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公开(公告)号：US20160020575A1
公开(公告)日：2016-01-21
申请号：US14802431
申请日：2015-07-17
Inventor： Byung Seok CHOI , Ki Hong YOON
CPC classification number: H01S5/02438 , H01S5/02248 , H01S5/02415 , H01S5/06804 , H01S5/141 , H04B10/00 , H04J14/0282
Abstract: Provided herein is an external-cavity type wavelength tunable laser including gain medium configured to generate an optical signal and amplify the generated optical signal based on a bias current applied; an external reflector configured to be coupled optically with the gain medium; a second thermistor provided on the side of the gain medium and configured to measure a temperature of the gain medium; a first thermistor provided on the external reflector and configured to measure a temperature of the external reflector; and a thermoelectric cooler configured to transfer generated heat based on the temperatures measured by the first and second thermistors.
Abstract translation: 本文提供了一种外腔型波长可调激光器，其包括被配置为产生光信号并且基于所施加的偏置电流来放大产生的光信号的增益介质; 外部反射器，被配置为与增益介质光学耦合; 设置在所述增益介质侧并且被配置为测量所述增益介质的温度的第二热敏电阻; 第一热敏电阻，其设置在所述外部反射器上并且被配置为测量所述外部反射器的温度; 以及热电冷却器，其被配置为基于由所述第一和第二热敏电阻测量的温度传递产生的热量。
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Patent Agency Ranking
2.发明公开公开(公告)号：US20230361884A1
公开(公告)日：2023-11-09
申请号：US18312995
申请日：2023-05-05
Inventor： Minchul KIM , Chun Ju YOUN , Kap-Joong KIM , Kyoungchun LIM , Byung Seok CHOI , Joong-Seon CHOE
Abstract: Provided are a beam tracking module, a free-space quantum communication device, and a free-space optical communication device. The beam tracking module for free-space quantum communication includes a controller configured to determine a divergence angle of a reference beam on the basis of divergence angle control data, a beam path control optical part configured to output the reference beam, and a beam transmitter configured to adjust the divergence angle through the beam path control optical part so that the reference beam having the determined divergence angle is output.
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公开(公告)号：US20160049769A1
公开(公告)日：2016-02-18
申请号：US14548780
申请日：2014-11-20
Inventor： Byung Seok CHOI
IPC: H01S5/14
CPC classification number: H01S5/141 , H01S3/10053 , H01S3/106 , H01S5/0612 , H01S5/0617
Abstract: Provided herein is a method and apparatus for implementing a tunable light source, the method including performing a first calibration of obtaining a tuning curve representing changes of a wavelength as a function of a heater power up to a wavelength range where the external cavity type tunable light source is tunable; performing a second calibration of obtaining a detuning curve of the tunable wavelength range; and setting a wavelength by performing a wavelength locking.
Abstract translation: 本文提供了一种用于实现可调光源的方法和装置，该方法包括执行第一校准，以获得表示波长变化作为加热器功率的函数的调谐曲线，直到波长范围为外腔型可调光 来源可调; 执行获得可调波长范围的失谐曲线的第二校准; 并通过执行波长锁定来设置波长。
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公开(公告)号：US20170168371A1
公开(公告)日：2017-06-15
申请号：US15193889
申请日：2016-06-27
Inventor： Duk Jun KIM , Young Ho KO , Dong Young KIM , Won Seok HAN , Yong Hwan KWON , Jong Hoi KIM , Byung Seok CHOI
CPC classification number: G02F1/2257 , G02F2001/212
Abstract: There is provided a method for manufacturing a Mach-Zehnder electrooptic modulator including forming an intrinsic semiconductor layer including a Group III-V compound semiconductor on a Group III-V compound semiconductor substrate having an active region and a passive region, doping a first impurity in the intrinsic semiconductor layer corresponding to the active region to form a core layer disposed on the substrate and undoped with the first impurity and an upper clad layer disposed on the core layer and including a region doped with the first impurity, and patterning the core layer and the upper clad layer.
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公开(公告)号：US20150288143A1
公开(公告)日：2015-10-08
申请号：US14676260
申请日：2015-04-01
Inventor： Byung Seok CHOI , O Kyun KWON , Ki Soo KIM , Jong Sool JEONG , Su Hwan OH , Ki Hong YOON
CPC classification number: H01S5/141 , H01S3/1055 , H01S3/106 , H01S5/02284 , H01S5/0618 , H01S5/06226 , H01S5/1221
Abstract: Provided herein is a tunable external cavity laser comprising: a gain medium configured to create an optical signal; an external reflector configured to be coupled to the gain medium, and to comprise a Bragg grating; and a phase control section configured to adjust a phase of an entire laser, but to adjust a wavelength of the laser to a longer wavelength than a peak reflectivity of the external reflector.
Abstract translation: 本文提供了一种可调谐外腔激光器，包括：增益介质，其被配置为产生光信号; 外部反射器，被配置为耦合到所述增益介质，并且包括布拉格光栅; 以及相位控制部，被配置为调整整个激光器的相位，但是将激光器的波长调整到比外部反射器的峰值反射率更长的波长。
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6.发明申请METHOD AND APPARATUS FOR SELECTING WAVELENGTH BY WAVELENGTH TUNABLE OPTICAL RECEIVER 有权通过波长可调光接收器选择波长的方法和装置公开(公告)号：US20150236797A1
公开(公告)日：2015-08-20
申请号：US14619124
申请日：2015-02-11
Inventor： Jong Sool JEONG , Dong Hun LEE , Mi Ran PARK , Byung Seok CHOI , Hyun Soo KIM , O Kyun KWON
CPC classification number: H04Q11/0005 , H04B10/675 , H04B2210/075 , H04J14/0276 , H04Q2011/0009 , H04Q2011/0018
Abstract: Disclosed are a method and an apparatus for selecting a wavelength by a wavelength tunable optical receiver. The method of selecting a wavelength of a wavelength tunable optical receiver includes: receiving, by the wavelength tunable optical receiver, an optical signal from a wavelength tunable optical transmitter; filtering, by the wavelength tunable optical receiver, the optical signal through a low frequency band electrical signal filter, and obtaining a low frequency signal; determining, by the wavelength tunable optical receiver, whether the low frequency signal is a valid signal based on a current value of the low frequency signal; and when the low frequency signal is the valid signal, obtaining, by the wavelength tunable optical receiver, an enable condition of a wavelength tunable optical filter through which the low frequency signal is selected, in which the low frequency signal includes a control/monitoring signal.
Abstract translation: 公开了一种通过波长可调光学接收器选择波长的方法和装置。 选择波长可调光学接收机的波长的方法包括：由波长可调光学接收机接收来自波长可调光发射机的光信号; 通过波长可调光接收器对光信号进行滤波，通过低频带电信号滤波器获得低频信号; 基于所述低频信号的当前值，由所述波长可调光学接收器确定所述低频信号是否为有效信号; 并且当低频信号是有效信号时，由波长可调光学接收器获得选择低频信号的波长可调光滤波器的使能条件，其中低频信号包括控制/监视信号 。
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