公开(公告)号：US5475521A

公开(公告)日：1995-12-12

申请号：US58454

申请日：1993-05-06

Applicant: Rolf Heidemann

Inventor： Rolf Heidemann

IPC: G02F1/35 ,  H01S3/094 ,  H01S3/13 ,  H01S3/131 ,  H04B10/291 ,  H04B10/293 ,  H04B10/17

CPC classification number: H04B10/2931 ,  H04B10/2912 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/10015

Abstract: If, in optical communication systems using fiber-optic amplifiers, the optical isolator at the input is omitted on cost grounds and because of the deterioration of the noise characteristics caused by the insertion loss, a giant pulse may be developed when a fiber-optic connector at the input is being separated. To avoid this occurrence, use is made of a monitoring device (7) which, when the power input to the fiber-optic amplifier (4, 5, 3, 6) drops below a given threshold, quickly turns off the current of the pump laser (4) or interrupts the light path of the pump laser (4).

Abstract translation: 如果在使用光纤放大器的光通信系统中，输入端的光隔离器在成本上被忽略，并且由于由插入损耗引起的噪声特性的恶化，则当光纤连接器 在输入被分离。 为了避免这种情况的发生，使用监视装置（7），当光纤放大器（4,5,3,6）的电力输入下降到低于给定阈值时，快速关闭泵的电流 激光（4）或中断泵激光器（4）的光路。

公开(公告)号：US5363385A

公开(公告)日：1994-11-08

申请号：US20083

申请日：1993-02-19

Applicant: Rolf Heidemann

Inventor： Rolf Heidemann

IPC: H01S3/07 ,  H01S3/06 ,  H01S3/094 ,  H01S3/13 ,  H01S3/131 ,  H01S3/30 ,  H01S3/091

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/09415 ,  H01S5/0612

Abstract: A fiber-optic amplifier for use with optical communications systems includes a light waveguide piece for amplifying an optical input signal. A pump light source is coupled to the amplifying light waveguide piece and includes a semiconductor laser for generating pump light for the amplifying light waveguide piece. A control device regulates the wavelength of the pump light generated by the semiconductor laser to be within a desired wavelength range so that the pump light is maximally absorbed in the amplifying light waveguide piece.

Abstract translation: 用于光通信系统的光纤放大器包括用于放大光输入信号的光波导片。 泵浦光源耦合到放大光波导片，并且包括用于产生用于放大光波导片的泵浦光的半导体激光器。 控制装置将由半导体激光器产生的泵浦光的波长调节到期望的波长范围内，使得泵浦光在放大光波导片中被最大程度地吸收。

公开(公告)号：US5091985A

公开(公告)日：1992-02-25

申请号：US640799

申请日：1991-01-16

Applicant: Rolf Heidemann

Inventor： Rolf Heidemann

IPC: G02B6/122 ,  G02B6/34 ,  G02B6/42 ,  G02B6/43 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14 ,  H05K7/14 ,  H05K7/18

CPC classification number: G02B6/43 ,  G02B6/34 ,  G02B6/4246

Abstract: In a signal connecting device for the establishment of communication paths between insertable units in a rack in which signal connections are formed by at least one optical waveguide which is associated with a rear panel of the rack, coupling is effected by imaging lenses associated with the insertable units. When a unit is inserted, its associated lenses are disposed opposite or lie against the optical waveguide of the rear panel.

Abstract translation: 在信号连接装置中，用于建立在机架中的可插入单元之间的通信路径，其中信号连接由与机架的后面板相关联的至少一个光波导形成，通过与可插入的相关联的成像透镜 单位。 当插入单元时，其相关联的透镜与后面板的光波导相对或相对设置。

公开(公告)号：US06320878B1

公开(公告)日：2001-11-20

申请号：US08971971

申请日：1997-11-17

Applicant: Heinz Krimmel ,  Rainer Fritschi ,  Rolf Heidemann

Inventor： Heinz Krimmel ,  Rainer Fritschi ,  Rolf Heidemann

IPC: H04J102

CPC classification number: H04N7/22 ,  H04N7/17309

Abstract: In a hybrid fiber/coax access network (NET) with downstream and upstream channels, the upstream channel serves to transmit voice and video signals as well as data signals from groups of customer locations (END) to a subcenter (HUB). A demarcation point (UP) provides the interface between the access network (NET) and the private network of the customer location (END). It contains at least two devices (BP4, BP5, BP6) for frequency-splitting received signals in the upstream frequency band, at least two switches (S4, S5, S6) following the at least two devices (BP4, BP5, BP6) and serving to block or unblock individual upstream frequency ranges, a measuring unit (MESS2) for measuring the amplitudes or intensities of the signals in the split frequency ranges, and a control unit (CTRL) for evaluating the measured values and controlling the at least two switches (S4, S5, S6). For a customer location (END), individual upstream frequency ranges can thus be telemetrically blocked for a limited time. Decentralized and autonomous monitoring of individual upstream frequency ranges is accomplished by a measuring unit which is controlled by the demarcation point (UP) itself.

Abstract translation: 在具有下行和上行信道的混合光纤/同轴电缆接入网络（NET）中，上行信道用于将语音和视频信号以及从客户位置组（END）的数据信号传输到子中心（HUB）。 分界点（UP）提供访问网络（NET）和客户位置（END）的专用网络之间的接口。 它包含用于在上行频带中分频接收信号的至少两个装置（BP4，BP5，BP6），至少两个装置（BP4，BP5，BP6）之后的至少两个开关（S4，S5，S6）和 用于阻断或解除单个上游频率范围的测量单元（MESS2），用于测量分离频率范围内的信号的幅度或强度的测量单元（MESS2），以及用于评估测量值并控制至少两个开关的控制单元（CTRL） （S4，S5，S6）。 对于客户位置（END），单个上游频率范围可以在有限的时间内被遥测。 单独的上行频率范围的分散和自主监控由测量单元完成，该测量单元由分界点（UP）本身控制。

公开(公告)号：US5719874A

公开(公告)日：1998-02-17

申请号：US547708

申请日：1995-10-19

Applicant: Rolf Heidemann ,  Heinz Krimmel ,  Jurgen Otterbach

Inventor： Rolf Heidemann ,  Heinz Krimmel ,  Jurgen Otterbach

IPC: H04J3/16 ,  H04J14/08

CPC classification number: H04J3/1647 ,  H04J3/1694 ,  H04J14/08

Abstract: In known optical distribution systems, a signal intended for the subscribers is distributed from a transmitting point to all network terminations (point-to-multipoint transmission). The receivers, which are connected to a passive optical network, are adapted to a common bit rate. If a need for a higher data rate arises at a network termination, this need can only be satisfied in the prior art by converting all receivers. This is not possible without interrupting the service. Furthermore, the conversion entails great expense, since the receivers of these network terminations where the need for information is unchanged have to be converted as well. By a time-division-multiplexing method, a time-division multiplex signal is generated which has a frame whose duration is equal to one bit period (T) of a digital signal, and which is divided into k time slots (ZS). At least two time slots (ZS) are used for one digital signal, and one respective time slot (ZS) is used for each of the remaining digital signals.

Abstract translation: 在已知的光分配系统中，用于用户的信号从发射点分发到所有网络终端（点到多点传输）。 连接到无源光网络的接收机适用于公共比特率。 如果在网络终止时需要较高的数据速率，则只需在现有技术中通过转换所有接收机来满足这一需求。 这不可能不中断服务。 此外，转换需要很大的费用，因为这些网络终端的接收者在信息需求不变的情况下也必须被转换。 通过时分多路复用方法，产生时间复用信号，该时分复用信号的持续时间等于数字信号的一个比特周期（T），并被划分为k个时隙（ZS）。 对于一个数字信号使用至少两个时隙（ZS），并且对于每个剩余的数字信号使用一个相应的时隙（ZS）。

公开(公告)号：US5521752A

公开(公告)日：1996-05-28

申请号：US217359

申请日：1994-03-24

Applicant: Rolf Heidemann ,  Bernhard Junginger

Inventor： Rolf Heidemann ,  Bernhard Junginger

IPC: H01S3/00 ,  H01S3/06 ,  H01S3/07 ,  H01S3/094 ,  H01S3/10 ,  H01S3/102 ,  H01S3/131 ,  H04B10/077 ,  H04B10/079 ,  H04B10/291 ,  H04B10/08

CPC classification number: H04B10/291 ,  H01S3/094003 ,  H04B10/077 ,  H04B10/07955 ,  H04B10/2912 ,  H01S3/0014 ,  H01S3/1022 ,  H01S3/1315

Abstract: The input light in fiber-optic amplifiers is monitored in order to turn off the system in which it is contained, or individual components of the system, e.g. the fiber-optic amplifier itself, when input light is lacking. To that effect, in known fiber-optic amplifiers, a portion of the input light is coupled out by a coupler. However, this coupler has disadvantages; e.g. the signal-to-noise ratio deteriorates. To monitor the input light, the fiber-optic amplifier of the present invention uses a device (4), which couples out and evaluates the pump light that was not absorbed by the section of the optical waveguide (2).

Abstract translation: 监视光纤放大器中的输入光，以便关闭其中所包含的系统或系统的各个部件，例如， 光纤放大器本身，当输入光不足时。 为此，在已知的光纤放大器中，输入光的一部分由耦合器耦合出来。 然而，这种耦合器有缺点; 例如 信噪比恶化。 为了监视输入光，本发明的光纤放大器使用一个装置（4），该装置耦合出并且评估不被光波导（2）的部分吸收的泵浦光。

公开(公告)号：US5499135A

公开(公告)日：1996-03-12

申请号：US323239

申请日：1994-10-14

Applicant: Rolf Heidemann ,  Thomas Pfeiffer ,  Manfred Kaiser

Inventor： Rolf Heidemann ,  Thomas Pfeiffer ,  Manfred Kaiser

IPC: H01S3/094 ,  H01S3/0941 ,  H01S3/30 ,  G02B6/26

CPC classification number: H01S3/094003 ,  H01S3/0941 ,  H01S3/094011 ,  H01S3/094076 ,  H01S3/09408

Abstract: Known optical amplifiers, which are used in a light transmission path to amplify the light signals to be transmitted, have the disadvantage that the semiconductor lasers, used as pump lasers therein, are very sensitive to feedback.According to the invention, the operating current of such pump lasers (4) is modulated at a high frequency, which causes the pump laser to operate in a multi-mode, thereby making it insensitive to feedback. For example, the operating current is DC, on which AC is superimposed.In the event the optical amplifier has two pump lasers, their operating current is also modulated. Both pump lasers are then advantageously alternately switched on and off at a sufficiently high switching frequency, which also prevents reciprocal interference.

Abstract translation: 用于光传输路径以放大要传输的光信号的已知光放大器的缺点在于，用作其中的激光器的半导体激光器对反馈非常敏感。 根据本发明，这种泵浦激光器（4）的工作电流以高频调制，这使得泵浦激光器以多模式操作，从而使其对反馈不敏感。 例如，工作电流为DC，叠加AC。 在光放大器有两个泵浦激光器的情况下，它们的工作电流也被调制。 两个泵浦激光器有利地以足够高的开关频率交替地接通和关断，这也防止了相互干扰。

公开(公告)号：US5473286A

公开(公告)日：1995-12-05

申请号：US198831

申请日：1994-02-18

Applicant: Rolf Heidemann

Inventor： Rolf Heidemann

IPC: H04B10/04 ,  H03L7/24 ,  H04B10/06 ,  H04B10/14 ,  H04B10/26 ,  H04B10/28

CPC classification number: H03L7/24

Abstract: A microwave generator has its microwave frequency optically phase-locked by means of a reference frequency of a reference signal, wherein at least one portion of an electronic circuit arrangement is supplied with an optical reference carrier signal modulated with the reference frequency. The circuit arrangement (16) includes two components (Q1 to Q6; Q10, Q11) based on different semiconductor types which are chosen so that one of them, the first component, which is of a first semiconductor type, optically responds to the reference carrier signal (3) and, thus, to the reference frequency (f.sub.1 Mod1. . . Modn) for achieving synchronization, and that--independently of the response of the first component--the other, second component, which is of a second semiconductor type, responds to an optical control carrier signal (6) differing in frequency from the reference carrier signal (3). The amplitude of the first component is controlled by means of a control signal (7) modulated onto the optical control carrier signal (6).

Abstract translation: 微波发生器通过参考信号的参考频率将其微波频率光锁相，其中电子电路装置的至少一部分被提供以参考频率调制的光参考载波信号。 电路装置（16）包括基于不同半导体类型的两个分量（Q1至Q6; Q10，Q11），这些半导体类型被选择为使得它们中的一个，第一半导体类型的第一分量光学地响应参考载波 信号（3），从而达到用于实现同步的参考频率（f1Mod1 ... modn），并且独立于第一分量的响应（另一个第二半导体类型的第二分量）响应 涉及与参考载波信号（3）不同频率的光控制载波信号（6）。 通过调制到光控制载波信号（6）上的控制信号（7）来控制第一分量的振幅。

公开(公告)号：US5412746A

公开(公告)日：1995-05-02

申请号：US216187

申请日：1994-03-22

Applicant: Rolf Rossberg ,  Rainer Fritschi ,  Jurgen Otterbach ,  Rolf Heidemann

Inventor： Rolf Rossberg ,  Rainer Fritschi ,  Jurgen Otterbach ,  Rolf Heidemann

IPC: G02B6/28 ,  G02B6/34 ,  G02B6/42 ,  G02B6/00 ,  G02B6/36

CPC classification number: G02B6/29332 ,  G02B6/2821 ,  G02B6/4204 ,  G02B6/4286 ,  G02B6/4287

Abstract: A coupler (1) made of optical fibers is provided with a device for detecting the light that is carried in one of the fibers at the coupler output in operation. For that purpose, the coupler (1) embedded in an enclosure (2) has at the coupler output a lens body (8) enclosing the optical fiber (pigtail 6) and a detector (9) aimed at the lens body (8). With the detector, during coupler operation, lost light dissipated via the primary coating of the optical fiber is received by the lens body (8 ) and carried by the detector (9) to an electrical evaluator.

Abstract translation: 由光纤制成的耦合器（1）设置有用于检测在操作中耦合器输出处的光纤之一中承载的光的装置。 为此，嵌入在外壳（2）中的耦合器（1）在耦合器输出处具有围绕光纤（尾纤6）的透镜主体（8）和瞄准透镜体（8）的检测器（9）。 利用检测器，在耦合器操作期间，通过光纤的初级涂层消散的损失的光被透镜体（8）接收并由检测器（9）承载到电子评估器。

公开(公告)号：US5337175A

公开(公告)日：1994-08-09

申请号：US833935

申请日：1992-02-11

Applicant: Horst Ohnsorge ,  Adolf Weygang ,  Rolf Heidemann

Inventor： Horst Ohnsorge ,  Adolf Weygang ,  Rolf Heidemann

IPC: H04J14/00 ,  H04B10/27 ,  H04B10/272 ,  H04B10/29 ,  H04B10/291 ,  H04B10/548 ,  H04J14/02 ,  H04M3/00 ,  H04N7/16 ,  H04N7/22 ,  H04N21/647 ,  H04B10/00 ,  H04B10/02

CPC classification number: H04B10/27 ,  H04B10/272 ,  H04B10/2912 ,  H04B10/2972 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0226 ,  H04J14/0282 ,  H04J14/0298

Abstract: Optical communications system for the subscriber area with optical amplifiers.The system according to the invention is used to distribute information signals, particularly telephone signals, from a center to a plurality of subscribers and to make possible a bidirectional transmission of telephone and data signals between the center and the subscribers. According to the invention, the network used for this purpose is a multistar fiber-optic network in which fiber-optic amplifiers (10, 11) are present between successive branch points. The information signals to be distributed are transmitted via the fiber-optic network with a first wavelength (.lambda..sub.1) to the subscribers, and the subscriber-specific information signals to be transmitted from the center (1) to the subscribers (T.sub.i) are converted by frequency modulation to a different frequency band (FB.sub.2) than the distribution signals (by frequency modulation) and transmitted to the subscribers at the same wavelength as the distribution signals, and the subscriber-specific signals to be transmitted from the subscribers (T.sub.i) to the center (1) are converted by frequency modulation to another frequency band (FB.sub.3) and are transmitted optically to the center with a second wavelength (.lambda..sub.2). This optical signal is amplified at suitable points (A) and several alternative embodiments for this amplification are indicated.

Abstract translation: 光通信系统，用于具有光放大器的用户区。 根据本发明的系统用于从中心向多个用户分发信息信号，特别是电话信号，并且可以在中心和订户之间双向传输电话和数据信号。 根据本发明，用于此目的的网络是其中光纤放大器（10,11）存在于连续分支点之间的多光纤网络。 要分配的信息信号经由具有第一波长（λ1）的光纤网络发送给用户，并且将从中心（1）发送到用户（Ti）的用户专用信息信号被转换 通过频率调制到与分配信号（通过频率调制）不同的频带（FB2）并且以与分配信号相同的波长发送给用户，以及要从用户（Ti）发送的用户特定信号到 中心（1）通过频率调制转换为另一个频带（FB3），并以第二波长（λ2）光学传输到中心。 该光信号在合适的点（A）被放大，并且指出了用于该扩增的若干备选实施例。