and outputs the beam. The array waveguide diffraction grating separates the beam into a plurality of wavelengths according to an arrayed waveguide. The wavelength selecting SOA array amplifies the light of each separated wavelength. The ring waveguide is connected to the first optical amplifier to form a feedback loop. The ring waveguide includes a second optical amplifier inside the feedback loop.
Abstract translation: 提供长腔单模激光二极管，通过调节放置在环形波导中的光放大器的电流，通过放大和发射具有特定波长的光束来提高轴向单模的稳定性和成品率。 长腔单模激光二极管包括第一光放大器，阵列波导衍射光栅，波长选择SOA阵列和环形波导。 第一光放大器放大光束并输出光束。 阵列波导衍射光栅根据阵列波导将光束分离成多个波长。 波长选择SOA阵列放大每个分离波长的光。 环形波导连接到第一光学放大器以形成反馈回路。 环形波导包括反馈回路内的第二光放大器。
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