System for data transmission in an optical system

Abstract

The invention relates to an optical light guide system comprising an interface for coupling in data and / or an interface for decoupling data and at least a first data channel for transmitting data, and a method for transmitting data in an optical system, comprising the following steps: coupling in data into an interface of a light beam guiding element; transmitting data by means of a first and / or a second data channel arranged within the light beam guiding element (or housing), wherein the data channel can also be used for partial monitoring of the light beam guiding element; decoupling the data from the interface.

Description

[0001] This application is a divisional application of the invention patent application filed on February 15, 2019, with application number 201910116291.3 and invention title "System for Data Transmission in an Optical System". Technical Field

[0002] This application claims priority to Luxembourg Patent Application No. LU 100973, filed October 22, 2018, and Luxembourg Patent Application No. LU 100706, filed February 15, 2018. Both applications are incorporated herein by reference in their entirety.

[0003] This invention relates to an optical guide element and system for data transmission in an optical system. Background Technology

[0004] For high-performance fiber optic cables, protection against uncontrolled leaked laser radiation is specified for workplace safety reasons. Therefore, it is recommended to use a safety system to monitor for fiber optic cable breaks, as damage (e.g., fiber breakage) releases dangerous amounts of laser radiation that could cause irreversible harm to humans. Therefore, even in the event of fiber optic cable damage, the safety system should be triggered and the laser shut down.

[0005] Solutions for detecting fiber optic cable breakage are known from the prior art. For example, published German patent application DE 19806629 A1 discloses a method for monitoring bending radius and fiber optic cable breakage, as well as an optical fiber cable for applying the method. Monitoring is performed by introducing at least one additional optical fiber into the main fiber to form an optical cable equipped with a receiving system. Excessive bending or breakage is detected by monitoring changes in radiation transmitted through the optical fiber. When a dangerous situation is detected, a warning signal is generated, or power transmission is shut off.

[0006] German utility model DE 20 2005 005 869 U1 discloses a supply line, particularly a tubular package for industrial robots, having multiple cables and / or lines and an integrated monitoring sensor for monitoring deformation of the supply line and having an evaluation device. The supply line includes unclad optical fibers surrounded by a sheath such that it is pressed against the fiber, wherein the optical fibers are connected to a feed point for coupling input light.

[0007] European patent application EP 1 662 288 A1 (corresponding to German utility model DE 20 2005018 553 U1) discloses a protective device for optical fibers, comprising a protective tube and at least one electrically conductive ring guided through the protective tube, the at least one electrically conductive ring having a defined impedance and specific impedance insulation, wherein the protective tube has a double-layer or multi-layer structure consisting of an inner layer of optically transparent electrically insulating material and at least one upper layer of non-transparent material, the conductive ring being arranged to pass through the tube in addition to the optical fiber, the conductive ring consisting of two mutually insulated electrical conductors connected at one end of the tube by a defined impedance and connected at the other end to an impedance control measuring unit, wherein the insulation of the two electrical conductors is selected such that direct contact affecting the electrical conductors or at least one of the electrical conductors due to thermal effects of leaked light in the event of optical fiber breakage or radiation is severed, and finally the change in resistance can be detected by the measuring unit.

[0008] Therefore, current methods for detecting breaks in fiber optic cables are based on the detection of electrical parameters by monitoring components integrated into the fiber optic cable—such as two or three electrical conductors—which are separated from each other by insulation, altering their properties when irradiated with a laser.

[0009] In addition to monitoring functions, data transmission along the optical guide system is also desired. This data includes control signals for the coupled or connected systems, as well as data transmitted by sensors or data containing characteristics of the connected systems. For the purposes of this invention, this data is also referred to as user data.

[0010] To transmit such data separately, a dedicated data cable can be used. The downside of this solution is the cumbersome handling it requires from the user. Summary of the Invention

[0011] Therefore, the object of the present invention is to provide an optical system in which user data can be transmitted without requiring additional design effort from the user.

[0012] The present invention provides an optical light guide element, which includes an interface for coupling input data and / or an interface for decoupling data and at least a first data channel for transmitting data.

[0013] In another embodiment, the light guide element includes at least a first electrical channel and a second electrical channel or optical channel.

[0014] In addition, the optical guide element may also include an optical channel as a second data channel.

[0015] According to the present invention, the optical guiding element includes a wire serving as a source for driving a second data channel, and a wire or optical control fiber arranged in the optical guiding element as a second channel.

[0016] In another embodiment of the invention, a light guide element is provided, and a second data channel can connect a source arranged at one end of the light guide element for generating electrical signals, electromagnetic waves or optical signals to a detector arranged at the other end of the light guide element.

[0017] In addition, the light guide element may include at least one plug-in connection device for transmitting user data, communicating with sensors and / or actuators, electrically controlling the source at one end of the light guide element, and / or signals from the source to the detector and / or signals from the detector.

[0018] According to another aspect of the invention, the source is arranged in a plug connection device connected to the optical guide element or in the optical guide element itself.

[0019] The invention also includes an embodiment in which a plug connection device connected to the light guide element interrupts the electrical channel and / or optical channel.

[0020] The optical guide element may also include plug-in connectors at both ends for the two channels, for connecting to another optical guide element.

[0021] In another embodiment, the light guide element may include at least one monitoring channel as a data line or a separate data line along the system.

[0022] Another object of the present invention is a light guide system comprising at least two interconnected light guide elements as described above, or interconnected light guide components including the light guide elements as described above.

[0023] Furthermore, the present invention includes a method for transmitting data in an optical system, the method comprising the following steps:

[0024] a. Couple the data input to the interface of the optical guide element;

[0025] b. Data is transmitted via a first and / or second data channel arranged within the optical guide element;

[0026] c. Decouple the data from the interface of the optical guide element.

[0027] The method of the present invention also includes using an electrical conductor as a first data channel.

[0028] Furthermore, in this method, the second data channel can be a control optical fiber or a wire.

[0029] The method of the present invention also specifies that data is transmitted electrically through a first data channel, and data is transmitted electrically, optically, or electromagnetically through a second data channel.

[0030] Furthermore, in the method according to the invention, the data to be transmitted can be generated inside and / or outside the optical guide element.

[0031] The method also specifies that the data to be transmitted is generated in the connector that couples the input to the optical guide.

[0032] Another object of the present invention relates to the use of the aforementioned method in an optical guiding system comprising at least two interconnected optical guiding elements as described above.

[0033] Furthermore, the present invention relates to transmitting data in an optical system using the optical guiding element as described above or the optical guiding element according to the above embodiments.

[0034] Other aspects, features, and advantages of the invention will become apparent from the following detailed description, simply by illustrating preferred embodiments and implementations. The invention is also capable of having other and different embodiments, and certain details thereof may be modified in various obvious ways without departing from the spirit and scope of the invention. Therefore, the drawings and descriptions are to be considered illustrative in nature and not restrictive. Further objects and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The invention will be described based on the accompanying drawings. It should be understood that the embodiments and aspects of the invention described in the drawings are merely illustrative and do not limit the scope of the claims in any way. The invention is defined by the claims and their equivalents. It should be understood that features of one aspect or embodiment of the invention may be combined with features of different aspects or multiple aspects of other embodiments of the invention, wherein:

[0036] Figure 1 An optical fiber cable with power fiber as well as electrical channel and control fiber is shown;

[0037] Figure 2 An optical fiber cable with a second coaxial cable as a second electrical channel is shown;

[0038] Figure 3 A schematic representation of redundant and distinct transmission points is shown;

[0039] Figure 4 This illustrates a schematic representation of redundant plug-in monitoring at the transmission point;

[0040] Figure 5 The series connection of the optical guide components is shown;

[0041] Figure 6 The structure of the data transmission path in the subsystem is shown;

[0042] Figure 7 A schematic structure of the evaluation unit is shown;

[0043] Figure 8 The structure of the data groups is shown. Detailed Implementation

[0044] The above-mentioned objectives of the invention are achieved through features in the non-dependent claims. The dependent claims cover further specific embodiments of the invention.

[0045] This invention relates to an optical light guide system and a method for transmitting data in an optical system. The optical light guide system includes an interface for coupling input data and / or an interface for decoupling data, and at least a first data channel for transmitting data. The method includes the steps of: coupling data into an interface of a beam guiding element; transmitting data via a first and / or second data channel disposed within the beam guiding element (or housing), wherein the data channel may also be used for partial monitoring of the beam guiding element; and decoupling the data from the interface.

[0046] The terms "optical element" and "optical component" will be used synonymously in conjunction with the description of this invention. Both can refer to fiber optic cables or connectors for fiber optic cables. Plugs or connections for coupling and decoupling laser radiation are also included by these terms. Optical systems are formed by optical elements or optical components.

[0047] The purpose of this invention is to provide an element for monitoring the breakage of optical fiber cables or optical guiding systems that is also used for transmitting user data or to provide a separate element for data transmission within the optical guiding system.

[0048] The channel defined within the meaning of this invention refers to a portion of the overall security channel of the invention, which therefore always consists of at least two channels and is used to transmit user data—i.e., data independent of the monitoring function. The entire security channel is integrated into a portion of the beam guiding system, such as fiber optic cables, optical connectors, etc. Therefore, the invention provides a security channel that ensures the safety of the system during operation even if one channel fails. Thus, the dual-channel security channel improves detection reliability in the sense that it is practically shut down only in case of damage and not even in the event of a failure in a single monitoring channel. The at least two channels that are part of the security channel according to the invention can be different or the same in terms of their function and operating mode. Each channel is located within a protective tube, i.e., adjacent to the power fiber. However, they are separate portions, i.e., not components of the power fiber.

[0049] A channel that is part of a secure channel—which can be used to transmit user data—is, for example, an electrical channel that extends along a beamguide system and is capable of transmitting data itself.

[0050] The geometry of the electrical conductor is unrestricted; therefore, possible designs include several separate conductors, with at least two cores of cable or wire that can be coaxial with each other.

[0051] The optical channel, as part of the security channel according to the invention, is a combination of at least one separate, so-called monitoring or control optical fiber, which, together with a power optical fiber, is fed into a protective tube and necessary coupling elements and is required for electrical transmission and processing converters. At least one material of the monitoring or control optical fiber is configured in a manner that absorbs the wavelength of high-power laser radiation, i.e., at least one of the core, cladding, protective coating, or shell. The monitoring or control optical fiber carries light for monitoring or transmitting user data. The optical channel extends along the beam guiding system and, in addition to its security functions, can independently transmit user data.

[0052] Retransmission within the beamguide system and evaluation unit may include converting optical signals into electrical signals (and vice versa).

[0053] These elements can be, for example, multi-channel monitoring elements. In the context of this invention, the term "multi-channel" means that the element uses at least two channels, for example, through one electrical channel and one optical channel or two electrical channels.

[0054] When using components for safety monitoring in optical systems, care must be taken to ensure that the safety function is not affected by user data transmission.

[0055] To better understand the invention, the safety components are shown and described below with reference to the accompanying drawings, so as to more easily understand their use in data transmission. The terms "channel" and "data channel" are used synonymously.

[0056] Figure 1 One embodiment is shown in which the fiber optic cable is sheathed in a protective tube 1, and in addition to the power fiber 5, another so-called control fiber 15 is placed within the same protective tube. A source 25 and a detector 30 are inserted into fiber optic cable connectors 20 or 30, respectively, with fiber optic cable sockets 35 added. The control fiber is arranged such that if the power fiber is damaged, the control fiber will also be damaged to ensure reliable detection. The control fiber guides the electromagnetic waves generated by the source / (a) transmitter from one end of the fiber optic cable to the other. The other end of the control fiber is terminated by a detector / receiver, which detects whether the control fiber is intact when the wave emitted by the source is correctly received at the detector.

[0057] Coaxial cable 1 forms the first monitoring channel 10, and control fiber 15 forms the second monitoring channel along power fiber 5. The two channels use different media (electric and optical) for the signal lines used to monitor the signals, thus creating true diversity and redundancy.

[0058] When implementing this scheme, it is essential to ensure that a suitable control fiber 15 is used. In particular, the absorption of the control fiber 15 within the wavelength range of the power carried in the power fiber 5, as well as crosstalk (optical coupling) between the power fiber and the control fiber, must be considered.

[0059] Crosstalk in the power fiber 5 to the control fiber 15 can be separated from the signal in the power fiber 5 by using a suitable signal mode generated by the source 25. A suitable signal mode is any property of the light generated by the source 25 that differs from the characteristics of the light carried in the power fiber 5. This can be, for example, a specific wavelength, a combination of different wavelengths, or modulation of the signal generated by the source.

[0060] Crosstalk can be minimized by selecting appropriate spectra for the source and detector, and by sheathing the control fiber.

[0061] Access to signals or user data can be achieved by connecting an optical cable separately from the optical cable connector 20. Figure 1 The plug 40 is led out and directly through the contact plug monitoring device in the fiber optic cable socket 35.

[0062] A plug-in monitoring device is a device that monitors whether the end of an optical cable or optical fiber system is correctly plugged into the appropriate record.

[0063] Figure 2 Another embodiment is shown, in which another (coaxial) cable 45 is inserted into the fiber optic cable in addition to the power fiber optic 5 and the existing (coaxial) cable 10 for breakage monitoring, replacing the control fiber optic cable 15 for breakage monitoring, thereby forming a second channel of the monitoring system. The evaluation of the two channels can be designed in different ways. One possibility is the parallel evaluation of the two channels. For this purpose, proven evaluation principles can be used. Fiber optic cable plug 20 is connected to fiber optic cable socket 35, wherein impedance 1 50 is connected to coaxial cable 1 10 and impedance 55 is connected to coaxial cable 245.

[0064] Figure 3This illustrates the basic structure of a redundant and diversified transmission point, such as between fiber optic cable plug 20 and fiber optic cable receptacle 35. Two monitoring channels cross over at the transmission point to the next component of the optical delivery system. Source / transmitter 25 moves from fiber optic cable plug 20 into fiber optic cable receptacle 35. Transmission via the electrical channel, designed for coaxial cable 110, and the optical channel (control fiber 15) now provides plug monitoring with the advantages of dual-channel and versatility. Possible faults, such as short circuits in the electrical contacts of the fiber optic connector (or unintentional interruption of the termination impedance), will not cause the safety function to fail.

[0065] In addition to electrical connections, it is also essential to ensure adequate optical coupling between the source / transmitter and the monitoring elements in the fiber optic cable.

[0066] Figure 4 This illustrates a redundant connection monitoring device. The structure corresponds to... Figure 2 The description in the document states that both channels are designed electrically. Figure 4 The interconnection of the plug-in monitoring device shown represents a possible variation. The plug-in monitoring device interrupts two channels of a portion of the monitoring device integrated into the fiber optic cable. This interruption can be detected through appropriate evaluation.

[0067] exist Figure 5 The image shows an optical fiber cable with a plug 20, which has two monitoring circuits as described above. Both are transmitted at the optical fiber cable socket to the next component 65 (also a subsystem) of the optical guiding system. This is a coaxial cable 110 as the first channel and a control optical fiber 15 shown as the second channel. Figure 5 The illustrated embodiments involve connections between other subsystems and the embodiments described above, thus involving the implementation of duplexing for the subsystems without compromising security requirements. As a result, continuous redundant monitoring operates across the connectivity of both subsystems.

[0068] The source of the subsystem forms the optical guiding system, which is also referred to as the system. Source 25 generates a suitable electrical signal, which is fed into the monitoring channel. A second monitoring element forms a second channel (or return channel). This can be designed optically (see above) and electrically (see above). By returning the signal via monitoring channel 2, it is possible to arrange the feeding and evaluation of the monitoring signal at the same end of the optical guiding system.

[0069] The light guide system must be designed such that there is coupling only between the two monitoring channels at the end of the monitoring chain, or the two monitoring channels are evaluated separately.

[0070] In the case of several interconnected subsystems, it is advantageous to achieve control and condition monitoring of the components involved. This requires data transmission along the optical fiber system. In the simplest case, this can be achieved through separate running cabling (existing technology); however, this is cumbersome for the user.

[0071] This invention integrates the data transmission path into the optical guide component involved. This integration also allows for the development of more feature-rich components. Therefore, for example, additional sensors, data storage, actuators, etc., can be integrated into the components of the optical transmission system, which can be controlled or read without additional user effort.

[0072] By using internally deployed data transmission channels, communication between modules in the optical transmission system can be achieved. This allows for the transmission and exchange of user data.

[0073] In another embodiment of the invention, user data is distributed along an optical guiding system (fiber optic cable, fiber optic coupler, etc.). Data distribution includes not only purely passive data transmission (which is also possible), but also participation from subsystems as active components (in...). Figure 5 The direct integration of optional communication components (60) in the synthetic network.

[0074] Subsystems that now form a network can perform both passive (simple data transmission without manipulating the data stream) and active (participating in data exchange) actions. For example, if a fiber optic cable or other component of a light-guiding system is an active participant in data transmission, it can receive, process, and / or feed user data (e.g., serial numbers, types, sensor data, etc.) from the data stream. The same applies to all other connected subsystems.

[0075] User (or payload) data refers to all types of data unrelated to the maintenance of safety functions. This can be any data from all connected subsystems and their peripheral devices. This includes control signals used for subsystem operation, as well as sensor data.

[0076] One way to participate in the data flow is, for example, to integrate additional data lines into the fiber optic cable and bring them out via additional connections on the fiber optic cable connector. However, this involves the disadvantages of additional components in the fiber optic cable and plug. The advantage of this option is that data transmission is independent of security monitoring.

[0077] Another possibility is to use a connection and a connection for data transmission, which, in any case, is integrated into the security circuitry for the fiber optic cable. The additional components required for coupling and decoupling data must not compromise the security features.

[0078] The transmission of user data can take over some or even all of the security functions. This can be accomplished, for example, through a combined data stream of security and user data.

[0079] If previously passive components (such as traffic light cables) are to become active components, then a power supply to these active components must be guaranteed. This can be accomplished through a separate connection or, to a limited extent, through the data cable itself.

[0080] Figure 6 The diagram illustrates a possible basic structure for the data transmission path based on subsystems 4 85 and 5 90. In this case, a redundant and diversified security system including monitoring channel 1 95 and monitoring channel 2 100 is represented as an example of the data transmission path. However, this operation applies regardless of the transmission medium.

[0081] In this configuration, each active subsystem includes a communication component 60 that receives an input data stream, modifies the input data stream according to the subsystem's task, and sends it to the next subsystem. The final subsystem in the chain closes the connection between two transmission channels, thus representing the end of the chain.

[0082] Evaluation unit 105 may be necessary to separate security functions from user data and to integrate networks of subsystems into higher-level systems.

[0083] Figure 7 A schematic structure of the evaluation unit 105 is shown. This serves two main purposes:

[0084] a. Monitor parameters that are important to the security functions of the transmission path (such as Security ID A (SIDA), Security ID B (SIDB), cycle time, short circuit in the transmission path, interruption in the transmission path, etc.) and output their status (output security circuit).

[0085] b. Provide interfaces for coupling and decoupling user data IDN (user data / communication).

[0086] If two channels are interconnected with the evaluation unit (or multiple evaluation units) completely independently of each other, it is also possible that only the security ID is sent on the respective channel, i.e., SIDA is sent on one channel and SIDB is sent on the other channel.

[0087] Evaluation unit 105 is formed as a coupling element of the higher-level system between transmission channels 195 and 2100. Evaluations of SIDA 110, SIDB 115, and IDN 120 are performed in evaluation unit 105. Evaluation unit 105 also has an output of security circuitry 125 and an output of user data or data for communication 130.

[0088] Figure 8 The possible structure of data packet 135 is shown. Data packet 135 is sent by evaluation unit 105 (not shown), modified by the communication module of the subsystem (not shown), and received and evaluated again by the evaluation unit. Data packet 135 includes data for evaluating SIDA 110, SIDB 115, and IDN 120.

[0089] SIDA and SIDB represent unique (for each entire system) identifying characteristics of the security assessment of redundant construction. Each security assessment only sends and evaluates the identifying characteristics determined by it.

[0090] If SIDA and SIDB are transmitted cyclically, the time required for this cycle depends on the reaction time required by the safety functions and is also monitored by the components of the safety assessment unit.

[0091] The remaining time of one cycle (which is not needed for the transmission of SIDA and SIDB) is used to transmit user data IDN.

[0092] The foregoing description of preferred embodiments of the invention has been presented for purposes of illustration and explanation. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and modifications and alterations may be made in accordance with the foregoing teachings, or may be obtained from the practice of the invention. The embodiments were chosen and described to explain the principles of the invention and its practical application, enabling those skilled in the art to utilize the invention in various embodiments suitable for the intended particular use. The scope of the invention is intended to be defined by the appended claims and their equivalents. The entire contents of each of the foregoing documents are incorporated herein by reference.

[0093] Figure label:

[0094] 1. Protective tube

[0095] 5 Power Fiber

[0096] 10 coaxial cables 1

[0097] 15 Control Fiber

[0098] 20 Fiber Optic Connectors

[0099] 25 Sources / Emitters

[0100] 30 Detectors / Receivers

[0101] 35 Fiber Optic Cable Socket

[0102] 40 plug

[0103] 45 Coaxial Cable 2

[0104] 50 impedance 1

[0105] 55 impedance 2

[0106] 60 Communication components

[0107] 65 Components of the light guide system

[0108] 70 Subsystem 1

[0109] 75 Subsystem 2

[0110] 80 Subsystem 3

[0111] 85 Subsystem 4

[0112] 90 Subsystem 5

[0113] 95 Monitoring Channel 1

[0114] 100 Monitoring Channel 2

[0115] 105 Evaluation Units

[0116] 110. Evaluation of SIDA

[0117] 115. Evaluate SIDB

[0118] 120 Evaluation of IDN

[0119] 125 Output Safety Circuit

[0120] 130 User Data / Communication

[0121] 135 Data Grouping

Claims

1. An apparatus for transmitting high-power laser light in a high-power laser system for laser processing operations, the apparatus comprising: A cable having a first end and a second end; A power optical fiber disposed within the cable and configured to transmit high-power laser light between a first end and a second end of the cable; A first monitoring channel is disposed within the cable and configured to transmit a first monitoring signal between a first end and a second end of the cable; A second monitoring channel is disposed within the cable and configured to transmit a second monitoring signal simultaneously with the first monitoring signal between a first end and a second end of the cable; and An evaluation unit is configured to communicate with a first monitoring channel and a second monitoring channel. The evaluation unit is configured to redundantly monitor interruptions in the transmission of a high-power laser through a power fiber based on redundant monitoring of the first and second monitoring signals. The evaluation unit interacts with user data associated with the high-power laser system and is configured to transmit user data signals containing user data as at least one of the first and second monitoring signals in at least one of the first and second monitoring channels. The user data signals transmitted as monitoring signals in at least one of the first and second monitoring channels are used both to monitor interruptions in the high-power laser transmission and to transmit user data.

2. The device according to claim 1, wherein, The user data transmitted in the user data signal is selected from a group consisting of control signals, sensor data, data transmission, data stream, inter-module communication, serial number, and type.

3. The device according to claim 1 or 2, wherein, User data signals are transmitted via the first monitoring channel ground, and user data signals are transmitted via the second monitoring channel ground, optical ground, or electromagnetic ground.

4. The device according to any one of claims 1-3, wherein, User data signals are generated inside the cable, outside the cable, and / or in a connector coupled to the cable.

5. The device according to any one of claims 1-4, wherein, The device also includes at least two subsystems belonging to the high-power laser system, each subsystem having a connection configured to be coupled to one of a first end and a second end of the cable, each connection being configured to be communicatively connected to a power fiber, a first monitoring channel, and a second monitoring channel.

6. The device according to claim 5, wherein, In order to transmit user data signals between the at least two subsystems, the evaluation unit is configured to transmit user data as a data stream from a first subsystem to a second subsystem in the at least two subsystems, wherein the first subsystem is configured to passively perform the transmission without manipulating the data stream; or In order to transmit user data signals between the at least two subsystems, the evaluation unit is configured to exchange user data in a data stream from a first subsystem to a second subsystem in the at least two subsystems, wherein the first subsystem is configured to actively perform the exchange. or In order to transmit user data signals between the at least two subsystems, the evaluation unit is configured to perform at least one of the following: transmitting control data configured to operate one of the at least two subsystems in the user data signals; and transmitting sensor data in the user data signals between the at least two subsystems; or At least one of the at least two subsystems includes an active component for transmitting user data signals, and at least one of the first monitoring channel and the second monitoring channel is configured to supply power to the active component.

7. The device according to claim 5, wherein, At least one of the at least two subsystems includes an active participant configured to transmit a user data signal in at least one of a first monitoring channel and a second monitoring channel. The user data signal has payload data available in at least one of the at least two subsystems, which is used as at least one of the first monitoring signal and the second monitoring signal for redundant monitoring of the interruption.

8. The device according to claim 7, wherein, The payload data includes one or more of the following: user data, serial number, type, sensor data, control signals, non-safety function data, data associated with at least one of the at least two subsystems, and data associated with peripheral devices of the at least two subsystems.

9. The device according to claim 5, wherein, Each of the first and second ends of the cable includes a cable plug disposed on the respective end of the cable, the cable plug being configured to connect to a socket of one of the at least two subsystems, the cable plug having a transmission point for a power fiber, a first monitoring channel, and a second monitoring channel, the transmission point being configured to connect to the socket.

10. The device according to any one of claims 1-9, wherein, The evaluation unit is configured to monitor at least one of the following: safety function, cycle time, transmission short circuit, and transmission interruption, as well as the first and second monitoring signals.

11. The device according to any one of claims 1-10, wherein, In order to redundantly monitor the transmission interruption of high-power laser in power fiber based on the first and second monitoring signals, the evaluation unit is configured to detect the interruption as a break in the plug connection of the power fiber, a break or damage to the power fiber, or an incorrect connection of either the first or second monitoring channel, wherein the evaluation unit is configured to shut down the high-power laser system in response to the detected interruption.

12. The device according to claim 11, wherein, At least one of the first and second monitoring channels includes an optical fiber, wherein the absorption of the material of the optical fiber is within the wavelength range of the laser power transmitted in the power optical fiber.

13. The device according to any one of claims 1-12, wherein, The first monitoring channel is a wire configured to conduct an electrical monitoring signal for a first monitoring signal, and the second monitoring channel is an optical fiber configured to conduct an optical monitoring signal for a second monitoring signal.

14. The device according to claim 13, wherein, The evaluation unit includes a source configured to communicate with optical fibers and wires, the source being at least partially driven by electrical monitoring signals from the wires and configured to generate optical monitoring signals for the optical fibers.

15. The device according to claim 14, wherein, The source is disposed in a socket to which at least one of the first and second ends of the cable is connected, in a cable plug disposed on at least one of the first and second ends of the cable, in the cable itself, or in a device connected to the cable.

16. The device according to any one of claims 13-15, wherein, The evaluation unit includes a detector configured to communicate with optical fibers and to detect optical monitoring signals.

17. The device according to claim 16, wherein, The detector is disposed in a socket to which at least one of the first and second ends of the cable is connected, in a cable plug disposed on at least one of the first and second ends of the cable, in the cable itself, or in a device connected to the cable.

18. A method for transmitting user data between subsystems in an optical laser system, the method comprising the steps of: High-power lasers are guided through power optical fibers connected to optical guide elements between subsystems; The first monitoring signal and the second monitoring signal are simultaneously transmitted in the first monitoring channel and the second monitoring channel disposed in the optical guide element to redundantly monitor the breakage of the power optical fiber; User data is coupled into the interface of the optical guide element, and the user data is associated with the subsystem; User data is transmitted between subsystems in an optical laser system by transmitting user data signals as at least one of the first monitoring signal and the second monitoring signal in at least one of the first monitoring channel and the second monitoring channel arranged within the optical guide element; and Decouple user data from the interface of the optical guide element; In this process, the user data signal transmitted as a monitoring signal in at least one of the first monitoring channel and the second monitoring channel is used both to monitor for breaks in the power optical fiber of the optical guide element and to transmit user data.

19. The method according to claim 18, wherein, The second monitoring channel is controlled by optical fiber or wire; or User data is transmitted electrically to ground in the transmitted signal through the first monitoring channel, and user data is transmitted electrically to ground, optically to ground, or electromagnetically to ground in the transmitted signal through the second monitoring channel; or The user data to be transmitted is generated inside and / or outside the optical guide element.

20. The method according to any one of claims 18-19, wherein, The user data to be transmitted is generated in the connector coupled to the optical guide element.

21. The method according to claim 18, wherein, Transmitting user data between subsystems includes passively executing a first subsystem without manipulating the data stream to transfer user data as a data stream from a first subsystem to a second subsystem within the subsystem.

22. The method according to claim 18, wherein, Transmitting user data between subsystems includes exchanging user data as a data stream from a first subsystem to a second subsystem by actively executing a first subsystem in exchange.

23. The method according to claim 22, wherein, Actively performing the first subsystem during the exchange includes using the first subsystem to receive, process, and / or feed user data.

24. The method according to claim 18, wherein, Transmitting user data between subsystems includes at least one of the following: transmitting control signals configured to operate the subsystems in the user data; and transmitting sensor data between subsystems in the user data; or Monitoring for breakage in a power fiber includes detecting an interruption in the plug connection of the power fiber as a breakage or detecting damage to the power fiber as a breakage. The method further includes shutting down a high-power laser in response to the detected breakage; or The method further includes supplying power to at least one active component in the subsystem for transmitting user data via at least one of the first monitoring channel and the second monitoring channel.

25. A method for transmitting user data between subsystems of a high-power laser system, the method comprising the steps of: High-power lasers are guided through power optical fibers in laser cables that connect the subsystems of a high-power laser system. Breakages in the power fiber are monitored with redundant monitoring functionality by simultaneously transmitting a first monitoring signal and a second monitoring signal through a first monitoring channel and a second monitoring channel set along the laser cable. and User data is transmitted between subsystems by transmitting user data signals as at least one of the first and second monitoring signals in at least one of the first and second monitoring channels, while the fracture is monitored using at least one of the first and second monitoring channels, and redundant monitoring of the fracture is performed using the other of the first and second monitoring channels, wherein the user data is independent of and associated with the monitoring signals used in the monitoring function.

26. The method of claim 25, wherein, User data between subsystems is selected from groups consisting of control signals, sensor data, data transmission, data streams, inter-module communication, serial numbers, and types.

27. The method according to claim 25 or 26, wherein, Transmitting user data between subsystems includes passively executing a first subsystem without manipulating the data stream to transfer user data as a data stream from a first subsystem to a second subsystem within the subsystem.

28. The method according to any one of claims 25-27, wherein, Transmitting user data between subsystems includes actively performing a data stream exchange in a first subsystem within the subsystem to a second subsystem within the subsystem during the exchange.

29. The method according to claim 28, wherein, Actively performing the first subsystem during the exchange includes using the first subsystem to receive, process, and / or feed user data.

30. The method according to any one of claims 25-29, wherein, Transmitting user data between subsystems includes at least one of the following: transmitting control signals configured to operate the subsystems in the user data; and transmitting sensor data between subsystems in the user data.

31. The method according to any one of claims 25-30, wherein, Detecting breaks in a power fiber in the monitoring function includes detecting an interruption in the plug connection of the power fiber as the break or detecting damage to the power fiber as the break, and the method further includes shutting down a high-power laser in response to the detected break.

32. The method according to any one of claims 25-31, wherein, The method further includes supplying power to at least one active component in the subsystem for transmitting user data via at least one of the first monitoring channel and the second monitoring channel.

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