公开(公告)号：US20190158190A1

公开(公告)日：2019-05-23

申请号：US16194618

申请日：2018-11-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Young HUH ,  Sae Kyoung KANG

IPC: H04B10/69 ,  H04J14/02

Abstract: Disclosed herein are an optical receiver module and an operation method thereof. The optical receiver module includes an input part configured to receive a multiplexed optical signal of a plurality of wavelengths, an optical power/wavelength splitter configured to split the multiplexed optical signal into a plurality of channels, a wavelength filter configured to split the split multiplexed optical signal according to the plurality of wavelengths, and an output part configured to convert optical signals split according to the plurality of wavelengths into voltage signals and output the converted voltage signals. Therefore, the optical receiver module has wide bandwidth performance and low adjacent channel crosstalk performance with respect to the multiplexed optical signal.

公开(公告)号：US20190103921A1

公开(公告)日：2019-04-04

申请号：US16023145

申请日：2018-06-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC: H04B10/69 ,  H04J14/02

CPC classification number: H04B10/691 ,  H04B10/675 ,  H04B10/693 ,  H04J14/02

Abstract: 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.

公开(公告)号：US20140133870A1

公开(公告)日：2014-05-15

申请号：US14014348

申请日：2013-08-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Ki LEE ,  Joon Young HUH ,  Sae-Kyoung KANG

IPC: H04B10/54

CPC classification number: H04B10/541 ,  H04B10/5053

Abstract: An optical transmitter for generating a multi-level optical signal and a method therefore are provided. The optical transmitter includes an optical power splitter configured to split one optical signal into N paths, N optical intensity modulators configured to modulate the split optical signals into binary optical signals, and an optical power combiner configured to combine the intensity-modulated optical signals to generate a multi-level optical signal having 2N levels.

Abstract translation: 提供了一种用于产生多电平光信号的光发射机及其方法。 光发射机包括配置成将一个光信号分成N个路径的光功率分配器，N个光强度调制器，被配置为将分离的光信号调制成二进制光信号;以及光功率组合器，被配置为组合经强度调制的光信号以产生 具有2N级的多级光信号。