公开(公告)号：US20190165867A1

公开(公告)日：2019-05-30

申请号：US16014166

申请日：2018-06-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Hyok CHANG ,  Hun Sik KANG ,  Joon Ki LEE ,  Jie Hyun LEE

IPC: H04B10/61 ,  H04B10/40 ,  H04B10/524 ,  H04B10/2507 ,  H04B10/27 ,  H04B10/516 ,  H04B10/564 ,  H04L1/00

Abstract: An optical receiver and a method of controlling the optical receiver. The method may include setting, by a controller, a dispersion value of a dispersion compensator to compensate for a dispersion of an optical signal received through an optical fiber, compensating, by the dispersion compensator, for the dispersion of the optical signal based on the set dispersion value, performing, by the controller, an error correction with respect to the optical signal of which the dispersion is compensated and verifying a number of bit errors, and resetting, by the controller, the dispersion value of the dispersion compensator based on the verified number of bit errors.

公开(公告)号：US20170082808A1

公开(公告)日：2017-03-23

申请号：US15010657

申请日：2016-01-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sae Kyoung KANG ,  Joon Ki LEE ,  Joon Young HUH ,  Jie Hyun LEE

IPC: G02B6/42 ,  G02B6/293 ,  G02B6/32

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.

公开(公告)号：US20150326321A1

公开(公告)日：2015-11-12

申请号：US14698025

申请日：2015-04-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Hyun CHO ,  Kyeong Hwan DOO ,  Hun Sik KANG ,  Jie Hyun LEE

IPC: H04B10/556 ,  H04L27/26

CPC classification number: H04B10/556 ,  H04B10/272 ,  H04B10/548 ,  H04L27/2626 ,  H04L27/2627

Abstract: Provided is an optical transmission apparatus and method for uplink transmission in an orthogonal frequency division multiple access-passive optical network (OFDMA-PON), wherein the optical transmission apparatus includes a digital signal processor to output a baseband orthogonal frequency division multiplexing (OFDM) signal, a tone generator to generate a dithering tone, a synthesizer to synthesize the dithering tone and the baseband OFDM signal, and an optical source to output an output light in which a spectrum width is increased to be greater than a spectrum width of a carrier light based on the baseband OFMD signal synthesized with the dithering tone.

Abstract translation: 提供了一种在正交频分多址无源光网络（OFDMA-PON）中的上行链路传输的光传输装置和方法，其中光传输装置包括数字信号处理器，用于输出基带正交频分复用（OFDM）信号 ，产生抖动音的乐音发生器，用于合成抖动音的合成器和基带OFDM信号;以及光源，用于将频谱宽度增加的输出光输出为大于载波的频谱宽度 基于用抖动音合成的基带OFMD信号。

公开(公告)号：US20140044436A1

公开(公告)日：2014-02-13

申请号：US13962292

申请日：2013-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jie Hyun LEE ,  Seung Hyun CHO ,  Kyeong Hwan DOO ,  Seung Il MYONG

IPC: H04B10/40

CPC classification number: H04B10/40 ,  H01S3/08059 ,  H01S5/02284 ,  H01S5/028 ,  H01S5/141

Abstract: An optical transmitter and an optical transceiver including the same are provided. The optical transmitter may include a semiconductor laser diode to output optical signals, a multilayer thin film filter to receive the optical signals and pass optical signals corresponding to a transmission wavelength band, and a concave lens to collect the optical signals passed through the multilayer thin film filter.

Abstract translation: 提供了一种光发射机和包括其的光收发器。 光发射机可以包括用于输出光信号的半导体激光二极管，用于接收光信号并通过对应于透射波段的光信号的多层薄膜滤光器和用于收集通过多层薄膜的光信号的凹透镜 过滤。

公开(公告)号：US20130170834A1

公开(公告)日：2013-07-04

申请号：US13728089

申请日：2012-12-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Hyun CHO ,  Jie Hyun LEE ,  Seung Il MYONG ,  Sang Soo LEE ,  Jong Hyun LEE ,  Eui Suk JUNG ,  Kwang Ok KIM

IPC: H04J14/02

CPC classification number: H04J14/0278 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04J2014/0253

Abstract: Provided is a hybrid passive optical network (PON) system. The hybrid PON system of wavelength division multiplexing (WDM)/time division multiplexing (TDM) may include an optical line terminal (OLT) and an optical network unit (ONU). The OLT and the ONU may transmit a signal based on wavelength reuse using a seed light source and a reflective modulator. The light source may include a seed light source having a single wavelength, two seed light sources having different wavelength bands, and a light source having a wavelength tunable characteristic.

Abstract translation: 提供了一种混合无源光网络（PON）系统。 波分复用（WDM）/时分复用（TDM）的混合PON系统可以包括光线路终端（OLT）和光网络单元（ONU）。 OLT和ONU可以使用种子光源和反射调制器来发射基于波长重用的信号。 光源可以包括具有单个波长的种子光源，具有不同波长带的两个种子光源和具有波长可调特性的光源。