公开(公告)号：US20140003818A1

公开(公告)日：2014-01-02

申请号：US13928570

申请日：2013-06-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jie Hyun LEE ,  Seung Hyun CHO ,  Seung Il MYONG ,  Sang Soo LEE

IPC: H04B10/50

CPC classification number: H04B10/503 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/141

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130170837A1

公开(公告)日：2013-07-04

申请号：US13729638

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04J14/08

CPC classification number: H04J14/08 ,  H04Q11/0005 ,  H04Q2011/0064

Abstract: 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).

Abstract translation: 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）。

公开(公告)号：US20130170830A1

公开(公告)日：2013-07-04

申请号：US13729521

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04B10/27

CPC classification number: H04B10/27 ,  H04B10/272 ,  H04B10/564 ,  H04B17/103 ,  H04B17/15

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130170375A1

公开(公告)日：2013-07-04

申请号：US13729582

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Ok KIM ,  Seung Il MYONG ,  Sang Soo LEE ,  Jong Hyun LEE

IPC: H04W88/06

CPC classification number: H04W88/06 ,  H04L5/0091 ,  H04L27/2602

Abstract: A wired/wireless converged media access control (MAC) adaptor and a method for transmitting a frame using the same. The wired/wireless converged MAC adaptor may include a service network interface (SNI) to transmit a MAC frame corresponding to a wired or wireless service, or common public radio interface (CPRI) data, a frame conversion unit to convert, into an orthogonal frequency division multiplexing (OFDM) frame, a wired/wireless converged MAC frame having a common frame structure of the MAC frame corresponding to the wired or wireless service or the CPRI data, and an OFDM interface configured to transmit the OFDM frame to an optical OFDM modem by dynamically allocating sub-carriers based on data transmission characteristics.

Abstract translation: 有线/无线融合媒体访问控制（MAC）适配器以及使用该适配器发送帧的方法。 有线/无线融合MAC适配器可以包括用于发送对应于有线或无线服务的MAC帧的服务网络接口（SNI）或公共无线电接口（CPRI）数据，将转换成正交频率的帧转换单元 分割复用（OFDM）帧，具有与有线或无线服务或CPRI数据相对应的MAC帧的公共帧结构的有线/无线融合MAC帧以及被配置为将OFDM帧发送到光OFDM调制解调器的OFDM接口 通过基于数据传输特性动态分配子载波。