公开(公告)号：US20050220459A1

公开(公告)日：2005-10-06

申请号：US10799785

申请日：2004-03-12

申请人： Dipl.-Ing. Schrodinger

发明人： Dipl.-Ing. Schrodinger

IPC分类号： H04B10/158 ,  H04B10/06

CPC分类号： H04B10/66

摘要： The invention relates to a receiver circuit having an optical receiving device, a plurality of amplifiers that are connected to the receiving device, and circuit means or a control circuit for individually activating and deactivating the individual amplifiers. In this case, the amplifiers each differ from one another in at least one parameter such as gain, and only one amplifier is activated at a given point in time, while the other amplifiers are deactivated. The invention makes it possible to match the receiver circuit to widely varying transmission rates.

摘要翻译： 本发明涉及具有光接收装置，连接到接收装置的多个放大器和用于单独激活和去激活各个放大器的电路装置或控制电路的接收机电路。 在这种情况下，放大器在至少一个参数（例如增益）中彼此不同，并且在给定时间点仅激活一个放大器，而其它放大器被去激活。 本发明使得可以将接收机电路与广泛变化的传输速率相匹配。

公开(公告)号：US20050213883A1

公开(公告)日：2005-09-29

申请号：US11136735

申请日：2005-05-24

申请人： David Welch ,  Radhakrishnan Nagarajan ,  Fred Kish ,  Mark Missey ,  Vincent Dominic ,  Atul Mathur ,  Frank Peters ,  Charles Joyner

发明人： David Welch ,  Radhakrishnan Nagarajan ,  Fred Kish ,  Mark Missey ,  Vincent Dominic ,  Atul Mathur ,  Frank Peters ,  Charles Joyner

IPC分类号： G02B6/12 ,  G02B6/34 ,  G02F1/017 ,  H01S5/026 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/12 ,  H01S5/20 ,  H01S5/22 ,  H01S5/34 ,  H01S5/40 ,  H01S5/50 ,  H04B10/12 ,  H04B10/145 ,  H04B10/158 ,  H04B10/17 ,  H04J14/02

CPC分类号： H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

摘要： A method is disclosed for optimizing optical channel signal demultiplexing in a monolithic receiver photonic integrated circuit (RXPIC) chip by providing an integrated channel signal demultiplexing with multiple waveguide input verniers provided to an WDM signal demultiplexer. The RxPIC chip may optionally include an integrated amplifier in at least some of the waveguide input verniers. The RxPIC chip may be comprised of, in monolithic form, a plurality of optional semiconductor optical amplifiers (SOAs) at the input of the chip to receive a WDM signal from an optical link which is provided along a plurality of waveguide input verniers to an integrated optical demultiplexer, such as, but not limited to, an arrayed waveguide grating (AWG), as a WDM signal demultiplexer. Thus, optical outputs from the respective semiconductor laser amplifiers are provided as vernier inputs to the optical demultiplexer forming a plurality of input verniers at the input to the optical demultiplexer. One of the vernier inputs to the chip is selected for operation in the RxPIC chip that corresponds to an optimum performance in matching a WDM channel signal wavelength grid of the received WDM signal to a wavelength grid of the on-chip optical demultiplexer.

摘要翻译： 公开了一种用于通过提供给提供给WDM信号解复用器的多个波导输入游标的集成信道信号解复用来优化单片接收机光子集成电路（RXPIC）芯片中的光信道信号解复用的方法。 RxPIC芯片可以可选地在至少一些波导输入游标中包括集成放大器。 RxPIC芯片可以以单片形式包括在芯片的输入处的多个可选的半导体光放大器（SOA），以从沿着多个波导输入游标提供的集成的光链路接收WDM信号 光解复用器，例如但不限于阵列波导光栅（AWG），作为WDM信号解复用器。 因此，来自各个半导体激光放大器的光输出被提供为在光解复用器的输入处形成多个输入游标的光解复用器的游标输入。 选择芯片的游标输入之一用于RxPIC芯片中的操作，其对应于将所接收的WDM信号的WDM信道信号波长网格与芯片上的光解复用器的波长网格匹配的最佳性能。

公开(公告)号：US20050185969A1

公开(公告)日：2005-08-25

申请号：US10782231

申请日：2004-02-19

申请人： Lothar Benedict Moeller ,  Chongjin Xie

发明人： Lothar Benedict Moeller ,  Chongjin Xie

IPC分类号： H04B10/04 ,  H04B10/00 ,  H04B10/06 ,  H04B10/142 ,  H04B10/152 ,  H04B10/158 ,  H04L25/497

CPC分类号： H04B10/695 ,  H04L25/497

摘要： An optical receiver adapted to apply multiple-sampling processing to an optical duobinary signal received over a transmission link in an optical communication system. In one embodiment, the receiver has an optical-to-electrical signal converter coupled to a decoder adapted to process an electrical signal generated by the converter to generate a bit sequence corresponding to the optical signal. To generate a bit value, the decoder first obtains two or more bit estimate values by sampling the electrical signal within a corresponding signaling interval two or more times. The decoder then applies a logical function to the bit estimate values, which produces the corresponding bit value for the bit sequence. Advantageously, embodiments of the present invention improve overall back-to-back (i.e., source-to-destination) system performance, e.g., by reducing the number of decoding errors associated with timing jitter and/or spontaneous beat noise in the received optical signal.

摘要翻译： 一种光接收器，适于对通过光通信系统中的传输链路接收的光双二进制信号应用多采样处理。 在一个实施例中，接收机具有耦合到解码器的光电信号转换器，其适于处理由转换器产生的电信号以产生对应于光信号的比特序列。 为了产生位值，解码器首先通过在相应的信令间隔内对两个或更多次的电信号进行采样来获得两个或更多个比特估计值。 然后，解码器将逻辑功能应用于比特估计值，其产生比特序列的相应比特值。 有利地，本发明的实施例通过减少与接收到的光信号中的定时抖动和/或自发性差拍噪声相关联的解码错误的数量来改进整体背靠背（即，源到目的地）的系统性能 。

公开(公告)号：US06919716B1

公开(公告)日：2005-07-19

申请号：US10229665

申请日：2002-08-28

申请人： Kevin Buehler

发明人： Kevin Buehler

IPC分类号： G01R19/00 ,  G01R31/302 ,  G01R31/305 ,  G01R31/308 ,  H03F3/08 ,  H04B10/158

CPC分类号： H03F3/08 ,  H04B10/6911

摘要： Precision measurement of optical signal power is provided. In one implementation, a Wilson current mirror senses current through an avalanche photodiode (APD) that has been exposed to the optical signal. The output of this APD may also be used to recover data. By incorporating a high voltage transistor as the buffer, the Wilson current mirror is able to operate in series with the APD at a high bias level.

摘要翻译： 提供光信号功率的精确测量。 在一个实施方案中，威尔逊电流镜通过暴露于光信号的雪崩光电二极管（APD）感测电流。 该APD的输出也可用于恢复数据。 通过结合高电压晶体管作为缓冲器，威尔逊电流镜能够以高偏置电平与APD串联工作。

公开(公告)号：US20050151064A1

公开(公告)日：2005-07-14

申请号：US11068657

申请日：2005-02-28

申请人： Phil Shapiro

发明人： Phil Shapiro

IPC分类号： H01J40/14 ,  H04B10/158 ,  H04N7/01

CPC分类号： H04B10/66

摘要： This disclosure is generally concerned with devices for determining photocurrent levels. One example of such a device is an optoelectronic device that includes a photodetector. The photodetector is configured to receive an optical signal and generate a corresponding electrical signal. The electrical signal is received by a pre-amplifier circuit which then converts the received electrical signal to a differential output. Finally, a post-amplifier circuit in communication with the first stage circuit is configured to derive an optical signal strength of the optical signal based upon the differential output received from the pre-amplifier circuit.

公开(公告)号：US20050151063A1

公开(公告)日：2005-07-14

申请号：US11068284

申请日：2005-02-28

申请人： Phil Shapiro

发明人： Phil Shapiro

IPC分类号： H01J40/14 ,  H04B10/158 ,  H04N7/01

CPC分类号： H04B10/66

摘要： This disclosure is generally concerned with devices for determining photocurrent levels. One example of such a device is an optoelectronic transceiver that includes a laser and a photodetector. The photodetector is configured to receive an optical signal and generate a corresponding electrical signal. The electrical signal is received by a first stage circuit which then converts the received electrical signal to a differential output. Finally, a second stage circuit in communication with the first stage circuit is configured to derive an optical signal strength of the optical signal based upon the differential output received from the first stage circuit.

摘要翻译： 本公开通常涉及用于确定光电流水平的装置。 这种装置的一个示例是包括激光器和光电检测器的光电收发器。 光电检测器被配置为接收光信号并产生相应的电信号。 电信号由第一级电路接收，然后第一级电路将接收到的电信号转换成差分输出。 最后，与第一级电路通信的第二级电路被配置为基于从第一级电路接收的差分输出来导出光信号的光信号强度。

公开(公告)号：US20050149791A1

公开(公告)日：2005-07-07

申请号：US11023523

申请日：2004-12-29

申请人： Hiroshi Nishimoto

发明人： Hiroshi Nishimoto

IPC分类号： G11B7/005 ,  G11B20/10 ,  H04B10/158 ,  H04B10/18 ,  G11B7/00 ,  G01R31/28 ,  G11B11/03 ,  G11B11/105 ,  G11B11/11 ,  G11B11/115 ,  G11B11/12 ,  G11B20/18 ,  G11B27/36

CPC分类号： H04B10/2569 ,  G11B7/005 ,  G11B20/10009

摘要： A digital signal receiving apparatus is disclosed. The digital signal receiving apparatus includes a main signal discriminating unit configured to discriminate a main signal of a received signal, a monitor signal discriminating unit configured to discriminate a monitor signal of the received signal, an error monitoring unit configured to monitor a discriminating error of the monitor signal discriminating unit, and a discriminating point control unit configured to control the discriminating points of the main signal discriminating unit and the monitor signal discriminating unit. The discriminating point control unit monitors an output of the error monitoring unit, moves the discriminating point of the monitor signal discriminating unit in the amplitude directions and the phase directions such that a discriminating error occurs, detects a center of discriminating points where errors are generated, and sets the detected center of the discriminating points as the discriminating point of the main signal discriminating unit.

摘要翻译： 公开了一种数字信号接收装置。 数字信号接收装置包括：主信号鉴别单元，被配置为鉴别接收信号的主信号;监视信号鉴别单元，被配置为鉴别接收信号的监视信号;误差监测单元，被配置为监视接收信号的鉴别误差; 监视信号识别单元，以及鉴别点控制单元，被配置为控制主信号鉴别单元和监视信号鉴别单元的识别点。 鉴别点控制单元监视误差监测单元的输出，在振幅方向和相位方向上移动监视信号鉴别单元的鉴别点，使鉴别误差发生，检测产生误差的识别点的中心， 并且将所检测的识别点的中心设置为主信号鉴别单元的识别点。

公开(公告)号：US20050135449A1

公开(公告)日：2005-06-23

申请号：US10741134

申请日：2003-12-19

申请人： Wayne Sorin ,  Ben Vakoc

发明人： Wayne Sorin ,  Ben Vakoc

IPC分类号： H01S5/10 ,  H01S5/40 ,  H01S5/50 ,  H04B10/155 ,  H04B10/158 ,  H01S5/00 ,  H04J14/00

CPC分类号： H04B10/506

摘要： Various methods and apparatuses are described in which an array of optical gain mediums capable of lasing are contained in a single integral unit. The array may contain four or more optical gain mediums capable of lasing. Each optical gain medium capable of lasing supplies a separate optical signal containing a band of wavelengths different than the other optical gain mediums capable of lasing in the array to a first multiplexer/demultiplexer. A connection for an output fiber exists to route an optical signal to and from a passive optical network.

摘要翻译： 描述了各种方法和装置，其中能够激发的光学增益介质的阵列被包含在单个整体单元中。 阵列可以包含四个或更多个能够激光的光学增益介质。 能够进行激光的每个光学增益介质提供单独的光学信号，该光学信号包含波长不同于能够在该阵列中激光的其他光学增益介质的波长的波长带到第一多路复用器/解复用器。 存在用于输出光纤的连接以将光信号路由到无源光网络。

公开(公告)号：US20050133691A1

公开(公告)日：2005-06-23

申请号：US10818878

申请日：2004-04-05

申请人： Harald Doppke ,  Detlev Theil ,  Torsten Harms ,  Stefan van Waasen

发明人： Harald Doppke ,  Detlev Theil ,  Torsten Harms ,  Stefan van Waasen

IPC分类号： H04B10/158 ,  H03F3/14

CPC分类号： H04B10/6933

摘要： Optical receiver circuit having a first, illuminable reception device for converting an optical signal into an analog electrical signal; a first preamplifier for amplifying the output signal of the first reception device; a postamplifier having a first input and a second input, the first input being supplied with the signal of the first reception device (said signal having been amplified in the first preamplifier) and the second input being supplied with a reference signal; an offset compensation circuit, which regulates the difference between the mean value of the electrical signal at the first input of the postamplifier and the reference signal at the second input of the postamplifier to a constant value; and having a signal detection device, which detects a control signal of the offset compensation circuit and carries out signal detection in a manner dependent on this signal. The invention provides signal detection in an optical receiver circuit, which manages with few additional components.

公开(公告)号：US20050095013A1

公开(公告)日：2005-05-05

申请号：US10745655

申请日：2003-12-29

申请人： Chia-Ming Tsai

发明人： Chia-Ming Tsai

IPC分类号： H04B10/158 ,  H04B10/06

CPC分类号： H04B10/66

摘要： An optical receiving device. The optical receiving device has a photodiode, transimpedance amplifier, and a feedback component. The photodiode has a first terminal coupled to a voltage source and a second terminal. When detecting an optical signal, the photodiode generates a current signal output from the second terminal. The transimpedance amplifier converts the current signal to a voltage signal and outputs the voltage. The feedback component is coupled between the first terminal and a input terminal of the transimpedance amplifier. The feedback component feeds a first voltage-changing signal, occurring in the input terminal of the transimdepance amplifier with the current signal, to the first terminal.

摘要翻译： 光接收装置。 光接收装置具有光电二极管，跨阻放大器和反馈部件。 光电二极管具有耦合到电压源和第二端子的第一端子。 当检测到光信号时，光电二极管产生从第二端输出的电流信号。 跨阻放大器将电流信号转换为电压信号并输出​​电压。 反馈部件耦合在第一端子和跨阻抗放大器的输入端子之间。 反馈部件将在跨导放大器的输入端子中出现的第一电压变化信号与电流信号馈送到第一端子。