CN203883834U - Optical device assembly applied to PON network optical power meter - Google Patents
Optical device assembly applied to PON network optical power meter Download PDFInfo
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- CN203883834U CN203883834U CN201420235300.3U CN201420235300U CN203883834U CN 203883834 U CN203883834 U CN 203883834U CN 201420235300 U CN201420235300 U CN 201420235300U CN 203883834 U CN203883834 U CN 203883834U
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Abstract
The utility model discloses an optical device assembly applied to a PON network optical power meter. The optical device assembly comprises a three-wavelength optical coupler. The three-wavelength optical coupler has a 90% optical signal transmission end and a 10% optical signal transmission end, the 90% optical signal transmission end comprises a first network port and a second network port, the 10% optical signal transmission end has a first detection end and a second detection end, the first detection end is directly connected with a first photoelectric detector, the second detection end is connected with a wavelength division multiplexing device, the wavelength division multiplexing device has a 1490 nm wavelength output end and a 1550 nm two-wavelength output end, the 1490 nm wavelength output end is connected with a second photoelectric detector, and the 1550 nm two-wavelength output end is connected with a third photoelectric detector. The optical device assembly is advantageous in that all optical indexes of a PLC optical branching device can be tested through use of a set of equipment in one time, a test report can be automatically generated according to needs, tedious manual data logging can be prevented, convenience of product management can be realized, and high detection efficiency and improved traceability are achieved.
Description
Technical field
The utility model relates to a kind of optical communication device, specifically a kind of optical device assembly that is applied to PON network light power meter.
Background technology
Current, China FTTX (Optical Access Network) builds progressively and launches, the thinking that San great operator and Broadcast and TV system have all been determined " accelerate light entering and copper back, advance Access Network strategic transformation ", realizes multimedia transmission and PDS (comprehensive wiring system) schemes such as FTTC (Fiber To The Curb), FTTB (Fiber To The Building), FTTH (fiber-to-the-home front yard), FTTD (fiber to the desk), the integration of three networks (voice network, data network, cable television network).PON is the general title of passive optical network access technology.Mainly contain at present GPON(ITU agreement) and EPON(IEE agreement) technology of two kinds of different agreements.PON equipment comprises the OLT of local side, the passive light-dividing device ODN of the ONU of client and connection OLT and ONU; The light access technology of the epoch PON of light entering and copper back will progressively replace traditional electric access technology now.And in FTTX/PON network, General Requirements is three wavelength in measuring optical fiber simultaneously, 1490nm and 1550nm downstream wavelength and the up wavelength of 1310nm, in test light power process, be all to access respectively different equipment traditionally, each is tested, operation inconvenience, efficiency is low, has increased the cost of equipment.
Summary of the invention
The technical problems to be solved in the utility model is to provide and a kind ofly can completes the optical device assembly that is applied to PON network light power meter that different wave length detects by same equipment is disposable.
In order to solve the problems of the technologies described above, the optical device assembly that is applied to PON network light power meter of the present utility model, comprise three-wavelength optical coupler, three-wavelength optical coupler has 90% optical signal transmission end and 10% optical signal transmission end, 90% optical signal transmission end comprises a first network port that can be connected with the OLT port of PON network and a second network port that can be connected with the ONU port of PON network, 10% optical signal transmission end has the first test side and second test side that can draw second network port optical signal that can draw first network port optical signal, the first test side directly connects the first photodetector, the second test side connects a wavelength division multiplexer, wavelength division multiplexer has 1490nm wavelength output and two wavelength outputs of 1550nm, 1490nm wavelength output connects the second photodetector, two wavelength outputs of 1550nm connect the 3rd photodetector.
Described the first photodetector, the second photodetector, the 3rd photodetector are PIN pipe.
Described the first photodetector, the second photodetector, the 3rd photodetector are the photodetector of same light power meter.
Described wavelength division multiplexer is high isolation wavelength-division multiplexer.
The utility model has the advantage of:
Due to the optical device assembly being formed by three-wavelength optical coupler and wavelength division multiplexer between tested network and light power meter that is connected to arranging, can use a set of equipment that all optical index disposable tests of PLC optical branching device are completed, and can automatically generate as required test report, remove the loaded down with trivial details of manual entry data from, can also avoid wrong logging data, facilitate the management of product, detection efficiency is high, has improved trackability.
Accompanying drawing explanation
Fig. 1 is the theory diagram that the utility model is applied to the optical device assembly of PON network light power meter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the optical device assembly of the PON of being applied to network light power meter of the present utility model is described in further detail.
As shown in the figure, the optical device assembly that is applied to PON network light power meter of the present utility model, comprise three-wavelength optical coupler, the three-wavelength optical coupler of selecting is 2*2 three-wavelength optical coupler (splitting ratio 10/90), three-wavelength optical coupler has 90% optical signal transmission end and 10% optical signal transmission end, 90% optical signal transmission end comprises a first network port that can be connected with the OLT port of PON network and a second network port that can be connected with the ONU port of PON network, 10% optical signal transmission end has the first test side and second test side that can draw second network port optical signal that can draw first network port optical signal, the first test side directly connects the first photodetector, the second test side connects a high isolation wavelength-division multiplexer, high isolation wavelength-division multiplexer has 1490nm wavelength output and two wavelength outputs of 1550nm, 1490nm wavelength output connects the second photodetector, two wavelength outputs of 1550nm connect the 3rd photodetector, said the first photodetector, the second photodetector, the 3rd photodetector are PIN pipe, and said the first photodetector, the second photodetector, the 3rd photodetector are the photodetector of same light power meter.
Its operation principle is as follows: the first network port (port one) of optical device assembly can be connected with the OLT port of PON network, second network port (port 2) can be connected with the ONU port of PON network, in network, 90% light signal can continue transmission, and 10% light signal is imported into optical device assembly.The 1310nm burst luminous signal importing from network ONU port, after three-wavelength optical coupler, enters the first photodetector (PIN pipe 1), light signal can be converted to the signal of telecommunication and send into PON light power meter and measure processing.The 1490nm and the 1550nm flashlight that from network OLT port, import, through three-wavelength optical coupler is laggard, enters wavelength division multiplexer and carry out separation, enter respectively the second photodetector (PIN pipe 2) and the 3rd photodetector (PIN manages 3), two ways of optical signals can be converted to simultaneously send into PON light power meter after the signal of telecommunication and measure processing.
Claims (4)
1. an optical device assembly that is applied to PON network light power meter, it is characterized in that: comprise three-wavelength optical coupler, three-wavelength optical coupler has 90% optical signal transmission end and 10% optical signal transmission end, 90% optical signal transmission end comprises a first network port that can be connected with the OLT port of PON network and a second network port that can be connected with the ONU port of PON network, 10% optical signal transmission end has the first test side and second test side that can draw second network port optical signal that can draw first network port optical signal, the first test side directly connects the first photodetector, the second test side connects a wavelength division multiplexer, wavelength division multiplexer has 1490nm wavelength output and two wavelength outputs of 1550nm, 1490nm wavelength output connects the second photodetector, two wavelength outputs of 1550nm connect the 3rd photodetector.
2. according to the optical device assembly that is applied to PON network light power meter claimed in claim 1, it is characterized in that: described the first photodetector, the second photodetector, the 3rd photodetector are PIN pipe.
3. according to the optical device assembly that is applied to PON network light power meter claimed in claim 1, it is characterized in that: described the first photodetector, the second photodetector, the 3rd photodetector are the photodetector of same light power meter.
4. according to the optical device assembly that is applied to PON network light power meter claimed in claim 1, it is characterized in that: described wavelength division multiplexer is high isolation wavelength-division multiplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235300.3U CN203883834U (en) | 2014-05-08 | 2014-05-08 | Optical device assembly applied to PON network optical power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235300.3U CN203883834U (en) | 2014-05-08 | 2014-05-08 | Optical device assembly applied to PON network optical power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883834U true CN203883834U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235300.3U Expired - Fee Related CN203883834U (en) | 2014-05-08 | 2014-05-08 | Optical device assembly applied to PON network optical power meter |
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| CN (1) | CN203883834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184356A (en) * | 2021-11-25 | 2022-03-15 | 苏州六幺四信息科技有限责任公司 | Photoelectric detector nonlinear analysis method and device |
-
2014
- 2014-05-08 CN CN201420235300.3U patent/CN203883834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184356A (en) * | 2021-11-25 | 2022-03-15 | 苏州六幺四信息科技有限责任公司 | Photoelectric detector nonlinear analysis method and device |
| CN114184356B (en) * | 2021-11-25 | 2024-01-09 | 苏州六幺四信息科技有限责任公司 | Nonlinear analysis method and nonlinear analysis device for photoelectric detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20200508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |