CN103001692A - Method for adjusting parameters of optical module - Google Patents
Method for adjusting parameters of optical module Download PDFInfo
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- CN103001692A CN103001692A CN2012104300059A CN201210430005A CN103001692A CN 103001692 A CN103001692 A CN 103001692A CN 2012104300059 A CN2012104300059 A CN 2012104300059A CN 201210430005 A CN201210430005 A CN 201210430005A CN 103001692 A CN103001692 A CN 103001692A
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- target component
- optical module
- indication range
- module
- input parameter
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Abstract
The invention provides a 'linear-slope-method'-based method for adjusting parameters of an optical module and solves the problem that optical parameter adjusting for a PON (passive optical network) module is low in efficiency. An optical parameter curve of the PON module complies with the rule of 'equality to an equivalent straight line in a small range', and accordingly in the process of optical parameter adjustment, the slope of optical parameter changing 'approximate equivalent straight line' is calculated according to the former optical parameter change, next DA (digital to analog) adjusting quantity is calculated according to dynamic slope, and accordingly optical parameters of the module can be quickly adjusted to an index range and adjusting efficiency of the PON module is improved.
Description
Technical field
The present invention relates to the EPON field, the method that particularly optical module parameter is regulated in a kind of EPON comprises the adjusting to EPON, GPON optical module luminous power, extinction ratio, is a kind of method that optical module parameter is regulated efficient that increases substantially.
Background technology
Can be divided into optical fiber to commuting case (Fiber To The Cabinet at FTTX(FTTX; FTTCab), Fiber To The Curb (Fiber To The Curb; FTTC), Fiber To The Building (Fiber To The Building; FTTB) and Fiber to the home (Fiber To The Home; 4 kinds of service patterns such as FTTH).The Verizon of U.S. operator is collectively referred to as FTTP (Fiber To The Premise with FTTB and FTTH; FTTP).Above-mentioned service can be referred to as FTTx) today of day by day popularizing, to PON(Passive Optical Network: passive optical-fiber network) demand of module also presents the trend of rapid growth.Therefore, improve the factory test efficient of PON module, reduce its production test time, just become the raising production capacity, reduce the key of cost.
The production test of PON module mainly is divided into debugging and test two parts.The test link is subject to test request, is difficult to improve its production test efficient.Therefore, the optimization of the debugging link luminous power of PON module, the adjusting, measuring method of extinction ratio just becomes the key that promotes its accent survey efficient.For traditional " walking dichotomy " regulating optical power, the drawback of extinction ratio inefficiency, the method that we have developed a kind of quick adjustment optical parameter (luminous power, extinction ratio) improves the production test efficient of PON module.
It is " walking dichotomy " that present PON module optical parameter (luminous power, extinction ratio) is regulated the adjusting, measuring method that generally adopts, in case issuing predefined initial value can't regulate when successful, its adjustment process just takes fixed step size or simple two minutes step-lengths to approach one by one, can't settle at one go.Regulate often, transfer survey efficient low.
Summary of the invention
Transfer the inefficient problem of survey for present PON module beche-de-mer without spike, the invention provides a kind of optical module parameter control method based on " linear gradient method ".
The present invention for the technical scheme of finishing its technical purpose and adopting is: a kind of optical module parameter control method, by the input parameter of regulating target is regulated, and make target component fall into indication range; May further comprise the steps:
A, obtain when target component falls into indication range the assembly average of input parameter
Obtain when target component falls into indication range and get large value
And minimum value
The time, the input parameter maximum
And minimum value
Be calculated as follows initial default and change slope
B, be described assembly average to next one optical module to be measured input initial input parameter
C, the corresponding target component of this optical module to be measured of acquisition
D, judge described target component
Whether fall into indication range; If described target component
Fall into indication range and then regulate end, turn to step B to regulate another piece optical module to be measured, otherwise turn to step e;
Step e, be calculated as follows to described optical module input parameter
；
Step F, acquisition target component
Judge described target component
Whether fall into indication range; If described target component
Fall into indication range and then regulate end, turn to step B to regulate another piece optical module to be measured, otherwise turn to step e;
Above-mentioned input parameter
During for modulated current numerical value, target component
Be extinction ratio; Above-mentioned input parameter
During for the back facet current desired value, target component
Be luminous power.
Further, in the above-mentioned optical module parameter control method: in the described steps A, be by the manual adjustments input parameter, make the output parameter scope that touches the mark.
PON module beche-de-mer without spike curve has the rule of " can be equal to equivalent straight line among a small circle ", thereby can be in the beche-de-mer without spike adjustment process, according to last time beche-de-mer without spike variation, calculate the slope that beche-de-mer without spike changes " Approximate Equivalent straight line ", and go out the next time adjustment amount of DA according to this slope dynamic calculation, thereby the module beche-de-mer without spike is adjusted in the indication range rapidly, improves the adjusting efficient of PON module.
Embodiment
Device property and creation data statistics can find that slope of curve variation is less within the specific limits for PON module beche-de-mer without spike, and this scope has contained module beche-de-mer without spike indication range interval fully; Consider that further the module beche-de-mer without spike itself is an interval with certain limit but not a point.Therefore the equivalent linearization of module beche-de-mer without spike change curve is processed, the deviation of its match in allowed limits.
Present embodiment is exactly to increase the non-linear increase of extinction ratio according to the Changing Pattern of PON module output variable extinction ratio to modulated current Modu_Da: Modu_Da; Modu_Da reduces, and extinction ratio is non-linear to be reduced the extinction ratio of optical module is regulated, and is suitable for machine works.
1, according to the device property of above-mentioned narration, gets some (about 10 s') sample block, manual adjustment modulated current Modu_Da, the indication range [ER that its extinction ratio is reached draft in advance
MIN, ER
MAX] (this indication range is that each PON module manufacturer is drafted in advance according to the product specification of oneself), record the extinction ratio of these 10 modules and transfer the Modu_Da that measures in the target zone, get its mean value as Modu_ DA
0
2, get 1 module, regulate modulated current Modu_Da
MIN, making its extinction ratio is index lower limit ER
MIN, write down modulated current Modu_Da at this moment
MINSame method is regulated extinction ratio to ER
MAX, write down modulated current Modu_Da at this moment
MAX, calculate accordingly initial default and change slope K
0=(ER
MAX-ER
MIN)/(Modu_Da
MAX-Modu_Da
MIN).
3, program software control test PC issues initial Modu_ DA to the PON module
0, read module feedback quantity (luminous power/extinction ratio) ER
0:
If ER
0At the interval [ER of index
MIN, ER
MAX], then finish debugging;
Otherwise, adjusting module input Modu_Da
1=Modu_Da
0+ [(ER
MIN+ ER
MAX)/2)-ER
0]/K
0.
4, read module feedback quantity (luminous power/extinction ratio) ER
1:
If ER
1At the interval [ER of index
MIN, ER
MAX] then finish to debug;
Otherwise, the adjusting module input
Modu_Da
?2?=?Modu_Da
?1?+[?(ER
?MIN?+?ER
?MAX)?/?2)?–ER
?1]?/?[(ER
?1?-?ER
?0?)?/?(Modu_Da
?1-?Modu_Da
?0)]
Repeat 3, until regulate successfully.
The adjusting of another parameter luminous power of PON module similarly, in single closed loop, PON module output variable luminous power to the Changing Pattern of the back facet current AD of input variable is, and: Tx_APC_Target increases, the non-linear increase of luminous power direct proportion; Tx_APC_Target reduces, and the luminous power direct proportion is non-linear to be reduced.Tx_APC_Target is TX back facet current AD goal-setting value.
Application practice contrast verification through production: module just can be adjusted in the indication range through about 3 steps, and the only a few module is owing to the impact of device discrete type, and its regulating step is not also above 5 steps; And traditional " walking dichotomy " general regulating step is more than 5 steps, and the bad module regulating step of small number of discrete type needed for 10 steps.Comparatively speaking, the linear gradient method is raised the efficiency about 60% than walking dichotomy.
Claims (2)
1. an optical module parameter control method is regulated target by the input parameter of regulating, and makes target component fall into indication range; It is characterized in that: may further comprise the steps:
A, obtain when target component falls into indication range the assembly average of input parameter
Obtain when target component falls into indication range and get large value
And minimum value
The time, the input parameter maximum
And minimum value
Be calculated as follows initial default and change slope
B, be described assembly average to next one optical module to be measured input initial input parameter
C, the corresponding target component of this optical module to be measured of acquisition
D, judge described target component
Whether fall into indication range; If described target component
Fall into indication range and then regulate end, turn to step B to regulate another piece optical module to be measured, otherwise turn to step e;
Step e, be calculated as follows to described optical module input parameter
Step F, acquisition target component
Judge described target component
Whether fall into indication range; If described target component
Fall into indication range and then regulate end, turn to step B to regulate another piece optical module to be measured, otherwise turn to step e;
Above-mentioned input parameter
During for modulated current numerical value, target component
Be extinction ratio; Above-mentioned input parameter
During for the back facet current desired value, target component
Be luminous power.
2. optical module parameter control method according to claim 1 is characterized in that: in the described steps A, be by the manual adjustments input parameter, make the output parameter scope that touches the mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430005.9A CN103001692B (en) | 2012-11-01 | 2012-11-01 | Method for adjusting parameters of optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430005.9A CN103001692B (en) | 2012-11-01 | 2012-11-01 | Method for adjusting parameters of optical module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103001692A true CN103001692A (en) | 2013-03-27 |
| CN103001692B CN103001692B (en) | 2015-06-17 |
Family
ID=47929870
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210430005.9A Active CN103001692B (en) | 2012-11-01 | 2012-11-01 | Method for adjusting parameters of optical module |
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| CN (1) | CN103001692B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825651A (en) * | 2014-03-21 | 2014-05-28 | 索尔思光电（成都）有限公司 | Optical power conditioning algorithm of optical module |
| CN105191182A (en) * | 2014-02-27 | 2015-12-23 | 索尔思光电（成都）有限公司 | Status monitoring, storage and reporting for optical transceivers by tracking operating parameter variations |
| CN105208466A (en) * | 2014-06-04 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | Cabinet type multiport EPON system |
| CN110135101A (en) * | 2019-05-24 | 2019-08-16 | 国网河南省电力公司信息通信公司 | A kind of algorithm optimizing optical cable monitoring system PD detection of optical power precision |
| CN111478728A (en) * | 2020-04-01 | 2020-07-31 | 武汉兴思为光电科技有限公司 | Automatic debugging method, device, equipment and storage medium for optical power of optical module |
| CN111600193A (en) * | 2020-05-28 | 2020-08-28 | 成都优博创通信技术有限公司 | Optical module debugging method and device, electronic equipment and storage medium |
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| US20020080438A1 (en) * | 1999-09-03 | 2002-06-27 | Optical Networks, Inc. | Optical power management in an optical network |
| CN101494504A (en) * | 2008-12-16 | 2009-07-29 | 武汉电信器件有限公司 | Automatic control optical module with constant average light power and extinction ratio based on singlechip |
| CN102281102A (en) * | 2011-08-01 | 2011-12-14 | 成都优博创技术有限公司 | Open loop debugging method for optical power and extinction ratio of transmit terminal of optical module |
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2012
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Patent Citations (3)
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| US20020080438A1 (en) * | 1999-09-03 | 2002-06-27 | Optical Networks, Inc. | Optical power management in an optical network |
| CN101494504A (en) * | 2008-12-16 | 2009-07-29 | 武汉电信器件有限公司 | Automatic control optical module with constant average light power and extinction ratio based on singlechip |
| CN102281102A (en) * | 2011-08-01 | 2011-12-14 | 成都优博创技术有限公司 | Open loop debugging method for optical power and extinction ratio of transmit terminal of optical module |
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|---|
| 曹阳: "《EPON用小型封装光模块的研究与设计》", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191182A (en) * | 2014-02-27 | 2015-12-23 | 索尔思光电（成都）有限公司 | Status monitoring, storage and reporting for optical transceivers by tracking operating parameter variations |
| CN105191182B (en) * | 2014-02-27 | 2017-07-28 | 索尔思光电（成都）有限公司 | By the optical transceiver condition monitoring for following the trail of variation of operating parameters, storage and report |
| CN103825651A (en) * | 2014-03-21 | 2014-05-28 | 索尔思光电（成都）有限公司 | Optical power conditioning algorithm of optical module |
| CN103825651B (en) * | 2014-03-21 | 2016-01-20 | 索尔思光电（成都）有限公司 | The optical power adjusting method of determining and calculating of optical module |
| CN105208466A (en) * | 2014-06-04 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | Cabinet type multiport EPON system |
| CN105208466B (en) * | 2014-06-04 | 2019-07-05 | 上海斐讯数据通信技术有限公司 | Cabinet-type multiport EPON system |
| CN110135101A (en) * | 2019-05-24 | 2019-08-16 | 国网河南省电力公司信息通信公司 | A kind of algorithm optimizing optical cable monitoring system PD detection of optical power precision |
| CN111478728A (en) * | 2020-04-01 | 2020-07-31 | 武汉兴思为光电科技有限公司 | Automatic debugging method, device, equipment and storage medium for optical power of optical module |
| CN111600193A (en) * | 2020-05-28 | 2020-08-28 | 成都优博创通信技术有限公司 | Optical module debugging method and device, electronic equipment and storage medium |
| CN111600193B (en) * | 2020-05-28 | 2021-12-14 | 成都优博创通信技术有限公司 | Optical module debugging method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103001692B (en) | 2015-06-17 |
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