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1.发明授权Resonator, variable wavelength optical filter, and variable wavelength laser diode 有权谐振器，可变波长光滤波器和可变波长激光二极管公开(公告)号：US09008134B2
公开(公告)日：2015-04-14
申请号：US14020928
申请日：2013-09-09
Inventor： Kwang Ryong Oh
CPC classification number: G02B6/10 , G01J3/10 , G01J3/26 , G02B6/29358 , H01S5/0287 , H01S5/06 , H01S5/101 , H01S5/142
Abstract: A variable wavelength diode according to the inventive concept includes a resonator and a plurality of cylindrical lenses. The resonator includes slab waveguides of which resonance lengths are different from each other. The slab waveguides are disposed on a planar light wave circuit (PLC). Thus, the variable wavelength diode realizes a high variation speed and a continuous variation of a beam at the same time.
Abstract translation: 根据本发明构思的可变波长二极管包括谐振器和多个柱面透镜。 谐振器包括共振长度彼此不同的平板波导。 平板波导设置在平面光波电路（PLC）上。 因此，可变波长二极管同时实现高变化速度和波束的连续变化。
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公开(公告)号：US10211596B2
公开(公告)日：2019-02-19
申请号：US15248763
申请日：2016-08-26
Inventor： Kwang Ryong Oh
Abstract: Disclosed is an optical sensor, including an external cavity laser configured to output sensing light and reference light; and a photodetector configured to detect a beating signal by an interference of the sensing light and the reference light output from the external cavity laser, in which the external cavity laser includes a reflecting filter including a sensing grating, to which a sensing object is attachable, and a reference grating, which is disposed on the same plane as that of the sensing grating, and outputs sensing light reflected from the sensing grating and reference light reflected from the reference grating. Accordingly, the optical sensor does not require a high-resolution spectroscope and has improved resolution and sensitivity.
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公开(公告)号：US10018786B2
公开(公告)日：2018-07-10
申请号：US15228014
申请日：2016-08-04
Inventor： Kwang Ryong Oh , Hong-Seung Kim
IPC: H01P7/00 , G02B6/293 , G01D5/353 , G02B6/124 , G02B6/136 , G02B6/32 , H01S5/10 , H01S5/30 , G02B6/12
CPC classification number: G02B6/29341 , G01D5/35319 , G02B6/12007 , G02B6/124 , G02B6/136 , G02B6/32 , G02B2006/12097 , G02B2006/12104 , G02B2006/12138 , H01S5/0028 , H01S5/026 , H01S5/1075 , H01S5/125 , H01S5/22 , H01S5/3013 , H01S5/4012 , H01S5/4031 , H01S5/4068
Abstract: There is provided a semi-circular resonator using a whispering gallery mode (WGM) and an optical sensor using the same. Accordingly, an active region that is a waveguide of an active layer in which laser oscillation is caused by gains of advancing beams is deeply etched in a semi-circular or semi-ring shape.
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公开(公告)号：US09348195B2
公开(公告)日：2016-05-24
申请号：US14951311
申请日：2015-11-24
Inventor： Oh Kee Kwon , Kwang Ryong Oh , minhyup Song , Chul-Wook Lee , Jang Uk Shin , Young-Tak Han
CPC classification number: G02F1/3532 , G02F1/365 , G02F1/383 , G02F2001/354 , G02F2203/56
Abstract: A method of operating a wavelength swept source apparatus includes generating a single mode light, and generating a basic optical comb including light rays having identical frequency differences with adjacent light rays by modulating the generated single mode light. The method further includes generating other optical combs that include the same number of light rays as that of light rays of the optical comb that has a frequency band different from that of the basic optical comb, and is distributed in a frequency band wider than that in which the basic optical comb is distributed, by modulating the light rays of the basic optical comb. The light rays of the basic optical comb and the light rays included in the other optical combs are sequentially emitted according to frequencies of the light rays of the basic optical comb and the light rays included in the other optical combs.
Abstract translation: 操作波长扫描源装置的方法包括：生成单模光，并通过调制所生成的单模光，产生包括具有与相邻光线相同频率差的光的基本光梳。 该方法还包括生成包括与具有与基本光梳的频带不同的频带的光梳的光线相同数量的光束的其他光梳，并且分布在比 通过调制基本光梳的光线，分配基本光梳。 基本光梳的光线和包含在其他光梳中的光线根据基本光梳的光线和包含在其他光梳中的光线的频率依次发射。
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