CN110518972A - A kind of optical fiber power monitoring of structures - Google Patents
A kind of optical fiber power monitoring of structures Download PDFInfo
- Publication number
- CN110518972A CN110518972A CN201810497001.XA CN201810497001A CN110518972A CN 110518972 A CN110518972 A CN 110518972A CN 201810497001 A CN201810497001 A CN 201810497001A CN 110518972 A CN110518972 A CN 110518972A
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- CN
- China
- Prior art keywords
- optical fiber
- power monitoring
- fiber
- fibre core
- grating
- 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.)
- Pending
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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
- G02B6/4286—Optical modules with optical power monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of optical fiber power monitoring of structures, it includes optical fiber and the photosensitive receiving element for monitoring light signal energy or power, the fiber grating with optical direction in an inclination angle is equipped in the fibre core of optical fiber, the part optical signals transmitted in fibre core are leaked out from the covering of optical fiber in the form of radiation mode after fiber grating reflects and received by photosensitive receiving element.The present invention utilizes the characteristic of fiber grating, and the power or energy monitoring to different wave length may be implemented, have the characteristics that structure is simple, at low cost.
Description
Technical field
The present invention relates to technical field of optical fiber communication more particularly to a kind of optical fiber power monitoring of structures.
Background technique
Currently used light transmission fiber power monitoring device, difference is broadly divided into following several in the way of spectral energy
Class: 1) coupler light splitting type is monitored as shown in Figure 1, being divided using fiber coupler to photodetector, disadvantage: cost
Height, (coupler) Insertion Loss is big, and volume is big；2) reflection beam splitting type is as shown in Fig. 2, in pairs to standard by two optical fiber processings of input and output
Straight device, and one is placed with partial mirror or film layer, the energy of transmission light splitting is then received using photodetector,
Disadvantage: matching requirements are high, and added losses are big, are not suitable for high power monitoring；3) covering light splitting type is as shown in figure 3, in optical fiber
Covering uplifting window mouth does not destroy the fibre cladding light splitting type of fiber core, disadvantage: complex process, rubbing down notch (loss is high),
Low efficiency.
Summary of the invention
In order to solve deficiency in the prior art, the purpose of the present invention is to provide simple types, optical fiber power at low cost
Monitoring of structures.
To achieve the above object, the invention adopts the following technical scheme:
A kind of optical fiber power monitoring of structures, the photosensitive receiving element including optical fiber and for monitoring light signal energy or power, institute
The fiber grating being equipped in the fibre core of optical fiber with optical direction in an inclination angle is stated, the part optical signals transmitted in fibre core are passed through
It is leaked out in the form of radiation mode from the covering of optical fiber after fiber grating reflection and is received by photosensitive receiving element.
The fiber grating is formed on fibre core using the inscription mode of phase mask plate.
The fiber grating being arranged on the fibre core is one group.
The fiber grating being arranged on the fibre core be it is more than two, difference group fiber gratings periods it is different.
The photosensitive receiving element is ccd detector or PD detector.
The fiber grating is chirp grating.
The photosensitive receiving element is CCD or PD detector array.
The invention adopts the above technical scheme has the advantages that
1, the fiber grating of required tilting realizes mass production using the inscription mode of phase mask plate, high-efficient,
It is at low cost.
2, the devices such as collimation lens or coupler are not introduced, not only the damage of made power (or energy) monitoring module
Consume small, and encapsulating structure is fairly simple, compact, it is small in size, be conducive to integrated development.
3, using the characteristic of fiber grating, the power or energy monitoring to different wave length may be implemented.
Detailed description of the invention
The present invention is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is the schematic diagram that coupler is divided scheme in the prior art；
Fig. 2 is the schematic diagram of reflection beam splitting scheme in the prior art；
Fig. 3 is the schematic diagram of covering light splitting type in the prior art；
Fig. 4 is the schematic diagram of the embodiment of the present invention 1；
Fig. 5 is the schematic diagram of the embodiment of the present invention 2；
Fig. 6 is the schematic diagram of the embodiment of the present invention 3.
Specific embodiment
As shown in one of Fig. 4-6, a kind of optical fiber power monitoring of structures of the present invention, including optical fiber and for monitoring optical signal energy
The photosensitive receiving element 3 of amount or power, the interior fiber grating 2 being equipped with optical direction in an inclination angle of the fibre core 1 of the optical fiber,
The part optical signals transmitted in fibre core 1 are leaked out in the form of radiation mode from the covering of optical fiber after the reflection of fiber grating 2
And received by photosensitive receiving element 3, according to the size and fluctuation of radiation mode energy, it can confirm the overall power and energy of system
The case where amount.
Fiber grating 2 is formed on fibre core 1 using the inscription mode of phase mask plate, to realize mass production, is imitated
Rate is high, at low cost.
Embodiment 1, as shown in figure 4, the fiber grating 2 being arranged on fibre core 1 is one group, photosensitive receiving element 3 is CCD detection
Device or PD detector.In the present embodiment, the optical direction of fiber grating 2 and fibre core 1 is in 45 °, is reflected using fiber grating 2, from
Optical fiber side separates part light intensity and is combined with the reception of photosensitive receiving element 3, forms the simple power monitor of structure.
Embodiment 2, on the basis of embodiment 1, as shown in figure 5, the fiber grating 2 being arranged on fibre core 1 be it is more than two,
The period of difference group fiber grating 2 is different.It is different according to the period of different groups of fiber gratings 2, multiple band of light can be monitored
The power or energy situation of signal.
Embodiment 3, on the basis of embodiment 1, as shown in fig. 6, fiber grating 2 is macrocyclic chirp grating, cooperation
CCD or PD detector array can monitor broadband optical signal power or energy situation.
Claims (7)
1. a kind of optical fiber power monitoring of structures, the photosensitive receiving element including optical fiber and for monitoring light signal energy or power,
It is characterized by: being equipped with the fiber grating with optical direction in an inclination angle in the fibre core of the optical fiber, transmitted in fibre core
Part optical signals are leaked out from the covering of optical fiber in the form of radiation mode after fiber grating reflects and by photosensitive receiving elements
It receives.
2. a kind of optical fiber power monitoring of structures according to claim 1, it is characterised in that: the fiber grating uses phase
The inscription mode of mask plate forms on fibre core.
3. a kind of optical fiber power monitoring of structures according to claim 1, it is characterised in that: the optical fiber being arranged on the fibre core
Grating is one group.
4. a kind of optical fiber power monitoring of structures according to claim 1, it is characterised in that: the optical fiber being arranged on the fibre core
Grating be it is more than two, difference group fiber gratings periods it is different.
5. a kind of optical fiber power monitoring of structures according to claim 3 or 4, it is characterised in that: the photosensitive receiving element
For ccd detector or PD detector.
6. a kind of optical fiber power monitoring of structures according to claim 1, it is characterised in that: the fiber grating is chirped light
Grid.
7. a kind of optical fiber power monitoring of structures according to claim 6, it is characterised in that: the photosensitive receiving element is
CCD or PD detector array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497001.XA CN110518972A (en) | 2018-05-22 | 2018-05-22 | A kind of optical fiber power monitoring of structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497001.XA CN110518972A (en) | 2018-05-22 | 2018-05-22 | A kind of optical fiber power monitoring of structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518972A true CN110518972A (en) | 2019-11-29 |
Family
ID=68622244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810497001.XA Pending CN110518972A (en) | 2018-05-22 | 2018-05-22 | A kind of optical fiber power monitoring of structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110518972A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020146206A1 (en) * | 2001-01-18 | 2002-10-10 | Carl Aleksoff | Signal analyzer using tapped optical fibers |
| CN1869747A (en) * | 2004-11-22 | 2006-11-29 | 东南大学 | Processing method for position and light of built-in tilt Bragg raster containing optical waveguide |
| US20070138417A1 (en) * | 2005-12-19 | 2007-06-21 | Fujitsu Limited | Optical submarine transmission system |
| CN103557937A (en) * | 2013-10-31 | 2014-02-05 | 中国科学院半导体研究所 | Laser power monitoring assembly, laser emission module with laser power monitoring assembly used and optical amplifier with laser power monitoring assembly used |
-
2018
- 2018-05-22 CN CN201810497001.XA patent/CN110518972A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020146206A1 (en) * | 2001-01-18 | 2002-10-10 | Carl Aleksoff | Signal analyzer using tapped optical fibers |
| CN1869747A (en) * | 2004-11-22 | 2006-11-29 | 东南大学 | Processing method for position and light of built-in tilt Bragg raster containing optical waveguide |
| US20070138417A1 (en) * | 2005-12-19 | 2007-06-21 | Fujitsu Limited | Optical submarine transmission system |
| CN103557937A (en) * | 2013-10-31 | 2014-02-05 | 中国科学院半导体研究所 | Laser power monitoring assembly, laser emission module with laser power monitoring assembly used and optical amplifier with laser power monitoring assembly used |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191129 |