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1. 发明申请

US20190158188A1 OPTICAL SIGNAL TRANSMISSION APPARATUS FOR GENERATING MULTI-LEVEL OPTICAL SIGNAL AND METHOD PERFORMED BY THE SAME 审中-公开
公开(公告)号：US20190158188A1
公开(公告)日：2019-05-23
申请号：US16023187
申请日：2018-06-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Jie Hyun LEE , Sun Hyok CHANG , Joon Young HUH , Sae-Kyoung KANG , Joon Ki LEE
IPC分类号： H04B10/58
摘要： 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.

2. 发明申请

US20150125153A1 METHOD FOR MEASURING WAVELENGTH CHANNEL TUNING TIME OF TUNABLE DEVICE IN OPTICAL NETWORK, AND SYSTEM THEREOF 审中-公开
标题翻译：用于测量光网络中可调谐器件的波长通道调谐时间的方法及其系统
公开(公告)号：US20150125153A1
公开(公告)日：2015-05-07
申请号：US14532369
申请日：2014-11-04
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Jie Hyun LEE , Han Hyub LEE , Eun Gu LEE , Kyeong Hwan DOO
IPC分类号： H04B10/572 , H04J14/02
CPC分类号： H04B10/0793 , H04B10/07957 , H04J14/0282
摘要： A method for measuring a wavelength channel tuning time by using an optical filter that converts a change of an output wavelength of a tunable device into an optical intensity change, and a system thereof. The system for measuring a wavelength channel tuning time includes: an optical filter set configured to convert a wavelength change of an optical tunable device into an optical output intensity change; at least one or more optical electric converters configured to convert the optical output intensity change output by the optical filter set into an electric signal; and a controller configured to generate a wavelength change command applied to the tunable device, so as to calculate a wavelength channel tuning time of the tunable device by using the wavelength change command and the electric signal output by the optical electric converter.
摘要翻译：一种通过使用将可调谐器件的输出波长的变化转换为光强度变化的滤光器来测量波长通道调谐时间的方法及其系统。用于测量波长信道调谐时间的系统包括：光滤波器组，被配置为将光可调谐器件的波长变化转换成光输出强度变化; 至少一个或多个光电转换器，被配置为将由所述滤光器组输出的光输出强度变化转换为电信号; 以及控制器，被配置为产生施加到可调谐器件的波长变化指令，以便通过使用波长改变命令和由光学电转换器输出的电信号来计算可调谐器件的波长通道调谐时间。

3. 发明申请

US20170329087A1 OPTICAL DEMULTIPLEXING DEVICE AND METHOD 审中-公开
公开(公告)号：US20170329087A1
公开(公告)日：2017-11-16
申请号：US15484359
申请日：2017-04-11
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Joon Young HUH , Sae-Kyoung KANG , Joon Ki LEE , Jie Hyun LEE
IPC分类号： G02B6/293 , G02B6/42
CPC分类号： G02B6/29367
摘要： An optical demultiplexing device includes a demultiplexer configured to demultiplex an input light into lights of different wavelength bands, and output the lights of different wavelength bands in a first direction and a second direction, and a detector configured to detect the light output in the first direction and the light output in the second direction.

4. 发明申请

US20160020868A1 TUNABLE OPTICAL NETWORK UNIT FOR MULTI-WAVELENGTH PASSIVE OPTICAL NETWORK SYSTEM AND OPERATING METHOD THEREOF 有权
标题翻译：用于多波长无源光网络系统的可控光网络单元及其操作方法
公开(公告)号：US20160020868A1
公开(公告)日：2016-01-21
申请号：US14694224
申请日：2015-04-23
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Jie Hyun LEE , Heuk PARK , Jyung Chan LEE , Sang Soo LEE
IPC分类号： H04J14/02
CPC分类号： H04J14/0278 , H04B10/272 , H04J14/023 , H04J14/0241
摘要： A tunable optical network unit (ONU) for a multi-wavelength passive optical network (MW PON) system and an operation method thereof are provided. The tunable ONU includes a cyclic tunable filter configured to have cyclic wavelength transmission properties that allow all wavelength channels of both a downstream signal and an upstream signal and to vary a wavelength to pass therethrough; a wavelength splitter configured to split an upstream signal wavelength band and a downstream signal wavelength band; a photodetector element configured to detect a downstream signal that is transmitted through the wavelength splitter, passing through the cyclic tunable filter which is aligned to a specific downstream signal wavelength channel; and a tunable transmitter configured to output to the wavelength transmitter an upstream signal of a wavelength channel that is determined based on an aligned downstream signal wavelength channel of the cyclic tunable filter.
摘要翻译：提供了一种用于多波长无源光网络（MW PON）系统的可调谐光网络单元（ONU）及其操作方法。可调谐ONU包括循环可调滤波器，其被配置为具有允许下行信号和上行信号的所有波长信道并且使波长变化通过的循环波长传输特性; 波长分离器，被配置为分离上游信号波长带和下游信号波长带; 光检测器元件，被配置为检测通过波长分离器传输的下行信号，通过与特定下行信号波长信道对准的循环可调滤波器; 以及可调谐发射器，被配置为向所述波长发射器输出基于所述循环可调滤波器的对准的下行信号波长信道确定的波长信道的上行信号。

5. 发明申请

US20190103921A1 OPTICAL RECEIVER WITH OPTICAL DEMULTIPLEXER 审中-公开
公开(公告)号：US20190103921A1
公开(公告)日：2019-04-04
申请号：US16023145
申请日：2018-06-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Sae-Kyoung KANG , Joon Young HUH , Joon Ki LEE , Jie Hyun LEE
IPC分类号： H04B10/69 , H04J14/02
CPC分类号： H04B10/691 , H04B10/675 , H04B10/693 , H04J14/02
摘要： An optical receiver includes: an optical demultiplexer to demultiplex an optical signal in which a plurality of wavelengths is multiplexed and divide the optical signal into optical signals corresponding to the plurality of wavelengths, respectively; a reflector to change a progress direction of the divided optical signals; an optical coupling lens including, in an array form, light transmission lenses through which the divided optical signals are transmitted, respectively; a plurality of photodetectors to mount on a photodiode (PD) substrate provided on the optical coupling lens, receive the divided optical signals that are transmitted through the light transmission lenses of the optical coupling lens, respectively, and convert the received optical signals to electrical signals; and a plurality of trans impedance amplifiers provided at desired intervals to electrically connect to the plurality of photodetectors through wire bonding and amplify the received plurality of electrical signals to be a desired magnitude.

6. 发明申请

US20180120507A1 DEVICE AND METHOD FOR DETECTING OPTICAL SIGNAL 审中-公开
公开(公告)号：US20180120507A1
公开(公告)日：2018-05-03
申请号：US15792276
申请日：2017-10-24
申请人： Electronics and Telecommunications Research Institute
发明人： Sae-Kyoung KANG , Joon Ki LEE , Jie Hyun LEE , Joon Young HUH
IPC分类号： G02B6/293 , G02B6/42 , H04B10/67
CPC分类号： G02B6/2938 , G02B6/4214 , G02B6/4215 , G02B6/4224 , G02B6/4249 , H04B10/67
摘要： Provided is a device and method for detecting an optical signal. The optical signal detecting device may include an optical de-multiplexer configured to de-multiplex an input optical signal to optical signals of different wavelengths; an optical coupling lens configured to allow the optical signals of different wavelengths to be incident; an optical signal reflector configured to reflect the optical signals of different wavelengths emitted from the optical couple lens; and an optical detector configured to detect the reflected optical signals of different wavelengths.

7. 发明申请

US20170373783A1 APPARATUS AND METHOD FOR DETECTING OPTICAL SIGNAL 审中-公开
公开(公告)号：US20170373783A1
公开(公告)日：2017-12-28
申请号：US15625430
申请日：2017-06-16
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Sae-Kyoung KANG , Joon Young HUH , Joon Ki LEE , Jie Hyun LEE
IPC分类号： H04J14/02 , H04B10/27 , G02B27/14 , H04B10/572 , G02B27/10
CPC分类号： H04J14/02 , G02B27/1006 , G02B27/14 , G02B27/141 , H04B10/27 , H04B10/572
摘要： An optical signal detecting apparatus and method. The optical signal detecting apparatus includes an optical demultiplexer configured to demultiplex an input optical signal into a first optical signal having a first band wavelength and a second optical signal having a second band wavelength, a first optical detector configured to detect the first optical signal, and a second optical detector configured to detect the second optical signal, and the optical demultiplexer, the first optical detector, and the second optical detector may be provided in a TO-CAN package.

8. 发明申请

US20140003818A1 EXTERNAL CAVITY LASER USING MULTILAYERED THIN FILM FILTER AND OPTICAL TRANSMITTER HAVING THE SAME 审中-公开
标题翻译：使用多层薄膜过滤器的外部空腔激光器及具有该薄膜滤光片的光学发射器
公开(公告)号：US20140003818A1
公开(公告)日：2014-01-02
申请号：US13928570
申请日：2013-06-27
申请人： Electronics and Telecommunications Research Institute
发明人： Jie Hyun LEE , Seung Hyun CHO , Seung Il MYONG , Sang Soo LEE
IPC分类号： H04B10/50
CPC分类号： H04B10/503 , H01S5/02284 , H01S5/02415 , H01S5/141
摘要： Provided is an external cavity laser using a multilayered thin film filter and an optical transmitter having the same. The external cavity laser may include a semiconductor laser diode to output an optical signal, a lens to cause the optical signal output from the semiconductor laser diode to converge, a multilayered thin film filter to receive the optical signal passed through the lens and to pass the optical signal in a bandpass wavelength range, and a partial reflector to transmit the optical signal transmitted through the multilayered thin film filter to an optical fiber.
摘要翻译：提供了使用多层薄膜滤光器的外腔激光器和具有该外腔激光器的光发射器。外腔激光器可以包括用于输出光信号的半导体激光二极管，用于使来自半导体激光二极管的光信号输出会聚的透镜，多层薄膜滤光器以接收通过透镜的光信号并使光信号在带通波长范围内，以及部分反射器将透过多层薄膜滤光片的光信号传输到光纤。

9. 发明申请

US20130170837A1 CONVERGED PON FOR TDMA-PON SERVICE BASED ON OFDMA-PON 有权
标题翻译：用于基于OFDMA-PON的TDMA-PON业务的转换PON
公开(公告)号：US20130170837A1
公开(公告)日：2013-07-04
申请号：US13729638
申请日：2012-12-28
申请人： Electronics and Telecommunications Research Institute
发明人： Kwang Ok KIM , Seung-Hyun CHO , Jie Hyun LEE , Seung Il MYONG , Sang Soo LEE , Jong Hyun LEE
IPC分类号： H04J14/08
CPC分类号： H04J14/08 , H04Q11/0005 , H04Q2011/0064
摘要： A converged passive optical network (CPON) and a data transmission method are disclosed. The CPON is a combination of a time division multiple access-passive optical network (TDMA-PON) and an orthogonal frequency division multiple access-passive optical network (OFDMA-PON) and is able to dynamically controlling a bandwidth for upstream signal transmission through allocation of multiple subcarriers to each single optical network unit (ONU).
摘要翻译：公开了一种融合无源光网络（CPON）和数据传输方法。 CPON是时分多址无源光网络（TDMA-PON）和正交频分多址无源光网络（OFDMA-PON）的组合，能够通过分配动态地控制上行信号传输的带宽的多个子载波到每个单个光网络单元（ONU）。

10. 发明申请

US20130170830A1 SIGNAL TRANSMISSION APPARATUS AND OPTICAL MODEM MODULATION METHOD 有权
标题翻译：信号传输装置和光学调制解调器调制方法
公开(公告)号：US20130170830A1
公开(公告)日：2013-07-04
申请号：US13729521
申请日：2012-12-28
申请人： Electronics and Telecommunications Research Institute
发明人： Seung Hyun CHO , Jie Hyun LEE , Kwang Ok KIM , Eui Suk JUNG , Seung Il MYONG , Sang Soo LEE , Jong Hyun LEE
IPC分类号： H04B10/27
CPC分类号： H04B10/27 , H04B10/272 , H04B10/564 , H04B17/103 , H04B17/15
摘要： A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the photo detector measuring and determining characteristics of the optical link using the reflected light, and the optical modem determining a power level and a modulation method for each subcarrier based on the characteristics of the optical link.
摘要翻译：公开了一种光调制解调器的调制方法和执行该方法的信号传输装置。光调制解调器的调制方法包括向光源提供信号的光接口，当基于提供的信号的来自光源的输出光被光链路反射时，光接收器接收由光链路反射的光的光检测器，照片检测器使用反射光测量和确定光链路的特性，并且光调制解调器基于光链路的特性确定每个子载波的功率电平和调制方法。

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