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公开(公告)号：US11409047B2
公开(公告)日：2022-08-09
申请号：US17094465
申请日：2020-11-10
Inventor： Sanghwa Yoo , Sae-Kyoung Kang , Heuk Park , Joon Young Huh , Jongtae Song , Joon Ki Lee
Abstract: An optical coupling method and apparatus are disclosed. The optical coupling method improve the speed of optical alignment between an optical fiber and a grating coupler (GC) of an optical coupling apparatus for a characteristic test of a silicon photonic integrated circuit (Si-PIC) chip by using a reflective grating couplers disposed on the Si-PIC chip.
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公开(公告)号：US10523333B2
公开(公告)日：2019-12-31
申请号：US16023187
申请日：2018-06-29
Inventor： Jie Hyun Lee , Sun Hyok Chang , Joon Young Huh , Sae-Kyoung Kang , Joon Ki Lee
Abstract: An optical signal transmission apparatus generates a multi-level optical signal from a multi-level electric signal. The optical signal transmission apparatus detects, based on a supervisory signal generated from an optical signal, an electric-to-optical (E/O) conversion characteristic of an E/O converter configured to convert an electric signal into an optical signal. For example, when the E/O converter generates a multi-level optical signal from a multi-level electric signal based on a bias signal, the optical signal transmission apparatus determines a correspondence relationship between the bias signal and the optical signal. The optical signal transmission apparatus adjusts a use range of intensities of the bias signal based on the determined correspondence relationship so that the E/O converter may linearly operate.
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Patent Agency Ranking
公开(公告)号：US10516487B1
公开(公告)日：2019-12-24
申请号：US16207557
申请日：2018-12-03
Inventor： Sae-Kyoung Kang , Joon Young Huh , Joon Ki Lee
IPC: H04B10/516 , G02B6/42
Abstract: An optical transmitting module includes: light sources configured to output optical signals, an optical multiplexer configured to multiplex the optical signals output from the light sources, a collimating lens configured to convert an optical signal output from the optical multiplexer to a form of parallel beam, a package inside which the light sources, the optical multiplexer, and the collimating lens are provided, and an optical isolator disposed on one inner surface of the package, in which the optical signals output from the light sources are multiplexed into a single optical signal through the optical multiplexer disposed inside the package, and the single optical signal passes through the collimating lens and is then optically coupled to an optical fiber stub in a receptacle through a focusing lens disposed outside the package to be output externally.
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公开(公告)号：US10511400B2
公开(公告)日：2019-12-17
申请号：US16124766
申请日：2018-09-07
Inventor： Joon Young Huh , Sae-Kyoung Kang , Joon Ki Lee
Abstract: An optical multiplexer including an optical waveguide block including a plurality of waveguides for adjusting an optical path of the plurality of optical signals. Optical signals generated in light sources having different wavelengths are input to ports of one side that is an input end of the optical waveguide block, propagated through waveguides connected to the ports, and output to ports of another side that is an output end of the optical wavelength block. Intervals between the waveguides decrease in a direction from the input end to the output end. Intervals between the ports of the input end are smaller than intervals between the ports of the output end. The optical waveguide block has a structure in which at least one layer having at least one waveguide is laminated.
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35.发明授权公开(公告)号：US10432341B2
公开(公告)日：2019-10-01
申请号：US16033330
申请日：2018-07-12
Inventor： Sae Kyoung Kang , Joon Ki Lee , Joon Young Huh
IPC: H04B10/077 , H04B11/00 , H04J14/02 , H04Q11/00
Abstract: A transmitter for transmitting an optical signal in an optical communication system includes a plurality of light sources configured to output optical signals; a plurality of first optical couplers configured to multiplex the optical signals, which are output from the plurality of light sources, to generate a first optical signal, and output the first optical signal through a first output port and a second output port of each of the plurality of first optical couplers; a first monitoring unit configured to monitor the first optical signal which is output through the second output port of each of the plurality of first optical couplers; and a controller configured to control an optical output of each of the plurality of light sources on the basis of a result of the monitoring.
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公开(公告)号：US09804346B2
公开(公告)日：2017-10-31
申请号：US15010657
申请日：2016-01-29
Inventor： Sae Kyoung Kang , Joon Ki Lee , Joon Young Huh , Jie Hyun Lee
CPC classification number: G02B6/4206 , G02B6/29365 , G02B6/2938 , G02B6/32 , G02B6/4208 , G02B6/421 , G02B6/4215 , G02B6/4244 , G02B6/4249 , G02B6/4265 , G02B6/4292
Abstract: A receptacle-collimator assembly and a multi-wavelength optical receiver module. The receptacle-collimator assembly includes a receptacle configured to receive a wavelength-multiplexed optical signal; and a collimator integrated with the receptacle and configured to generate a collimated beam signal from a multi-wavelength optical signal received from the receptacle and output the beam signal.
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公开(公告)号：US09360641B2
公开(公告)日：2016-06-07
申请号：US14467283
申请日：2014-08-25
Inventor： Joon Ki Lee , Sae-Kyoung Kang , Joon Young Huh
IPC: G02B6/42
CPC classification number: G02B6/4274 , G02B6/4204 , G02B6/4249
Abstract: A multi-wavelength optical signal receiving apparatus receives a multi-wavelength optical signal, demultiplexes the received optical signal to convert into an electric signal. The multi-wavelength optical signal receiving apparatus includes a demultiplexing part including a demultiplexer configured to divide the received multi-wavelength optical signal into a plurality of optical signals by wavelength, a photoelectric conversion part to convert the optical signals into electric signals and amplify the electric signals, and at least one lower securing plate configured to couple the parts by an active alignment method. Accordingly, an additional polishing or coating process is not required, which simplifies the manufacturing process, and it is possible to manufacture the apparatus in blocks, thereby increasing mass-productivity.
Abstract translation: 多波长光信号接收装置接收多波长光信号，将接收的光信号解复用以转换为电信号。 多波长光信号接收装置包括：解复用部，包括：分离器，被配置为通过波长将接收的多波长光信号分割成多个光信号;光电转换部，将光信号转换成电信号，并放大电 信号，以及至少一个下固定板，其配置成通过主动对准方法来连接所述部件。 因此，不需要额外的抛光或涂布工艺，这简化了制造工艺，并且可以以块为单位制造装置，从而提高了批量生产率。
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