CN210168045U - Optical module device - Google Patents
Optical module device Download PDFInfo
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- CN210168045U CN210168045U CN201921474889.1U CN201921474889U CN210168045U CN 210168045 U CN210168045 U CN 210168045U CN 201921474889 U CN201921474889 U CN 201921474889U CN 210168045 U CN210168045 U CN 210168045U
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Abstract
The utility model provides an optical module device, this optical module device includes: a light emitting sub-device with a narrow-band filter, a light receiving sub-device with a narrow-band filter, a transmitting circuit device and a receiving circuit device; the transmitting circuit device is connected with the light emitting secondary device with the narrow-band filter; the light emitting sub-device with the narrow-band filter is connected with the light receiving sub-device with the narrow-band filter; the receiving circuit device is connected with the light receiving sub-device with the narrow-band filter. The utility model discloses integrated OADM function on the optical module will optimize the network deployment, reduce the engineering installation degree of difficulty, practice thrift the network construction expense, improve the transmission efficiency of optic fibre wavelength.
Description
Technical Field
The utility model relates to an optical signal field particularly, relates to an optical module device.
Background
In the conventional optical fiber, an OADM (optical add/drop multiplexer) technology is used for transmitting optical signals, a general OADM node can be represented by a four-port model, and the basic functions include three types: as shown in fig. 1, the wavelength channels required for the downlink are multiplexed into the uplink signal, so that other wavelength channels pass through as unaffected as possible. The OADM works specifically as follows: the WDM signal from the line includes N wavelength channels, enters the 'Main Input' end of the OADM, selectively outputs the required wavelength channel from the down end and correspondingly inputs the required wavelength channel from the up end from the N wavelength channels according to the service requirement. Other wavelength channels which are not related to local are directly passed through the OADM and output from the line output end of the OADM after being multiplexed with the wavelength channel of the uplink. OADMs implement the functions of traditional electrical SDH add/drop multiplexing in the optical domain, which is done in the time domain, and have transparency and can process signals of any format and rate.
With the development of 5G networks, optical modules are used in each transmission node, but the efficiency of transmitting optical signals by the existing optical modules is low, and the multiplexing of optical fiber channels in the optical modules cannot be effectively improved, thereby increasing the cost for building many networks.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem of multiplexing of optical fiber channel in the optical module, the utility model provides an optical module device, optic fibre dilatation system.
The utility model provides an optical module device, optical module device includes: a light emitting sub-device with a narrow-band filter, a light receiving sub-device with a narrow-band filter, a transmitting circuit device and a receiving circuit device;
the transmitting circuit device is connected with the light emitting secondary device with the narrow-band filter;
the light emitting sub-device with the narrow-band filter is connected with the light receiving sub-device with the narrow-band filter;
the receiving circuit device is connected with the light receiving sub-device with the narrow-band filter.
Furthermore, the light emitting sub-device of the narrow-band filter and the light receiving sub-device of the narrow-band filter are connected through a bridging optical fiber.
Further, the light emission sub-device of the narrow-band filter comprises:
the device comprises a light emitter, a first narrow-band filter, a first lens and a first glass capillary tube;
the light emitter sends an optical signal, and the optical signal sequentially passes through the first narrow-band filter, the first lens and the first glass capillary tube.
Further, the light-receiving sub-device of the narrow-band filter includes:
the photoelectric detector, the second narrow-band filter, the second lens and the second glass capillary tube;
the optical signal passes through the second glass capillary, the second lens, the photoelectric detector and the second narrow-band filter in sequence to reach the photoelectric detector.
Further, the light module apparatus further includes: an upper light coupling port;
the upper light coupling port is positioned in the second glass capillary tube.
Further, the light module apparatus further includes: a lower light coupling port;
the lower light coupling port is positioned in the first glass capillary tube.
Further, the light module apparatus further includes: a control circuit device;
the control circuit device is connected with the transmitting circuit device and the receiving circuit device.
Further, the control circuit means is for wireless communication.
The utility model discloses integrated OADM function on the optical module will optimize the network deployment, reduce the engineering installation degree of difficulty, practice thrift the network construction expense, improve the transmission efficiency of optic fibre wavelength.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art transmission flow of a WDM-based OADM optical add/drop multiplexer;
fig. 2 is a schematic structural diagram of an optical module provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of a light emitting sub-device with a narrow-band filter and a light receiving sub-device with a narrow-band filter according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the function, node structure, product and application of the existing WDM-based OADM system add/drop multiplexed tributary signals are referred to as optical channels in units of wavelength. OADM devices are one of the key node devices of an all-optical network.
The WDM signal contains a plurality of wavelength channels which are multiplexed for transmission in an optical fiber, each wavelength channel carrying a separate traffic stream.
If only one wavelength of optical signal is carried in one optical fiber, this cost is expensive relative to the cost of the optical fiber. If optical signals of multiple wavelengths are transmitted in an optical fiber without interfering with each other, the cost is saved and the transmission bandwidth is increased. The WDM technology is currently used to transmit optical signals of various wavelengths in an optical fiber. Each wavelength of optical signal represents a channel, and multiple channels simultaneously transmit data in one optical fiber, i.e. multiplexing of one optical fiber.
The OADM implements the functions of traditional electrical SDH (Synchronous Digital Hierarchy) Add/Drop multiplexing in the optical domain, which is done in the time domain, and has transparency and can process signals of any format and rate, which is superior to the electrical ADM (Add-Drop Multiplexer) used in SDH network.
Here, the term add/drop is used herein to mean add and drop.
Add means that a channel of one wavelength is newly added to an optical signal entering an optical add/drop multiplexer and is multiplexed with other channels into an optical fiber.
Drop means that in the optical signal entering the optical add/drop multiplexer, one wavelength channel is removed and other unrelated channels pass through the optical add/drop multiplexer directly. Note that: the downlink channel is directly transferred to the device for service processing, and is not cut off.
Based on present optical module is lower in the efficiency of transmission light signal, can't effectively improve optical module in the multiplexing of fibre channel, also increased many network construction's expense scheduling problem from this, the embodiment of the utility model provides an optical module device, as shown in fig. 2, this optical module device includes: a light emitting sub-device 1 with a narrow-band filter, a light receiving sub-device 2 with a narrow-band filter, a transmitting circuit device 3 and a receiving circuit device 4;
the transmitting circuit device 3 is connected with the light emitting sub-device 1 with the narrow-band filter;
the light emitting sub-device 1 with the narrow-band filter is connected with the light receiving sub-device 2 with the narrow-band filter;
the receiving circuit arrangement 4 is connected to the light-receiving sub-arrangement 2 with a narrow-band filter.
Specifically, ROSA (Receiver Optical Subassembly) TOSA (Transmitter Optical Subassembly) in the embodiment of the present invention, ROSA and TOSA used are the sub-Optical Subassembly 3 with the narrow band filter and the sub-Optical Subassembly 1 with the narrow band filter.
Here, the narrow band filter is subdivided from the band pass filter, and is defined as the band pass filter, that is, the filter allows the optical signal to pass through in a specific wavelength band, and prevents the optical signal from deviating from the specific wavelength band on both sides, and the passband of the narrow band filter is relatively narrow, and is generally 5% or less of the center wavelength value.
As can be seen from fig. 2, the transmitting circuit arrangement 3 is connected to the light emitting sub-assembly 1 with the narrow-band filter for transmitting the light signal sent by the transmitting circuit arrangement to the light emitting sub-assembly 1 with the narrow-band filter; the light emission secondary device 1 of the narrow-band filter is connected with the light receiving secondary device 2 of the narrow-band filter, and is used for transmitting the light signals reflected by the narrow-band filter into a device opposite to the current device, for example, the light signals pass through the light receiving secondary device 2 of the narrow-band filter and are reflected by the light receiving secondary device 2, the specified wavelength light passes through the narrow-band filter and is retained in the light receiving secondary device 2, and the rest wavelengths are reflected into the light emission secondary device 1 of the narrow-band filter; the optical module device in the embodiment of the present invention further includes a receiving circuit device 4, and the receiving circuit device 4 is connected to the light receiving sub-device of the band-narrow band filter, and is configured to receive the specified wavelength passing through the band-narrow band filter.
The utility model discloses integrated OADM function on the optical module will optimize the network deployment, reduce the engineering installation degree of difficulty, practice thrift the network construction expense, improve the transmission efficiency of optic fibre wavelength.
Based on the content of the above embodiments, as an alternative embodiment: the light emitting sub-assembly 1 of the narrow band filter is connected to the light receiving sub-assembly 2 of the narrow band filter by a bridging fiber 5.
In particular, as shown in fig. 2, the light-emitting sub-assembly 1 with the narrow-band filter and the light-receiving sub-assembly with the narrow-band filter are connected by a bridging fiber 5, wherein all wavelengths except a specific wavelength are transmitted in the bridging fiber.
Based on the content of the above embodiments, as an alternative embodiment: the light emission sub-device 1 with narrow-band filters comprises:
a light emitter 101, a first narrow band filter 102, a first lens 103, a first glass capillary 104;
the light emitter 101 transmits an optical signal, and the optical signal passes through the first narrow band filter 102, the first lens 103, and the first glass capillary 104 in this order.
The light-receiving sub-assembly 2 of the narrow-band filter includes:
a photoelectric detector 201, a second narrow-band filter 202, a second lens 203 and a second glass capillary 204;
the optical signal passes through the second glass capillary 204, the second lens 203 and the second narrow-band filter 202 in sequence to reach the photodetector 204.
Specifically, as shown in fig. 3, the optical signal sent by the light emitter 1 passes through the first narrow band filter 102 and the first lens 103, and is injected into the optical fiber located at the center of the glass capillary 3 for output;
the optical signal is input through the optical fiber 6, injected into the second lens 203 through the second glass capillary 204, passes through the second lens 203 and the second narrow-band filter 202 to reach the photodetector 204, and is received.
The rest optical signals except the specific wavelength are input through the optical fiber 6, injected into the second lens 203 through the second glass capillary 204, pass through the second lens 203 to reach the second narrow band filter 202, reflected by the second narrow band filter 202, injected into the bridging optical fiber 5 positioned in the middle of the second glass capillary 204 through the second lens 203 again, enter the first glass capillary 104 through the bridging optical fiber 5, injected into the first lens 103 after passing through the first glass capillary 104 to reach the first narrow band filter 102, reflected by the first narrow band filter 102, injected into the optical fiber 7 positioned in the center of the first glass capillary 104 again through the first lens 103 to be output.
Based on the content of the above embodiments, as an alternative embodiment: the optical module device further includes: an upper light coupling port 205;
the upper light coupling port 205 is located in the second glass capillary 204.
The optical module device further includes: a lower light coupling port 105;
the lower light coupling port 105 is located in the first glass capillary 104.
Specifically, as shown in fig. 3, an upper light coupling port 205 is provided in the middle of the second glass capillary 204 for leading out the upper optical fiber 6, and a lower light coupling port 105 is provided in the middle of the first glass capillary 104 for leading out the lower optical fiber 7.
After the optical signal is processed by the second narrow-band filter 202 in the light receiving sub-device 2, the specified wavelength light passes through the second narrow-band filter 202, and the optical signal is converted into an electrical signal by the photodetector 201 and then processed by the receiving circuit device 4; light with other wavelengths is reflected to the secondary light emitting device 1 through the bridging optical fiber 5, the secondary light emitting device 1 reflects the light with the other wavelengths to the lower optical fiber 7, a specified wavelength optical signal sent by the transmitting circuit 3 is also transmitted to the lower optical fiber 7, and the specified wavelength optical signal sent by the transmitting circuit 3 and the light with the other wavelengths reflected from the upper optical fiber 6 are converged together and transmitted out through the lower optical fiber 7.
Based on the content of the above embodiments, as an alternative embodiment: the optical module device further includes: control circuit means 8;
the control circuit device 8 is connected to the transmission circuit device 3 and the reception circuit device 4.
The control circuit arrangement 8 is used for wireless communication.
Specifically, as shown in fig. 2, the optical module further includes a control circuit device 8, the control circuit device 8 is connected to the transmitting circuit device 3 and the receiving circuit device 4, and the control circuit device 8 supports a short-range wireless communication function. The optical module and the adjacent optical modules of the same type can realize wireless communication, and jointly realize an optical fiber switching protection protocol.
Finally, the present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. An optical module apparatus, comprising: a light emitting sub-device with a narrow-band filter, a light receiving sub-device with a narrow-band filter, a transmitting circuit device and a receiving circuit device;
the transmitting circuit device is connected with the light emitting secondary device with the narrow-band filter;
the light emitting sub-device of the narrow-band filter is connected with the light receiving sub-device of the narrow-band filter;
the receiving circuit device is connected with the light receiving sub-device of the narrow-band filter.
2. A light module device as claimed in claim 1, characterized in that the light-emitting sub-assembly of the band-narrow filter is connected to the light-receiving sub-assembly of the band-narrow filter by means of a bridging fiber.
3. A light module device as claimed in claim 1, characterized in that the light emission sub-device of the band-narrow filter comprises:
the device comprises a light emitter, a first narrow-band filter, a first lens and a first glass capillary tube;
the light emitter sends an optical signal, and the optical signal sequentially passes through the first narrow-band filter, the first lens and the first glass capillary tube.
4. A light module device as claimed in claim 1, characterized in that the light-receiving sub-device of the band-narrow filter comprises:
the photoelectric detector, the second narrow-band filter, the second lens and the second glass capillary tube;
and the optical signal sequentially passes through the second glass capillary tube, the second lens, the photoelectric detector and the second narrow-band filter to reach the photoelectric detector.
5. An optical module device as claimed in claim 4, further comprising: an upper light coupling port;
the upper light coupling port is positioned in the second glass capillary.
6. An optical module device as claimed in claim 3, further comprising: a lower light coupling port;
the lower light coupling port is positioned in the first glass capillary.
7. The light module apparatus of claim 1, further comprising: a control circuit device;
the control circuit device is connected with the transmitting circuit device and the receiving circuit device.
8. An optical module device as claimed in claim 7, wherein the control circuitry is adapted for wireless communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474889.1U CN210168045U (en) | 2019-09-05 | 2019-09-05 | Optical module device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474889.1U CN210168045U (en) | 2019-09-05 | 2019-09-05 | Optical module device |
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| CN210168045U true CN210168045U (en) | 2020-03-20 |
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| CN201921474889.1U Active CN210168045U (en) | 2019-09-05 | 2019-09-05 | Optical module device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708118A (en) * | 2019-09-05 | 2020-01-17 | 深圳华喆仪器有限公司 | Optical module device and optical fiber capacity expansion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708118A (en) * | 2019-09-05 | 2020-01-17 | 深圳华喆仪器有限公司 | Optical module device and optical fiber capacity expansion system |
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