公开(公告)号：US20040100695A1

公开(公告)日：2004-05-27

申请号：US10697120

申请日：2003-10-31

Applicant: ALCATEL

Inventor： Michael Schmidt ,  Eugen Lach

IPC: G02B005/30 ,  G02B027/28

CPC classification number: H04J14/08 ,  H04B10/532 ,  H04J14/06

Abstract: A receiver for an OTDM/PDM pulse train (10) in which the pulses (12) have alternating polarizations (P1, P2) has a polarization insensitive optical switch (16; 161, 162, 163, 164) for isolating optical pulses (10null) within the pulse train (10), and a polarization selective element (17) for separating from the isolated pulses (10null) at least one component that has a single polarization. This allows to considerable relax the constraints posed on the switch since components in the isolated pulses that result from interchannel interference can, at least to a large extent, be eliminated by the subsequent polarization selective element (17).

Abstract translation: 用于OTDM / PDM脉冲串（10）的接收器，其中脉冲（12）具有交替偏振（P1，P2）具有用于隔离光脉冲的偏振不敏感光开关（16; 161,162,163,164） '）和用于与隔离脉冲（10'）分离至少一个具有单一极化的分量的偏振选择元件（17）。 这允许相当松弛在开关上构成的约束，因为由通道间干扰产生的隔离脉冲中的组件至少可以在很大程度上被随后的偏振选择元件（17）消除。

公开(公告)号：US20030007213A1

公开(公告)日：2003-01-09

申请号：US10175079

申请日：2002-06-20

Applicant: ALCATEL

Inventor： Eugen Lach

IPC: H04J014/08

CPC classification number: H04J14/08 ,  G02F1/3517

Abstract: The invention refers to a fiber optical time division multiplexing device for modulating a laser carrier by some modulation signal, comprising at least one interferometrical unit The interferometrical unit comprises a first and a second optical path each one of said optical paths comprising one semiconductor optical amplifier, and one input port for some optical control signal. The interferometrical unit further comprises one input port for said laser carrier and one output port for some optical output signal, said carrier input port and said output port beeing common to both said optical paths. The laser carrier is split into two portions at the common carrier input port. One portion is travelling along the first optical path, while the other portion is travelling along the second optical path, both portions beeing individually amplified by the according SOA and beeing interferometrically reunified at the common output port. The actual phase of each one of the portions of said laser carrier depend upon the according control signal influencing the characteristics of the according SOA. The invention comprising a plurality of interferometrical units are cascaded one behind the other in such way, that the output signal of one interferometrical unit can be coupled into the carrier input of the following interferometrical unit. The invention further refers to a method of running the device as well as to a fiber optical telecommunication system comprising such device.

Abstract translation: 本发明涉及一种用于通过一些调制信号调制激光载波的光纤时分多路复用装置，包括至少一个干涉单元。干涉单元包括第一和第二光路，每个所述光路包括一个半导体光放大器， 和一个用于某些光控制信号的输入端口。 所述干涉单元还包括用于所述激光载体的一个输入端口和用于某些光输出信号的一个输出端口，所述载波输入端口和所述输出端口与所述光路两者共同。 激光载体在公共载波输入端口被分成两部分。 一部分沿着第一光路行进，而另一部分沿着第二光路行进，两部分蜂窝通过相同的SOA单独放大，并在公共输出端口进行干涉测量。 所述激光载体的每个部分的实际相位取决于影响相对SOA特性的相应控制信号。 包括多个干涉单元的本发明以这样的方式彼此级联，使得一个干涉单元的输出信号可以耦合到随后的干涉单元的载波输入中。 本发明还涉及一种运行该设备以及包括这种设备的光纤通信系统的方法。

公开(公告)号：US20040264978A1

公开(公告)日：2004-12-30

申请号：US10862434

申请日：2004-06-08

Applicant: ALCATEL

Inventor： Bernhard Junginger ,  Karsten Schuh ,  Eugen Lach

IPC: H04B010/04

CPC classification number: B82Y20/00 ,  G02F1/0121 ,  G02F1/01708 ,  G02F2203/26

Abstract: The present invention discloses an electro-optical element and a method for generating an amplitude-modulated optical signal (24). The element comprises a semiconductor substrate (12), an electro-optical modulation structure arranged on the substrate (12), a first terminal (22) for supplying an optical signal (20) to be modulated, a second terminal (28) for supplying an electrical modulation signal, and a modulation area adapted for modulating the optical signal (20) with the electrical modulation signal (50). According to one aspect of the invention, a limiter (30) is provided for limiting the electrical modulation signal. The limiter (30) is arranged on the substrate (12) and is operatively connected between a second terminal (28) and the modulation area.

Abstract translation: 本发明公开了一种电光元件和一种用于产生幅度调制光信号（24）的方法。 该元件包括半导体衬底（12），布置在衬底（12）上的电光调制结构，用于提供待调制的光信号（20）的第一端（22），用于提供待调制的第二端（28） 电调制信号和适于用电调制信号（50）调制光信号的调制区域。 根据本发明的一个方面，提供限制器（30）以限制电调制信号。 限制器（30）布置在基板（12）上并且可操作地连接在第二端子（28）和调制区域之间。

公开(公告)号：US20020181040A1

公开(公告)日：2002-12-05

申请号：US10155980

申请日：2002-05-29

Applicant: ALCATEL

Inventor： Eugen Lach

IPC: H04J014/00

CPC classification number: H04L25/06

Abstract: Summary A decision circuit for high data rates is disclosed comprising threshold detectors between which the data stream of the incoming signals is divided, a demultiplexer stage, and EXOR gates. Using the circuit, an eye monitor and a pseudoerror monitor can be constructed. Also disclosed is a transmission system using receivers incorporating the decision circuit according to the invention.

Abstract translation: 摘要公开了一种用于高数据速率的判决电路，其包括阈值检测器，在其间分配输入信号的数据流，解复用器级和EXOR门。 使用电路，可以构建眼睛监视器和伪错误监视器。 还公开了使用包含根据本发明的判定电路的接收机的传输系统。

公开(公告)号：US20020109888A1

公开(公告)日：2002-08-15

申请号：US10054860

申请日：2002-01-25

Applicant: ALCATEL

Inventor： Sebastien Bigo ,  Yann Frignac ,  Wilfried Idler ,  Eugen Lach

IPC: H04J014/02 ,  H04B010/12

CPC classification number: H04B10/25137 ,  H04J14/02 ,  H04J14/0224

Abstract: The invention shows a transmission system with a transmitter function, a transmitting fiber and a receiver function where the transmitter function comprising lightsources (1), modulators (2) and a multiplexer (3), and the receiver comprising at least a demultiplexer (5), filters and electrical receivers where the channels for left side filtering are modulated with modulators with a negative chirp and for right side filtering with modulators with positive chirp.

Abstract translation: 本发明示出了具有发射机功能，发射光纤和接收机功能的传输系统，其中发射机功能包括光源（1），调制器​​（2）和多路复用器（3），并且接收机至少包括解复用器（5） ，滤波器和电接收器，其中用于左侧滤波的信道用具有负啁啾的调制器调制，并且利用具有正啁啾的调制器进行右侧滤波。