CN212115331U

CN212115331U - WDM optical receiver

Info

Publication number: CN212115331U
Application number: CN202020751405.XU
Authority: CN
Inventors: 吴永智; 何计华
Original assignee: Hangzhou Fengrui Photoelectric Equipment Co ltd
Current assignee: Hangzhou Fengrui Photoelectric Equipment Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-08
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a WDM optical receiver, including the machine box, belong to optical receiver technical field, its characterized in that: the inside circuit board that sets up of machine box, circuit board upper surface set up light receiving module, circuit board one side sets up power source, power source one side sets up cable television signal output head, power source keeps away from cable television signal output head one side and sets up optical multiplexer, optical branching filter, optical multiplexer, optical branching filter one end set up optic fibre, optic fibre and light receiving module electric connection, light receiving module and circuit board electric connection, cable television signal output head and circuit board electric connection, circuit board and power source electric connection, the utility model discloses both satisfied multi-wavelength optical signal, especially the simultaneous transmission demand of 1550nm optical signal, realized gigabit xPON again or ten gigabit XG (S) -the switching of PON network, solved the problem that current optical receiver exists well.

Description

WDM optical receiver

Technical Field

The utility model relates to an optical receiver technical field specifically is a WDM optical receiver.

Background

Since the implementation of the fiber-to-the-home scheme, the access of the cable television, the broadband, and the telephone is becoming an important development direction in the field, and in the development process, technicians develop an optical receiver to realize the smooth access of the cable television, the broadband, and the telephone, but the existing optical receiver has some disadvantages, such as difficulty in simultaneously realizing the transmission of optical signals with multiple wavelengths, and particularly has a great problem for the reception of optical signals with 1550nm, such as difficulty in demultiplexing the optical signals to realize the switching of a gigabit xPON or a gigabit xg(s) -PON network, and for this situation, an improvement on the existing optical receiver is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a WDM optical receiver.

A WDM optical receiver comprising a housing, characterized by: the inside circuit board that sets up of machine box, the circuit board upper surface sets up light receiving module, circuit board one side sets up power source, power source one side sets up cable television signal output head, power source keeps away from cable television signal output head one side sets up optical multiplexer, optical branching filter, optical multiplexer, optical branching filter one end set up optic fibre, optic fibre with light receiving module electric connection, light receiving module with circuit board electric connection, cable television signal output head with circuit board electric connection, the circuit board with power source electric connection.

Furthermore, an optical multiplexer is arranged at one end of the optical multiplexer, which is far away from the optical fiber, and an optical demultiplexer is arranged at one end of the optical multiplexer, which is far away from the optical fiber.

Further, the optical coupling port is a 1550nm/1310nm/1270nm/1490nm/1577nm connection port, and the optical coupling port is a 1310nm/1270nm/1490nm/1577nm connection port.

Furthermore, a radio frequency attenuator is arranged between the cable television signal output head and the power interface, the radio frequency attenuator is electrically connected with the circuit board, and the radio frequency attenuator penetrates through the case.

Furthermore, an adjusting knob is arranged at one end of the radio frequency attenuator, which is far away from the circuit board, and an output level scale is arranged on the periphery of the adjusting knob and the surface of the case.

Further, the number of the output level scales is 6, and the indication values of the 6 output level scales sequentially increase in a clockwise direction.

Furthermore, the circuit board is kept away from photosynthetic ripples ware one side sets up the input power pilot lamp, the input power pilot lamp is kept away from light receiving module one side sets up power indicator, the input power pilot lamp the power indicator all with circuit board electric connection.

Furthermore, a connecting plate is arranged at one end, close to the circuit board, of the cable television signal output head, and the cable television signal output head is fixedly connected with the circuit board through the connecting plate.

Further, the surface of the light receiving module is provided with an adhesive tape.

The utility model discloses a WDM optical receiver's beneficial effect does:

1. the user only needs to connect the optical multiplexer port with the access optical network and connect the optical splitter port with the terminal optical equipment, so that the receiving of 1550nm/1310nm/1270nm/1490nm/1577nm optical signals can be realized, the 1550nm optical signals are converted into electric signals through the optical receiving module, the electric signals are demultiplexed and multiplexed into 1310nm/1270nm/1490nm/1577nm optical signals, and the optical signals can be output through the optical splitter port, thereby not only meeting the simultaneous transmission requirements of multi-wavelength optical signals, especially 1550nm optical signals, but also realizing the switching of a gigabit xPON (optical network) or a gigabit XG (S) -PON (passive optical network), and well solving the problems of the existing optical receiver;

2. the user can conveniently adjust the intensity of the output signal through the radio frequency attenuator, so that the WDM optical receiver is more convenient to use and can meet most of requirements of the user on the intensity of the output signal;

3. a user can visually monitor the working state and the input power of the power supply through the power supply indicating lamp and the input power indicating lamp and timely adjust the working state or the input power of the power supply when the working state or the input power of the power supply is abnormal, so that the use safety of the WDM optical receiver is effectively improved.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the protection scope of the present invention is not limited thereto.

Fig. 1 is a schematic diagram of an internal structure of a WDM optical receiver according to the present invention;

fig. 2 is a schematic diagram of an interface side structure of a WDM optical receiver according to the present invention.

The system comprises a machine box 1, a light receiving module 2, an adhesive tape 3, an input power indicator 4, a power indicator 5, a connecting plate 6, a cable television signal output head 7, a radio frequency attenuator 8, a power interface 9, an optical multiplexer 10, an optical demultiplexer 11, an optical fiber 12, a circuit board 13, an adjusting knob 14, an output level scale 15, an optical multiplexer 16 and an optical demultiplexer 17.

Detailed Description

For clarity, a WDM optical receiver according to the present invention will be further described with reference to fig. 1 to 2 of the drawings.

A WDM optical receiver comprising a housing 1, characterized in that: the inside circuit board 13 that sets up of machine box 1, 13 upper surfaces of circuit board set up

light receiving module

2, 13 one sides of circuit board set up interface 9, interface 9 one side sets up cable television signal output head 7, interface 9 keeps away from cable television signal output head 7 one side sets up optical multiplexer 10, optical branching filter 11, optical multiplexer 10, optical branching filter 11 one end set up optic fibre 12, optic fibre 12 with 2 electric connection of light receiving module, light receiving module 2 with 13 electric connection of circuit board, cable television signal output head 7 with 13 electric connection of circuit board, circuit board 13 with 9 electric connection of power interface.

Furthermore, an optical multiplexer 16 is disposed at an end of the optical multiplexer 10 away from the optical fiber 12, and an optical demultiplexer 17 is disposed at an end of the optical demultiplexer 11 away from the optical fiber 12.

Further, the optical coupling port 16 is a 1550nm/1310nm/1270nm/1490nm/1577nm connection port, and the optical coupling port 17 is a 1310nm/1270nm/1490nm/1577nm connection port.

Further, a radio frequency attenuator 8 is arranged between the cable television signal output head 7 and the power interface 9, the radio frequency attenuator 8 is electrically connected with the circuit board 13, and the radio frequency attenuator 8 penetrates through the case 1.

Furthermore, an adjusting knob 14 is arranged at one end of the radio frequency attenuator 8 far away from the circuit board 13, and an output level scale 15 is arranged on the periphery of the adjusting knob 14 and the surface of the case 1.

Further, the number of the output level scales 15 is 6, and the indication values of the 6 output level scales 15 sequentially increase in the clockwise direction.

Further, the circuit board 13 is kept away from photosynthesizer 10 one side sets up input power pilot lamp 4, input power pilot lamp 4 is kept away from light receiving module 2 one side sets up power indicator 5, input power pilot lamp 4 power indicator 5 all with circuit board 13 electric connection.

Furthermore, a connecting plate 6 is arranged at one end of the cable television signal output head 7 close to the circuit board 13, and the cable television signal output head 7 is fixedly connected with the circuit board 13 through the connecting plate 6.

Further, the surface of the light receiving module 2 is provided with an adhesive tape 3.

The utility model discloses a WDM optical receiver's theory of operation does: an external stabilized voltage supply is connected through a power interface 9, an optical multiplexer 16 is connected with an access optical network, an optical splitter 17 is connected with terminal optical equipment, 1550nm/1310nm/1270nm/1490nm/1577nm optical signals are input into an optical combiner 10 through the optical multiplexer 16 and are coupled into an optical fiber 12 at the end part of the optical combiner 10 and then are transmitted to an optical receiving module 2, the optical receiving module 2 performs information processing on the 1550nm/1310nm/1270nm/1490nm/1577nm optical signals and transmits the 1550nm/1310nm/1270nm/1490nm/1577nm optical signals to an optical splitter 11 through the optical fiber 12 at the end part of the optical splitter 11, and the optical splitter 11 demultiplexes the optical signals into 1310nm/1270nm/1490nm/1577nm optical signals and then outputs the processed optical signals through the optical splitter 17.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A WDM optical receiver comprising a housing (1), characterized in that: a circuit board (13) is arranged in the case (1), a light receiving module (2) is arranged on the upper surface of the circuit board (13), a power interface (9) is arranged at one side of the circuit board (13), a cable television signal output head (7) is arranged at one side of the power interface (9), the power supply interface (9) is provided with an optical combiner (10) and an optical splitter (11) at the side far away from the cable television signal output head (7), one end of the optical multiplexer (10) and one end of the optical demultiplexer (11) are provided with optical fibers (12), the optical fiber (12) is electrically connected with the light receiving module (2), the light receiving module (2) is electrically connected with the circuit board (13), the cable television signal output head (7) is electrically connected with the circuit board (13), and the circuit board (13) is electrically connected with the power interface (9).

2. A WDM optical receiver according to claim 1, wherein the optical combiner (10) is provided with an optical combiner port (16) at an end remote from the optical fiber (12), and the optical splitter (11) is provided with an optical splitter port (17) at an end remote from the optical fiber (12).

3. A WDM optical receiver according to claim 2, wherein the optical combining port (16) is a 1550nm/1310nm/1270nm/1490nm/1577nm connection port, and the optical splitting port (17) is a 1310nm/1270nm/1490nm/1577nm connection port.

4. A WDM optical receiver according to claim 1, wherein a radio frequency attenuator (8) is disposed between the cable tv signal output header (7) and the power interface (9), the radio frequency attenuator (8) is electrically connected to the circuit board (13), and the radio frequency attenuator (8) extends through the housing (1).

5. A WDM optical receiver according to claim 4, characterized in that said radio frequency attenuator (8) is provided with an adjusting knob (14) at the end remote from said circuit board (13), said adjusting knob (14) being provided with an output level scale (15) at its periphery and on the surface of the housing (1).

6. A WDM optical receiver according to claim 5, wherein the number of said output level scales (15) is 6, the indications of 6 of said output level scales (15) increasing sequentially in a clockwise direction.

7. A WDM optical receiver according to claim 1, wherein an input power indicator (4) is disposed on a side of the circuit board (13) away from the optical multiplexer (10), a power indicator (5) is disposed on a side of the input power indicator (4) away from the optical receiver module (2), and both the input power indicator (4) and the power indicator (5) are electrically connected to the circuit board (13).

8. A WDM optical receiver according to claim 1, wherein a connection board (6) is provided at an end of the cable television signal output header (7) adjacent to the circuit board (13), the cable television signal output header (7) being fixedly connected to the circuit board (13) via the connection board (6).

9. A WDM optical receiver according to claim 1, wherein the optical receive module (2) is surface-mounted with tape (3).