CN211123364U - WDM optical module - Google Patents
WDM optical module Download PDFInfo
- Publication number
- CN211123364U CN211123364U CN201922373804.7U CN201922373804U CN211123364U CN 211123364 U CN211123364 U CN 211123364U CN 201922373804 U CN201922373804 U CN 201922373804U CN 211123364 U CN211123364 U CN 211123364U
- Authority
- CN
- China
- Prior art keywords
- optical signal
- optical
- filter
- chip
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model relates to an optoelectronic communication field especially relates to a WDM optical module, it includes the PCB board, and the PCB board is equipped with P L C chip, and the left side lower extreme of P L C chip is equipped with the installing port, the PCB board is equipped with n light signal processing unit 5 in the installing port, and light signal processing unit 5 includes t VCSE L and f PD, and t + f = n, n are for being greater than 1 natural number, 0 ≦ t, f, the middle part of P L C chip is equipped with the filter piece subassembly, and the filter piece subassembly includes n filter pieces with the installing position one-to-one, and the PCB board is equipped with fiber interface at the right-hand member of P L C chip, the utility model discloses a set up P L C chip and filter piece for multichannel light signal can combine and divide road.
Description
Technical Field
The utility model relates to an optoelectronic communication field especially relates to a WDM optical module.
Background
With the development of society, people have continuously increased requirements for information transmission from cables to optical fibers; the current communication requirement is higher and higher, and when the transmission capacity is large, a plurality of optical fibers are needed, so that the transmission line is overstaffed; secondly, when the optical fiber resources are insufficient, the user also wants to transmit more signal quantity through fewer optical fibers so as to reduce the usage amount of the optical fibers; therefore, it is required to develop an optical module capable of combining and splitting waves.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a WDM optical module, this WDM optical module has the function of combining the ripples, dividing the ripples, the transmission information volume of multiplicable optic fibre, reduce cost.
A WDM optical module comprises a PCB, wherein the PCB is provided with a P L C chip, the lower end of the left side of a P L C chip is provided with a mounting port, the PCB is provided with n optical signal processing units in the mounting port, each optical signal processing unit comprises t VCSE L and f PDs, t + f = n, n is a natural number greater than 1 and is 0 ≦ t and f, the middle of the P L C chip is provided with a filter assembly, each filter assembly comprises n filters which correspond to mounting positions one by one, and the right end of the P L C chip is provided with an optical fiber interface;
the filter is divided into: a first filter, a second filter, an nth filter;
the optical signal processing unit is divided into: a first optical signal unit, a second optical signal unit, an nth optical signal unit;
an ith optical path is formed between the ith optical signal unit and the ith filter plate, and 0< i ≦ n;
a main optical path is formed between the filter sheet assembly and the optical fiber interface;
when the tth optical signal unit is VCSE L, an optical signal sent by VCSE L is projected to a tth filter plate through a tth optical path, and when t =1, the optical signal enters a main optical path through the 1 st filter plate and is transmitted to an optical fiber interface;
when the mth optical signal unit is a PD, an optical signal transmitted by the optical fiber interface enters the optical filter assembly through the main optical path and is projected to the first filter, and when m =1, the optical signal is directly projected by the first filter into the 1 st optical path and is finally received by the PD; when m is less than 1 and less than n, the optical signal is transmitted to the second filter segment from the first filter segment in sequence; finally, the m-th filter plate projects into the m-th optical path and is received by the PD; t and m are both natural numbers.
Further, the P L C chip is coupled with the optical signal processing unit, and the distance between the P L C chip and the optical signal processing unit 5 is less than 0.2 mm.
Furthermore, the P L C chip is provided with a 45-degree reflection end face and a vertical light transmission face, when the optical signal processing unit 5 is a VCSE L, an optical signal emitted by the VCSE L directly projects into the P L C chip through the vertical light transmission face and is reflected to a corresponding filter plate through the 45-degree reflection end face, and when the optical signal processing unit is a PD, the corresponding filter plate projects the optical signal to pass through the P L C chip to reach the 45-degree emission end face and then pass through the vertical light transmission face.
Furthermore, the wavelengths of the optical signals corresponding to the optical signal processing units are all different.
The beneficial effects of the utility model are that, the utility model discloses a set up P L C chip and filter for multichannel light signal can combine and divide the way.
Drawings
Fig. 1 is a schematic side view of the present embodiment.
Fig. 2 is a schematic top view of the embodiment shown in fig. 1.
The dashed lines in the figure are the light paths.
The reference numerals include:
1-PCB board, 2-P L C chip, 3-filter, 4-optical fiber interface, 5-optical signal processing unit, 21-45 degree reflection end face, 22-vertical light transmission face and 23-groove.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. As shown in fig. 1-2.
The embodiment discloses a WDM optical module which comprises a PCB (printed Circuit Board) 1, wherein the PCB 1 is provided with a P L C chip 2, the lower end of the left side of the P L C chip 2 is provided with a mounting port, the PCB 1 is internally provided with n optical signal processing units 5, each optical signal processing unit 5 comprises t VCSE L and f PDs, t + f = n, n is a natural number greater than 1 and is 0 ≦ t and f, the middle part of the P L C chip 2 is provided with a filter assembly, each filter assembly comprises n filters 3 in one-to-one correspondence with mounting positions, and the right end of the P L C chip 2 of the PCB 1 is provided with an optical fiber interface 4;
the filter 3 is divided into: a first filter, a second filter, an nth filter;
the optical signal processing unit 5 is divided into: a first optical signal unit, a second optical signal unit, an nth optical signal unit;
an ith optical path is formed between the ith optical signal unit and the ith filter plate, and 0< i ≦ n;
a main optical path is formed between the filter assembly and the optical fiber interface 4;
when the tth optical signal unit is VCSE L, an optical signal emitted by VCSE L is projected to a tth filter plate through a tth optical path, and when t =1, the optical signal enters a main optical path through the 1 st filter plate and is transmitted to an optical fiber interface 4;
when the mth optical signal unit is a PD, an optical signal transmitted by the optical fiber interface 4 enters the optical filter assembly through the main optical path and is projected to the first filter, and when m =1, the optical signal is directly projected by the first filter into the 1 st optical path and is finally received by the PD; when m is less than 1 and less than n, the optical signal is transmitted to the second filter segment from the first filter segment in sequence; finally, the m-th filter plate projects into the m-th optical path and is received by the PD; t and m are both natural numbers.
The technical scheme includes that the combination and the division of optical signals are realized through the combination of a P L C (planar optical waveguide) and a filter plate assembly, when the optical signals are transmitted outwards, the line of the optical signals is changed through refraction, reflection and transmission of the optical signals by the filter plate, the s-th filter plate combines the optical signals of the s-th optical path and the optical signals transmitted by the (s + 1) -th filter plate and transmits the combined optical signals to the (s-1) -th filter plate in a unified mode, finally the 1-th filter plate transmits the combined optical signals to an optical fiber interface 4 through a main optical path, s is a natural number, when the optical signals are received, the s-th filter plate divides the received optical signals into two paths of signals, one path of the received optical signals is transmitted to the PD (s + 1) second optical processing unit through the s-th optical path, the other path of the received optical signals is transmitted to the (s + 1) -th filter plate, the (s + 1) -th filter plate divides the optical signals into two paths of the received optical signals to form two paths of signals, one path of the received optical signals is transmitted to the (s + 1) -th optical processing unit (s + 1) -th filter plate through the optical path, the filter plate, the third optical processing unit (s + 1), the optical path of the received optical signals can transmit the received optical signals to the third optical signals to the filter plate, the third optical processing unit, the optical signal to the optical signal, the.
Further, the P L C chip 2 is coupled with the optical signal processing unit 5, and the distance between the P L C chip 2 and the optical signal processing unit 5 is less than 0.2 mm.
In order to reduce the interference of the optical signal from the outside, the technical scheme is to couple the P L C chip 2 with the optical signal processing unit 5 to reduce the optical path.
Furthermore, the P L C chip 2 is provided with a 45-degree reflection end face 21 and a vertical light transmission face 22, when the optical signal processing unit 5 is VCSE L, an optical signal emitted by the VCSE L is directly projected into the P L C chip 2 through the vertical light transmission face 22 and is reflected to a corresponding filter through the 45-degree reflection end face 21, and when the optical signal processing unit 5 is PD, the corresponding filter projects the optical signal to pass through the P L C chip 2 to reach a 45-degree emission end face and then passes through the vertical light transmission face 22.
The 45-degree reflecting end face 21 is arranged, and a total reflection optical path is adopted, so that the loss of optical signals is avoided.
Further, the wavelengths of the optical signals corresponding to the optical signal processing unit 5 are all different.
The optical signal processing unit 5 transmits or receives optical signals with different wavelengths, so that the optical signal processing unit 5 processes the optical signals.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (4)
1. A WDM optical module is characterized by comprising a PCB, wherein the PCB is provided with a P L C chip, the lower end of the left side of the P L C chip is provided with a mounting port, the PCB is provided with n optical signal processing units in the mounting port, each optical signal processing unit comprises t VCSE L and f PDs, t + f = n, n is a natural number greater than 1 and is less than or equal to 0 t and f, the middle of the P L C chip is provided with a filter assembly, each filter assembly comprises n filters corresponding to mounting positions one by one, and the right end of the P L C chip is provided with an optical fiber interface;
the filter is divided into: a first filter, a second filter, an nth filter;
the optical signal processing unit is divided into: a first optical signal unit, a second optical signal unit, an nth optical signal unit;
an ith optical path is formed between the ith optical signal unit and the ith filter plate, and 0< i ≦ n;
a main optical path is formed between the filter sheet assembly and the optical fiber interface;
when the tth optical signal unit is VCSE L, an optical signal sent by VCSE L is projected to a tth filter plate through a tth optical path, and when t =1, the optical signal enters a main optical path through the 1 st filter plate and is transmitted to an optical fiber interface;
when the mth optical signal unit is a PD, an optical signal transmitted by the optical fiber interface enters the optical filter assembly through the main optical path and is projected to the first filter, and when m =1, the optical signal is directly projected by the first filter into the 1 st optical path and is finally received by the PD; when m is less than 1 and less than n, the optical signal is transmitted to the second filter segment from the first filter segment in sequence; finally, the m-th filter plate projects into the m-th optical path and is received by the PD; t and m are both natural numbers.
2. A WDM optical module according to claim 1, wherein said P L C chip is coupled with the optical signal processing unit, the distance between the P L C chip and the optical signal processing unit is less than 0.2 mm.
3. A WDM optical module according to claim 1, wherein the P L C chip has 45 degree reflection end face and vertical transmission face, when the optical signal processing unit is VCSE L, the VCSE L sends out the optical signal and directly projects into the P L C chip through the vertical transmission face, and reaches the corresponding filter through 45 degree reflection end face reflection, when the optical signal processing unit is PD, the corresponding filter projects the optical signal through the P L C chip to reach 45 degree emission end face, and then passes through the vertical transmission face.
4. A WDM optical module according to claim 1, wherein: the optical signal processing units have different corresponding optical signal wavelengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373804.7U CN211123364U (en) | 2019-12-26 | 2019-12-26 | WDM optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373804.7U CN211123364U (en) | 2019-12-26 | 2019-12-26 | WDM optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211123364U true CN211123364U (en) | 2020-07-28 |
Family
ID=71707283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922373804.7U Active CN211123364U (en) | 2019-12-26 | 2019-12-26 | WDM optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211123364U (en) |
-
2019
- 2019-12-26 CN CN201922373804.7U patent/CN211123364U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107966773B (en) | Optical transmitter sub-module and optical module | |
| CN110024308B (en) | Bidirectional optical component, optical network unit, optical line terminal and passive optical network system | |
| CN107065083B (en) | Multichannel optical transceiving integrated module | |
| US10732353B2 (en) | Wavelength multiplexing optical module, wavelength demultiplexing optical module, and optical module | |
| US6963683B2 (en) | System and method for a packaging a monitor photodiode with a laser in an optical subassembly | |
| CN102884462A (en) | Opto-electronic transceiver having housing with small form factor | |
| TWI451143B (en) | Optical interconnect fabrics and optical switches | |
| CN108873197B (en) | Optical module | |
| CN217639658U (en) | Optical transceiver module | |
| EP1510842A1 (en) | Optical interconnect system and method of communications over an optical backplane | |
| WO2018157767A1 (en) | Optical module having multi-wavelength coexistence | |
| CN102597839A (en) | Optoelectronic device for bidirectionally transporting information through optical fibers and method of manufacturing such a device | |
| WO2020029739A1 (en) | Optical module | |
| CN109932780B (en) | Optical wavelength division multiplexer, optical module and optical module | |
| CN211123364U (en) | WDM optical module | |
| CN108508546A (en) | A kind of optical module | |
| CN113296199A (en) | Single-fiber bidirectional optical assembly and optical module | |
| CN216052307U (en) | Light receiving device | |
| CN210605101U (en) | Multipath wavelength demultiplexing light receiving component based on optical waveguide | |
| CN210835348U (en) | Single-fiber bidirectional transmission optical module | |
| CN213302575U (en) | Optical structure | |
| GB2384929A (en) | Integrated optical engine control system | |
| CN110941051A (en) | WDM optical module and manufacturing method | |
| EP0593287B1 (en) | Electrooptical connector in an optical bus system | |
| CN113448022A (en) | Optical transmitter, optical module, optical transceiver, and optical communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |