CN217693336U - Optical fiber link detection equipment and detection platform - Google Patents
Optical fiber link detection equipment and detection platform Download PDFInfo
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- CN217693336U CN217693336U CN202221538603.3U CN202221538603U CN217693336U CN 217693336 U CN217693336 U CN 217693336U CN 202221538603 U CN202221538603 U CN 202221538603U CN 217693336 U CN217693336 U CN 217693336U
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Abstract
The utility model belongs to the technical field of detect, a fiber link check out test set is disclosed, include: a first optical switch and a second optical switch; the first end of the first optical coupler is connected to the second end of the first optical switch, the second end of the first optical coupler is used for connecting the optical power meter, the third end of the first optical coupler is used for connecting the server end, and the fourth end of the first optical coupler is connected to the second end of the second optical switch; and the first end of the second optical coupler is connected to the third end of the second optical switch, the second end of the second optical coupler is used for connecting the photoelectric detector, and the third end of the second optical coupler is used for connecting the pulse laser. The utility model discloses an optical fiber link check out test set supports on-line test, can realize that light cat does not go up the electricity, light cat trouble, OLT end no signal, optic fibre do not insert state judgement such as light cat, light cat electricity under the prerequisite that does not influence user's normal communication, can realize the location/investigation of the optic fibre that opens circuit simultaneously for solve the problem of communication operator light port resource investigation difficulty.
Description
Technical Field
The utility model relates to a test technical field, in particular to optical fiber link check out test set and testing platform.
Background
The existing optical fiber link and terminal state detection device mainly adopts the optical power related technical scheme to detect by the principle of obtaining the optical signal intensity of the uplink ONU end and the downlink OLT end, and has single function.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an optical fiber link check out test set to solve the problem that can't realize optical fiber link state on-line measuring among the prior art. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to the utility model discloses the first aspect of the embodiment provides an optical fiber link check out test set.
In some optional embodiments, the optical fiber link detection apparatus includes:
a first end O1 of the first optical coupler O is used for connecting a user end, a second end O2 thereof is used for connecting an optical power meter, a third end O3 thereof is used for connecting a server end, and a fourth end O4 thereof is connected with a first end T1 of the second optical coupler;
and a first end T1 of the second optical coupler T is connected with a fourth end O4 of the first optical coupler, a second end T2 of the second optical coupler T is used for connecting a photoelectric detector, and a third end T3 of the second optical coupler T is used for connecting a pulse laser.
Optionally, the apparatus further includes a wavelength division multiplexer, an input end of which is used for connecting the pulse laser, and an output end of which is connected with the third end T3 of the second optical coupler.
According to the utility model discloses the second aspect of the embodiment provides an optical fiber link check out test set.
In some optional embodiments, the optical fiber link detection apparatus comprises:
a third end A3 of the first optical switch a is used for connecting a user terminal, a first end A1 thereof is connected to a first end B1 of the second optical switch B, and a second end A2 thereof is connected to a first end O1 of the first optical coupler;
a second optical switch B, a first terminal B1 of which is connected to the first optical switch first terminal A1, a second terminal B2 of which is connected to the first optical coupler fourth terminal O4, and a third terminal B3 of which is connected to the second optical coupler first terminal T1;
a first optical coupler O, a first end O1 of which is connected to the second end A2 of the first optical switch, a second end O2 of which is used for connecting an optical power meter, a third end O3 of which is used for connecting a server end, and a fourth end O4 of which is connected to the second end B2 of the second optical switch;
and a first end T1 of the second optical coupler is connected to a third end B3 of the second optical switch, a second end T2 of the second optical coupler is used for connecting the photoelectric detector, and a third end T3 of the second optical coupler is used for connecting the pulse laser.
Optionally, the apparatus further comprises a wavelength division multiplexer, an input end of the wavelength division multiplexer is used for connecting the pulse laser, and an output end of the wavelength division multiplexer is connected with the third end T3 of the second optical coupler.
According to the utility model discloses the third aspect of the embodiment provides an optical fiber link testing platform.
In some optional embodiments, the fiber link inspection platform comprises:
a first end O1 of the first optical coupler O is used for connecting a user end, a second end O2 thereof is used for connecting an optical power meter, a third end O3 thereof is used for connecting a server end, and a fourth end O4 thereof is connected with a first end T1 of the second optical coupler;
a first end T1 of the second optical coupler T is connected with a fourth end O4 of the first optical coupler, a second end T2 of the second optical coupler T is used for connecting a photoelectric detector, and a third end T3 of the second optical coupler T is used for connecting a pulse laser;
further comprising:
an optical power meter connected to the second end O2 of the first optical coupler;
a photodetector connected to the second photo-coupler second terminal T2;
and the pulse laser is connected to the third end T3 of the second optical coupler.
Optionally, the optical power meter is a 1490nm/1577nm optical power meter.
Optionally, the pulsed laser is one or more of a 1310nm pulsed laser, a 1550nm pulsed laser, a 1610nm pulsed laser, a 1625nm pulsed laser, and a 1650nm pulsed laser.
According to the utility model discloses in the fourth aspect of the embodiment, an optical fiber link testing platform is provided.
In some optional embodiments, the fiber link inspection platform comprises:
a third end A3 of the first optical switch a is used for connecting a user terminal, a first end A1 thereof is connected to a first end B1 of the second optical switch B, and a second end A2 thereof is connected to a first end O1 of the first optical coupler;
a second optical switch B, a first terminal B1 of which is connected to the first optical switch first terminal A1, a second terminal B2 of which is connected to the first optical coupler fourth terminal O4, and a third terminal B3 of which is connected to the second optical coupler first terminal T1;
a first optical coupler O, a first end O1 of which is connected to the second end A2 of the first optical switch, a second end O2 of which is used for connecting an optical power meter, a third end O3 of which is used for connecting a server end, and a fourth end O4 of which is connected to the second end B2 of the second optical switch;
a first end T1 of the second optical coupler is connected to a third end B3 of the second optical switch, a second end T2 of the second optical coupler is used for connecting a photoelectric detector, and a third end T3 of the second optical coupler is used for connecting a pulse laser;
further comprising:
an optical power meter connected to the second end O2 of the first optical coupler;
a photodetector connected to the second photo-coupler second terminal T2;
and the pulse laser is connected to the third end T3 of the second optical coupler.
Optionally, the optical power meter is a 1490nm/1577nm optical power meter.
Optionally, the pulsed laser is one or more of a 1310nm pulsed laser, a 1550nm pulsed laser, a 1610nm pulsed laser, a 1625nm pulsed laser, and a 1650nm pulsed laser.
According to the utility model discloses the fifth aspect of the embodiment provides an optical fiber link testing platform.
In some optional embodiments, the fiber link inspection platform comprises:
a first end O1 of the first optical coupler O is used for connecting a user end, a second end O2 thereof is used for connecting an optical power meter, a third end O3 thereof is used for connecting a server end, and a fourth end O4 thereof is connected with a first end T1 of the second optical coupler;
a first end T1 of the second optical coupler T is connected with a fourth end O4 of the first optical coupler, a second end T2 of the second optical coupler T is used for connecting a photoelectric detector, and a third end T3 of the second optical coupler T is used for connecting a pulse laser;
the input end of the wavelength division multiplexer is connected with the pulse laser, and the output end of the wavelength division multiplexer is connected with the third end T3 of the second optical coupler;
further comprising: an optical power meter connected to the second end O2 of the first optical coupler;
a photodetector connected to the second photo-coupler second terminal T2;
and the output end of the pulse laser is connected with the input end of the wavelength division multiplexer, and the output end of the wavelength division multiplexer is connected to the third end T3 of the second optical coupler.
Optionally, the optical power meter is a 1490nm/1577nm optical power meter.
Optionally, the pulsed laser is one or more of a 1310nm pulsed laser, a 1550nm pulsed laser, a 1610nm pulsed laser, a 1625nm pulsed laser, a 1650nm pulsed laser.
According to the utility model discloses the sixth aspect of the embodiment provides an optical fiber link testing platform.
In some optional embodiments, the fiber link inspection platform comprises:
a third end A3 of the first optical switch a is used for connecting a user terminal, a first end A1 thereof is connected to a first end B1 of the second optical switch B, and a second end A2 thereof is connected to a first end O1 of the first optical coupler;
a first end B1 of the second optical switch B is connected to the first end A1 of the first optical switch, a second end B2 thereof is connected to the fourth end O4 of the first optical coupler, and a third end B3 thereof is connected to the first end T1 of the second optical coupler;
a first optical coupler O, a first end O1 of which is connected to the second end A2 of the first optical switch, a second end O2 of which is used for connecting an optical power meter, a third end O3 of which is used for connecting a server end, and a fourth end O4 of which is connected to the second end B2 of the second optical switch;
a first end T1 of the second optical coupler is connected to a third end B3 of the second optical switch, a second end T2 of the second optical coupler is used for connecting a photoelectric detector, and a third end T3 of the second optical coupler is used for connecting a pulse laser;
the input end of the wavelength division multiplexer is connected with the pulse laser, and the output end of the wavelength division multiplexer is connected with the third end T3 of the second optical coupler;
further comprising: an optical power meter connected to the second end O2 of the first optical coupler;
a photodetector connected to the second photo-coupler second terminal T2;
and the output end of the pulse laser is connected with the input end of the wavelength division multiplexer, and the output end of the wavelength division multiplexer is connected to the third end T3 of the second optical coupler.
Optionally, the optical power meter is a 1490nm/1577nm optical power meter.
Optionally, the pulsed laser is one or more of a 1310nm pulsed laser, a 1550nm pulsed laser, a 1610nm pulsed laser, a 1625nm pulsed laser, a 1650nm pulsed laser.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the optical fiber link detection equipment supports online test, can realize the state judgment of the optical modem, the optical modem fault, no signal at an OLT (optical line terminal), the optical modem without being inserted with optical fiber, the optical modem power-on and the like on the premise of not influencing the normal communication of a user, can realize the positioning/troubleshooting of the broken optical fiber, and is used for solving the problem of difficult troubleshooting of optical port resources of a communication operator.
And integrating a plurality of function tests to realize full-function coverage from FTTx optical link state judgment to breakpoint maintenance.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating the overall architecture of an optical fiber link detection device according to an exemplary embodiment;
fig. 2 is a schematic diagram illustrating an overall structure of an optical fiber link detection apparatus according to another exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like, herein are used solely to distinguish one element from another element without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another like element in a structure, device, or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations and positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.
Herein, the term "plurality" means two or more, unless otherwise specified.
Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.
Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
Fig. 1 shows an alternative embodiment of the optical fiber link detection device of the present invention.
In this alternative embodiment, the optical fiber link detection apparatus includes:
the first end (O1) of the first optical coupler O is connected with the ONU end of the device, the second end (O2) of the first optical coupler O is connected with the optical power meter end of the device and is used for connecting the optical power meter, the third end (O3) of the first optical coupler O is connected with the OLT end of the device, and the fourth end (O4) of the first optical coupler O is connected with the first end (T1) of the second optical coupler. The ONU end of the optical fiber link detection equipment is connected with the user end, and the OLT end is connected with the server end.
And a first end (T1) of the second optical coupler T is connected with a fourth end O4 of the first optical coupler, a second end (T2) of the second optical coupler T is connected with an APD end of the device and is used for connecting a photoelectric detector so as to detect a reflection loss parameter required for determining the state of the optical modem and an optical scattering signal used for OTDR test, and a third end (T3) of the second optical coupler T is used for connecting a pulse laser.
When the terminal state of the optical modem is tested, the optical signal has the following four propagation paths: firstly, an OLT end signal transmitted by an O3 end is transmitted to an ONU end of equipment connected with an O1 end, so that an optical signal of a user end is ensured not to be interrupted during optical modem test; secondly, transmitting an OLT end signal transmitted by the O3 end to an optical power meter connected with the O2 end, and detecting whether the intensity of a downlink optical signal of the server meets the standard or not; when the optical modem state is tested, the pulse light of the pulse laser is sent to the T3 end of the second optical coupler T, then is sent to the O4 end of the first optical coupler O through the second optical coupler T, and is sent to the O1 end of the first optical coupler O through the first optical coupler O, and finally is sent to the ONU end of the device for testing the return loss of the optical modem end, and further judging whether the optical modem state is normal or not; and fourthly, the Rayleigh scattering signals of the pulse light return to the O1 end of the first optical coupler through the ONU end of the equipment, then pass through the first optical coupler O, then pass through the O4 end, then pass through the T1 end of the second optical coupler, then pass through the T2 end of the second optical coupler, and finally are transmitted to the APD end to be detected by the equipment.
The optical fiber link detection device in the above embodiment supports online testing when testing the optical modem terminal state, and can realize detection of the optical modem terminal state on the premise of not affecting normal communication of users.
The optical fiber link detection equipment can be used for detecting the states of various optical modem terminals.
State one, the optical modem is not powered on
If the optical power meter end detects the intensity of an optical signal (generally-20 dBm to-8 dBm) meeting the optical modem standard and the pulse laser does not emit light, the APD end cannot detect an uplink pulse signal sent by the OLT end, and when the pulse laser emits detection pulse light and the APD end detects that the reflection loss of the tail end of the optical fiber meets the optical modem standard (generally below 25 dBm), the optical modem terminal is judged to be in the state of not powering on the optical modem.
Second state, light cat fault
If the optical power meter end detects that the optical signal intensity (generally-20 dBm to-8 dBm) does not meet the standard of the optical modem and the pulse laser does not emit light, the APD end detects the uplink pulse signal sent by the OLT end, and then the state of the optical modem terminal at this time is judged to be a rogue cat (optical modem fault).
Third, no signal at OLT end
If the optical power meter end detects that the optical signal intensity (generally-20 dBm to-8 dBm) does not accord with the optical modem standard and the pulse laser does not emit light, the APD end cannot detect the uplink pulse signal sent by the OLT end, and the state of the optical modem terminal at the moment is judged to be that the OLT end has no signal.
Fourth, the optical fiber is not inserted into the optical modem
If the optical power meter end detects the intensity of an optical signal (generally-20 dBm to-8 dBm) meeting the optical modem standard, and the pulse laser does not emit light, the APD end cannot detect an uplink pulse signal sent by the OLT end, and the pulse laser emits detection pulse light, and the APD end detects that the reflection loss at the end of the optical fiber does not meet the optical modem standard (generally higher than 25 dBm), the optical modem terminal is judged to be in the state that the optical fiber is not inserted into the optical modem.
Fifth, the optical modem is powered on
If the optical power meter end detects the intensity of an optical signal (generally-20 dBm to-8 dBm) meeting the optical modem standard and the pulse laser does not emit light, the APD end detects an uplink pulse signal sent by the OLT end, the pulse laser emits detection pulse light, and the APD end detects that the reflection loss of the optical fiber tail end meets the optical modem insertion standard (generally higher than 25 dBm), the optical modem terminal state at the moment is judged to be the optical modem power-on (normal operation).
Fig. 2 shows another alternative embodiment of the optical fiber link detection apparatus of the present invention.
In this alternative embodiment, the optical fiber link detection apparatus includes:
a third end A3 of the first optical switch A is connected to the ONU end of the equipment, a first end A1 of the first optical switch A is connected to a first end B1 of the second optical switch B, and a second end A2 of the first optical switch A is connected to a first end O1 of the first optical coupler;
a first end B1 of the second optical switch B is connected to the first end A1 of the first optical switch, a second end B2 thereof is connected to the fourth end O4 of the first optical coupler, and a third end B3 thereof is connected to the first end T1 of the second optical coupler;
a first optical coupler, a first end O1 of which is connected to the second end A2 of the first optical switch, a second end O2 of which is an optical power meter end and is used for connecting an optical power meter, a third end O3 of which is connected to the equipment OLT end, and a fourth end O4 of which is connected to the second end B2 of the second optical switch;
a first end T1 of the second optical coupler is connected to a third end B3 of the second optical switch, a second end T2 of the second optical coupler is connected to an APD end of the device, and is used to connect to a photodetector to detect a reflection loss parameter required for determining the state of the optical modem and an optical scattering signal used for OTDR testing, and a third end T3 of the second optical coupler is used to connect to the pulse laser.
In this embodiment, the third end A3 of the first optical switch a is a common end of the first optical switch a, and is connected to the ONU end, and when the optical modem terminal state is tested, the third end A3 and the second end A2 are connected to serve as an optical transmission path; when the curve test of optical cable maintenance is carried out, the third end A3 is connected with the first end A1 to be used as an optical transmission path and used for testing an OTDR curve and judging the length and the loss condition of an optical fiber.
A third end B3 of the second optical switch B is a common end of the second optical switch B, when the optical modem terminal state is tested, the third end B3 of the second optical switch B is connected with a second end B2, the second end B2 is connected with an O4 end of the first optical coupler to be used as an optical transmission path, and meanwhile, the third end B3 of the second optical switch B is connected with a T1 end of the second optical coupler; when the curve test of optical cable maintenance is carried out, the third end B3 is connected with the first end B1, the first end A1 of the first optical switch is connected with the first end B1 of the second optical switch, and the optical transmission path is used as an optical transmission path and used for testing an OTDR curve and judging the length and loss condition of an optical fiber.
When the optical fiber link detection device of this embodiment is used for testing the state of the optical modem terminal, the working principle of the first optical coupler O and the second optical coupler T is the same as that of the first optical coupler O and the second optical coupler T in the embodiment shown in fig. 1, except that the optical transmission path is switched by the first optical switch a and the second optical switch B, which is not described herein again.
The optical fiber link detection device of this embodiment may also be used for a curve test of optical cable maintenance, and during the curve test of optical cable maintenance, the third end A3 of the first optical switch a is connected to the first end A1, the third end B3 of the second optical switch B is connected to the first end B1, and the device OLT is terminated with an optical fiber to be tested. At the moment, the pulse laser normally emits pulse light, the pulse light passes through the third end T3 of the second optical coupler, is transmitted into the second optical coupler T, then is transmitted into the first end B1 of the second optical switch B through the first end T1 of the second optical coupler and the third end B3 of the second optical switch, is transmitted into the third end A3 of the first optical switch A through the first end A1 of the first optical switch, and enters the optical fiber to be tested through the OUN end; reflected signals and scattered signals generated by the pulse light in the optical fiber to be detected pass through ONU end return equipment, are transmitted into a first optical switch first end A1 through a first optical switch third end A3, are transmitted into a second optical switch third end B3 through a second optical switch first end B1, are coupled at a second optical coupler T, and enter an APD end through a second optical coupler second end T2 for detection, so that a normal OTDR curve can be obtained, and the curve can further judge whether the optical cable is normal and judge the breakpoint position of the optical cable.
Optionally, the optical fiber link detection apparatus in each of the above embodiments further includes a Wavelength Division Multiplexer (WDM), the multiple pulse lasers are connected through the WDM, and an output end of the WDM is connected to the third end (T3) of the second optical coupler.
The optical fiber link detection device in each of the above embodiments, when connected to peripheral devices, such as a pulse laser, an optical power meter, and A Photo Detector (APD), constructs an optical fiber link detection platform, which can detect various states of the modem terminal.
In another embodiment, an optical fiber link detection platform is disclosed, including the optical fiber link detection device of the above embodiment, further including: an optical power meter connected to the optical power meter end of the optical fiber link detection device, i.e. to the first optical coupler second end (O2); a photodetector connected to the APD end of the optical fiber link detection device, i.e. to the second end (T2) of the second optical coupler; and the pulse laser is connected to the third end (T3) of the second optical coupler. Optionally, the number of the pulse lasers is multiple, and the third end (T3) of the second optical coupler is connected through the output end of the wavelength division multiplexer.
Optionally, the optical power meter is a 1490nm/1577nm optical power meter. The optical power meter is a 10G wavelength division power meter and is provided with an input optical port, a beam of light enters an optical power meter probe, the probe separates 1490nm light and 1577nm light in the beam of light for respective detection, and the purpose of the probe is to detect the respective light intensity of the 1490nm light and the 1577nm light in the beam of light. Of course, those skilled in the art can select optical power meters in other wavelength ranges according to the detection requirement.
Optionally, the pulsed laser is one or more of a 1310nm pulsed laser, a 1550nm pulsed laser, a 1610nm pulsed laser, a 1625nm pulsed laser, a 1650nm pulsed laser. Optionally, two or more pulse lasers are connected with the third end (T3) of the second optical coupler through a wavelength division multiplexer. Of course, one skilled in the art can also select pulsed lasers in other wavelength ranges according to the detection needs.
The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (10)
1. An optical fiber link detection apparatus, comprising:
a first optical coupler (O), wherein a first end (O1) of the first optical coupler is used for connecting a user end, a second end (O2) of the first optical coupler is used for connecting an optical power meter, a third end (O3) of the first optical coupler is used for connecting a server end, and a fourth end (O4) of the first optical coupler is connected with a first end (T1) of a second optical coupler;
and a first end (T1) of the second optical coupler (T) is connected with a fourth end (O4) of the first optical coupler, a second end (T2) of the second optical coupler (T) is used for connecting the photoelectric detector, and a third end (T3) of the second optical coupler (T) is used for connecting the pulse laser.
2. The optical fiber link detection apparatus of claim 1,
the device also comprises a wavelength division multiplexer, wherein the input end of the wavelength division multiplexer is used for connecting the pulse laser, and the output end of the wavelength division multiplexer is connected with the third end (T3) of the second optical coupler.
3. An optical fiber link detection apparatus, comprising:
a first optical switch (A), the third end (A3) of which is used for connecting a user terminal, the first end (A1) of which is connected to the first end (B1) of the second optical switch (B), and the second end (A2) of which is connected to the first end (O1) of the first optical coupler;
a second optical switch (B) having a first terminal (B1) connected to the first optical switch first terminal (A1), a second terminal (B2) connected to the first optical coupler fourth terminal (O4), and a third terminal (B3) connected to the second optical coupler first terminal (T1);
a first optical coupler (O), the first end (O1) of which is connected to the second end (A2) of the first optical switch, the second end (O2) of which is used for connecting an optical power meter, the third end (O3) of which is used for connecting a server end, and the fourth end (O4) of which is connected to the second end (B2) of the second optical switch;
and a first end (T1) of the second optical coupler is connected to a third end (B3) of the second optical switch, a second end (T2) of the second optical coupler is used for connecting the photoelectric detector, and a third end (T3) of the second optical coupler is used for connecting the pulse laser.
4. The optical fiber link detection apparatus of claim 3,
the device also comprises a wavelength division multiplexer, the input end of the wavelength division multiplexer is used for connecting the pulse laser, and the output end of the wavelength division multiplexer is connected to the third end (T3) of the second optical coupler.
5. A fiber optic link detection platform comprising the apparatus of claim 1 or 3, further comprising:
an optical power meter connected to the first optical coupler second end (O2);
a photodetector connected to the second optical coupler second terminal (T2);
and the pulse laser is connected to the third end (T3) of the second optical coupler.
6. The fiber optic link testing platform of claim 5,
the optical power meter is a 1490nm/1577nm optical power meter.
7. The fiber optic link testing platform of claim 5,
the pulse laser is one or more of 1310nm pulse laser, 1550nm pulse laser, 1610nm pulse laser, 1625nm pulse laser and 1650nm pulse laser.
8. An optical fiber link inspection platform comprising the apparatus of claim 2 or 4, further comprising:
an optical power meter connected to the first optical coupler second end (O2);
a photodetector connected to the second optical coupler second terminal (T2);
and the output end of the pulse laser is connected with the input end of the wavelength division multiplexer, and the output end of the wavelength division multiplexer is connected to the third end (T3) of the second optical coupler.
9. The fiber optic link testing platform of claim 8,
the optical power meter is a 1490nm/1577nm optical power meter.
10. The fiber optic link testing platform of claim 8,
the pulse laser is one or more of 1310nm pulse laser, 1550nm pulse laser, 1610nm pulse laser, 1625nm pulse laser and 1650nm pulse laser.
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| CN202221538603.3U CN217693336U (en) | 2022-06-20 | 2022-06-20 | Optical fiber link detection equipment and detection platform |
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| CN202221538603.3U CN217693336U (en) | 2022-06-20 | 2022-06-20 | Optical fiber link detection equipment and detection platform |
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| CN202221538603.3U Active CN217693336U (en) | 2022-06-20 | 2022-06-20 | Optical fiber link detection equipment and detection platform |
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| CN (1) | CN217693336U (en) |
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