CN1267759C - Module used for optical signal transmission - Google Patents
Module used for optical signal transmission Download PDFInfo
- Publication number
- CN1267759C CN1267759C CNB02149987XA CN02149987A CN1267759C CN 1267759 C CN1267759 C CN 1267759C CN B02149987X A CNB02149987X A CN B02149987XA CN 02149987 A CN02149987 A CN 02149987A CN 1267759 C CN1267759 C CN 1267759C
- Authority
- CN
- China
- Prior art keywords
- optical waveguide
- module
- optical
- wavelength
- light
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4256—Details of housings
- G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4256—Details of housings
- G02B6/426—Details of housings mounting, engaging or coupling of the package to a board, a frame or a panel
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4256—Details of housings
- G02B6/4262—Details of housings characterised by the shape of the housing
- G02B6/4265—Details of housings characterised by the shape of the housing of the Butterfly or dual inline package [DIP] type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
Abstract
The present invention relates to an optical signal transmission module which comprises a transmitting or receiving element arranged on a supporting body and at least one optical waveguide matched with the transmitting or receiving element, wherein both ends of the optical waveguide respectively represent an optical output and an optical input of the module. A wavelength selecting element is arranged or formed in the optical waveguide, and the aim of the wavelength selecting element is to input the light transmitted by the transmitting or receiving element in a specific optical data channel into the optical waveguide or output the light received from the transmitting or receiving element in the specific optical data channel from the optical waveguide. The light is input into the optical waveguide or output from the optical waveguide basically in a right angle with the optical axis of the optical waveguide.
Description
Technical field
The present invention relates to a kind of optical signal transmission module and a kind of transmission and/or receiving trap that contains this module.
Background technology
Bi-directional light data service module for example can adopt star structure operation, and its method of operation is for to send data stream in the opposite direction, i.e. direction (upstream) and other receiver directions (downstream) are put in center feedback in the optical fiber.Therefore, identical or different wavelength can be respectively applied for each data channel.For this reason, need improve constantly data rate, thereby cost is constantly reduced.For this purpose, adopted the wavelength-division multiplex method especially.Method in view of the above, multi-wavelength's light signal send on an optical fiber simultaneously.
In the case, must in receiver, separate once more by the light signal to a plurality of wavelength.In addition, the light signal from receiver should transmit towards feedback point direction.Like this, just need a plurality of electric light modules that have some optical ports.
United States Patent (USP) 4,767,171 (seeing European patent application EP 238977) have disclosed a kind of bidirectional communication network transmission/receiver module that adopts free beam optical device, wherein between a laser diode and an optic fibre end, some spherical lenses have been arranged at a certain distance, with the termination of laser focusing at optical fiber.Be furnished with a wavelength selecting beam splitter that is used for wavelength separated between the spherical lens; Its wavelength that this beam splitter sends optical fiber end is different from the light of optical maser wavelength and separates and deliver to a detecting device or receiving element from penetrates the path.
A shortcoming of the module of above-mentioned representative prior art is, need carry out some very complicated installation step continuously, and wherein each step all can be consumed a large amount of resources.In this assembling process, if a step is unsuccessful, the completing steps of front also must be abandoned.
Summary of the invention
The purpose of this invention is to provide a kind of optical signal transmission module, it can overcome the above-mentioned deficiency and the defective of this type of existing apparatus and method, can become a kind of transceiver that is used for two data channels at least again; This module is simple compact module design, and low cost of manufacture is good in economic efficiency.
In view of above-mentioned and other purpose, optical signal transmission module of the present invention is configured to be plugged on other modules of the same type, and comprises following assembly:
A supporting body;
The element that is used to peg graft;
At least one transmission or receiving-member are installed on this supporting body;
At least one optical waveguide, it has an optical axis, first end and second end of representing the output of module light of representing the input of module light; And
A wavelength that is arranged in the above-mentioned optical waveguide is selected element, and it is configured to the light of a specific light data channel is gone into optical waveguide from optical waveguide coupled to the light beam that sends or receiving element maybe will send or receiving-member sends;
Whereby, light can inject or from being coupled out with the vertical substantially optical waveguide of optical waveguide optical axis.
In other words, the objective of the invention is to provide at least one optical waveguide in above-mentioned module, the two ends of this optical waveguide are represented a light input and a light output of module respectively, and its supporting transmission or receiving element is respectively arranged.Arrange in this optical waveguide or be formed with a wavelength to select element, be used for light that transmission or receiving element with a specific light data channel send or receive and under the situation that does not influence other data channels, inject or export from this optical waveguide.In the case, the light that injects or export from optical waveguide and the optical axis of optical waveguide meet at right angles basically.
" vertical substantially " this to be expressed in this expression, and light drops on wavelength and selects the angle on the element can make its deviation advance optical waveguide, and vice versa.
It is a kind of to use the design concept of a kind of optics " T shape element " as foundation that solution of the present invention provides, and according to this design concept, a continuous light waveguide provides a level " T shape bar rod ".The light and the optical waveguide optical axis that inject or export from the optical waveguide between light input and light output meet at right angles basically.The interface of this module is that two optical interfaces that are each positioned at the optical waveguide two ends and one are used at transmission or receiving element and the electrical interface that electrically contacts between the printed circuit board specifically.
The invention still further relates to a kind of transmission and/or receiving trap that is used for the transmission of two data channels at least and/or receives light, it comprises the module of the present invention that a plurality of front and back are arranged, wherein a plurality of modules are connected by grafting.
Preferably, one of described a plurality of modules comprise the optical fiber connecting elements; By this connecting elements, optical fiber can be coupled with at least one optical waveguide of a described module.Each separate modular can make up this fact as required and mean, according to practical application, the data channel that the present invention can be any requirement in principle provides multiplexed and/or the multichannel decomposition, and wherein light injects or output with a wavelength in each module.The combination option of each separate modular or " T shape element " also can allow data speed is upgraded or to dispose according to the specific needs in client future.
Another advantage of the present invention is that the resource of each separate modular consumption is considerably less, and low cost of manufacture is good in economic efficiency.Out of order module can be changed separately, does not influence the function of whole transmission and/or receiving trap.
Additional feature of the present invention be at least one optical waveguide be arranged in the optical waveguide body or on, and this optical waveguide body be installed in send or the receiving element supporting body on.This project organization makes module placement very compact.In addition, module has also disposed the package casing of anti-external disturbance.
Module of the present invention can advantageously be plugged on other modules.For this reason, to have perforate preferable for the optical waveguide body; By these perforates, can use centring pin that the optical waveguide body is connected on the optical waveguide body of other modules.Like this, a plurality of modules of the present invention can be plugged on together easily, constitute a required transmission and/or receiving trap.
Another feature of the present invention is, it is a wavelength-selective mirror that is arranged in the optical waveguide or is made of optical waveguide that wavelength is selected element.For example, wavelength-selective mirror can form on a push-in type element that pushes in the optical waveguide housing, and its preferred angle is about 45 °; This selection mirror interdicts optical waveguide in this process.
The present invention also can constitute this wavelength by the optical waveguide that forms two optical waveguide section and select element; Above-mentioned two optical waveguide section respectively have at least one inclined end face, and optical waveguide section is axially connected mutually at the inclined end face place.In the case, be coated with a wavelength on the butt joint end face of optical waveguide section and select light filter, like this, the light of specific light data channel can be by injecting with the refraction of the angled inclined end face of optical waveguide optical axis or exporting from the optical waveguide of this light data channel.
Select in another specific embodiment of element at wavelength, wavelength selects element to be made of a Fiber Bragg Grating FBG in optical waveguide medium dip operation.In the case, other laser beam especially twice intersection laser can cause occurring in the optical waveguide periodic index of refraction variation, thereby can cause a kind of optical grating construction of selecting to carry out light output or injection according to wavelength.
The another kind of method that can provide wavelength to select element is to arrange a groove and cover a wavelength on groove to select coating in optical waveguide.
In a preferable module improvement project, transmission or receiving element supporting body have a shell that can effectively prevent external disturbance that is used to install the optical waveguide body.Supporting body is preferable to be had one be used for the contact that is connected that is electrically connected between transmission or receiving-member and a printed circuit board, and it is formed by for example lead frame.
In one embodiment, being positioned at the intrinsic optical waveguide of optical waveguide is the integrated optical conductor that a kind of employing silicon upper glass (glass on silicon) technology is made.Yet optical waveguide can also be a kind of optical fiber, especially a kind of single-mode fiber, and the optical waveguide body can be made of plastics.
The present invention also comprises: a plurality of optical waveguides can be arranged in parallel in the optical waveguide body and each optical waveguide has a supporting transmission or receiving element, so that module can be connected with an optical waveguide array.
Though having carried out diagram with concrete optical signal transmission modular form in this article, the present invention introduces and explanation, yet, the inventor does not wish to limit the invention to above-mentioned details, because without departing from the premise in the spirit of the present invention, can in the equivalent scope of described claim, carry out various improvement and structural change.
Yet,, can understand operating structure of the present invention and method and extra purpose and advantage thereof best if read following introduction about specific embodiment in conjunction with the drawing of enclosing.
Description of drawings
Fig. 1 a is the side schematic view of an optical module of the present invention;
Fig. 1 b is the plan view of module shown in Fig. 1 a;
Fig. 2 is the coupling synoptic diagram between transmission in the module of the present invention or receiving element and the optical waveguide;
Fig. 3 is a plurality of module combinations synoptic diagram of the present invention in a transmission and/or the receiving trap;
Fig. 4 is the optical waveguide body cross section view of module of the present invention.
Embodiment
, at first be Fig. 1 a and Fig. 1 b now, from these two figure, can see a module of the present invention that has an optical waveguide body 1, wherein optical waveguide 2 level run in optical waveguide body 1 in detail referring to accompanying drawing.Optical waveguide 2 has one first light to input or output 21 at the one end, has one second light to input or output 22 at its second end.In the case, the two ends of optical waveguide 2 terminate on the optical waveguide body 1 with planar fashion.
In addition, arrange in the optical waveguide 2 or constructed a wavelength and selected element.About this element, Fig. 2 has carried out the diagram introduction and has also done more detailed explanation with reference to Fig. 2 hereinafter.This wavelength selects element with a certain wavelengths light to be exported from optical waveguide 2, and light is transmitted (or vice versa) on the direction of transmission or receiving element; Its light for other wavelength is transparent, thereby can not impact this light.
In the diagram specific embodiment, optical waveguide body 1 is cube, and it is installed in by lower flat 11 on the face 31 on top of supporting body 3.This is external except optical waveguide is installed, and supporting body 3 also is used for holding transmission or the receiving element that carries out optically-coupled with optical waveguide 2; About these, hereinafter do more detailed description with reference to Fig. 2.The electrical connection contact that it is lead frame 4 that supporting body 3 has a form, its effect are with transmission or receiving element is connected on the printed circuit board (PCB) that does not mark in the accompanying drawing and the between formation electrically contacts.
Dispose the maintenance perforate 12 that to insert centring pin 5 on the end face of optical waveguide body 1.Centring pin 5 can make a plurality of modules be plugged on together and make each optical waveguide 2 mutual centering.
Certainly, should be understood that the optical waveguide body can also have other shapes except that cube.Unique substantial feature is that this physical efficiency of optical waveguide is fixed optical waveguide, and makes in this process between optical waveguide and transmission or the receiving-member and produce optically-coupled.
Module shown in the figure is an optics sub-portfolio body, can check separately this assembly in advance, and can constitute a compact unit of being made up of transmission or receiving element, supporting body and optical waveguide.
About the optically-coupled between transmission or receiving element in the module of the present invention and the optical waveguide 2, hereinafter introduced with reference to Fig. 2.Also marked a transmitting element among Fig. 2, be specially a laser diode 8, it is positioned on the supporting body 3 and can be connected with a printed circuit board by connecting contact 4.
Wavelength shown in the synoptic diagram selects element 9 to be arranged in the course of the beam in the optical waveguide 2 with the 45 degree.The characteristics of element 9 are to be that the light beam of λ 3 is gone into or exported from optical waveguide with the right angle with specific wavelength; For wavelength is that other light of λ 1, λ 2 then can all pass basically; Also can say so, wavelength is only " walking around " of λ 3.Therefore, whenever light when optical waveguide 2 is injected or send, this wavelength selects element just to produce one and be a unique wavelength period that matches with a data path.
The optical axis A of laser diode 8 is normal (perpendicular) to the optical axis B operation of optical waveguide 2.Arranged at right angles is fine if any little deviation (until 15 °) and allows.Crucial problem is that light can inject or effectively from optical waveguide 2 outputs.
Wavelength selects element 9 that various structural arrangements can be arranged.For example, it can be the laterally Fiber Bragg Grating FBG of output of a specific permission.In this type of grating, twice intersection laser can cause change of refractive in the optical waveguide, thereby causes the light wavelength selective refraction.In addition, to select element can be a wavelength-selective mirror that places in the optical waveguide body 1 and optical waveguide 2 is interdicted for this wavelength.It can also be groove that has wavelength selection coating in the optical waveguide that this wavelength is selected element, or one is equipped with an inclined end face and scribbles the waveguide segment that wavelength is selected coating.
For preventing that the course of the beam between optical waveguide 2 and the laser diode 8 is produced interference, optical waveguide body 1 and/or supporting body 3 are designed in any case all can be transparent for various wavelength in the course of the beam zone, or suitable otch is set in this zone, wherein the latter is filled with the optical transparency filling compound.Embodiment illustrated in fig. 2 only is schematic illustrations.
Figure 3 shows that a kind of transmission of the present invention and/or receiving trap, three separate modular 2a wherein, 2b, 2c (seeing Fig. 1 a and 1b) is plugged on together.In the case, connect by centring pin 5 between each separate modular.Interconnected module 2a, 2b is connected with optical fiber 7 by an optical connector 6 that can have centring pin 61 with 2c, and light signal can be sent to both direction.
Optical waveguide 2 by each separate modular (sees that the optical waveguide that Fig. 1 a) constitutes passes interconnected module 2a, 2b and 2c.Thus, module 2a, 2b and 2c can receive the light signal of a plurality of data channels by optical fiber 7, and/or light signal can be sent to optical fiber 7 from above-mentioned module.Like this, above-mentioned module can constitute any required multiplexed/multichannel and decomposes and arrange.
In embodiment illustrated in fig. 3, the module 2c on the right has a transmitting element, and the light of this element selects light filter with first wavelength X, 3 injection fibres 7 by the wavelength in the module 2c.Other module 2a and 2b respectively have a receiving element, in the case, light selects light filter to export the receiving element of module 2b to second wavelength X 2 by the response wave length among module 2a and the 2b, and can export on the receiving element of module 2a with wavelength lambda 1 on the basis that wavelength is selected.
In the case, wavelength is that the light signal of λ 3 is injected into optical fiber 7, and wavelength is that the light signal of λ 1 and λ 2 separates by output from optical fiber 7 and according to its wavelength.Yet as long as suitable light filter is arranged, the layout of module can change.
Figure 4 shows that a module optical waveguide body sectional view of the present invention.Optical waveguide body 1 can be made by plastics or silicon.Optical waveguide 2 can be the glass fibre that inserts in the optical waveguide body 1.Yet they can also be optics conglomerate (for example silicon upper glasses).
Shown in Figure 4 at first is the maintenance perforate 12 of centring pin 5.In addition, Fig. 4 has also schematically marked an optical waveguide zone 13, wherein can arrange an optical waveguide or a plurality of optical waveguides that are arranged in parallel.If a plurality of optical waveguides are arranged, understand transmission or the receiving element 9 that disposes respective numbers on the supporting body 3 or in the array.
Claims (16)
1. optical signal transmission module, wherein this module is configured to be plugged on other modules of the same type, comprising:
A supporting body;
The element that is used to peg graft;
At least one is installed in transmission or receiving element on the above-mentioned supporting body;
At least one has an optical axis, first end and an optical waveguide of representing second end of module light output of representing the input of module light; And
Wavelength is selected element, is arranged in the above-mentioned optical waveguide, and is configured to light with a specific light data channel from described optical waveguide coupled to described transmission or receiving element, or the light beam that described transmission or receiving element send is gone into described optical waveguide;
By this module, light can inject or exports from described optical waveguide with the angle that is basically perpendicular to described optical waveguide optical axis.
2. module according to claim 1, wherein said optical waveguide are arranged in the optical waveguide body.
3. module according to claim 1, wherein said optical waveguide are arranged on the optical waveguide body.
4. module according to claim 1, it also comprises an optical waveguide body that is installed on the described supporting body.
5. module according to claim 4, wherein said optical waveguide body have perforate and described optical waveguide body can being connected on the optical waveguide body of other modules by described perforate and centring pin.
6. it is a wavelength-selective mirror that is installed in the described optical waveguide that module according to claim 1, wherein said wavelength are selected element.
7. module according to claim 1, it is a wavelength-selective mirror that is made of jointly described optical waveguide that wherein said wavelength is selected element.
8. module according to claim 1, it is a Fiber Bragg Grating FBG that wherein said wavelength is selected element.
9. module according to claim 4, wherein said supporting body have a shell and described optical waveguide body to be installed on this shell.
10. module according to claim 1, wherein said supporting body have one and are used for setting up the contact that is connected that is electrically connected between described transmission or receiving-member and the printed circuit board.
11. module according to claim 1, wherein said optical waveguide are an integrated optical conductor.
12. module according to claim 1, wherein said optical waveguide are an optical fiber.
13. module according to claim 1, wherein said optical waveguide are a single-mode fiber.
14. module according to claim 4, wherein a plurality of optical waveguides are arranged in parallel in the described optical waveguide body and have a supporting transmission or receiving-member separately.
15. a transmission and/or a receiving trap that is used for the transmission of two data channels at least and/or receives light, it comprises the described module of claim 1 that a plurality of front and back are arranged, wherein a plurality of modules are connected by grafting.
16. transmission according to claim 15 and/or receiving trap, one of wherein said a plurality of modules comprise the optical fiber connecting elements; By this connecting elements, optical fiber can be coupled with at least one optical waveguide of a described module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02149987XA CN1267759C (en) | 2002-11-01 | 2002-11-01 | Module used for optical signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02149987XA CN1267759C (en) | 2002-11-01 | 2002-11-01 | Module used for optical signal transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1493894A CN1493894A (en) | 2004-05-05 |
| CN1267759C true CN1267759C (en) | 2006-08-02 |
Family
ID=34233821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02149987XA Expired - Fee Related CN1267759C (en) | 2002-11-01 | 2002-11-01 | Module used for optical signal transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1267759C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102511137B (en) * | 2011-12-02 | 2014-09-17 | 华为技术有限公司 | Optical transceiver, passive optical network system and device thereof |
| CN103472539B (en) * | 2013-09-04 | 2016-06-15 | 中国电子科技集团公司第八研究所 | A kind of method of hollow light slip ring and transmission optical signal thereof |
-
2002
- 2002-11-01 CN CNB02149987XA patent/CN1267759C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1493894A (en) | 2004-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100472258C (en) | Optical wavelength division multiplexer/demultiplexer having preformed passively aligned optics | |
| US5799120A (en) | Waveguide type wavelength multiplexing/demultiplexing module | |
| US8540437B2 (en) | Multi-wavelength optical transmitting and receiving modules | |
| CN110998391A (en) | Optical coupling structure | |
| EP0699932B1 (en) | Fiber bundle interconnect and method of making same | |
| CN1659461A (en) | Systems, methods and apparatus for bi-directional optical transceivers | |
| US4872739A (en) | Optical busbar | |
| CN108776373A (en) | Optical module | |
| JP4872941B2 (en) | Optical communication module and method of using the same | |
| KR20110026368A (en) | Multi-wavelength optical transmitting and receiving module | |
| US20240126022A1 (en) | System and method for optical communications using cwdm ferrule mated to a non-cwdm ferrule | |
| CN1267759C (en) | Module used for optical signal transmission | |
| US6789957B1 (en) | High-density optoelectronic transceiver assembly for optical communication data links | |
| CN201438229U (en) | Parallel optical module | |
| CN211348748U (en) | Optical module structure | |
| US6614963B2 (en) | Module for optical signal transmission | |
| CN103217755A (en) | Optical module and method for producing the same | |
| US7653271B2 (en) | Distributed feedback laser array | |
| CN204903820U (en) | Substrate, big unit laser array and array modules , light detector array and array modules , optic fibre transmission and receiving module | |
| Johnck et al. | 8/spl times/8 POF based interchip interconnection with 2.5 Gbit/s per channel data transmission | |
| JP2003315604A (en) | Optical connector, optical wiring system, and method of manufacturing the optical connector | |
| CN100395969C (en) | Optical add and drop multiplexer (OADM) | |
| JPH10160959A (en) | Optical multiplexing and demultiplexing structure and optical multiplexing and demultiplexing module using the same | |
| EP0237236A2 (en) | Optical conductors | |
| GB2237949A (en) | Optical networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |