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A fast cooperative control method and device for cascaded variable optical power units

A technology of cooperative control and optical power, applied in the field of optical communication, can solve the problem of long control time and achieve the effect of improving the bit error rate

Active Publication Date: 2019-08-13
WUHAN TELECOMM DEVICES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a control method is relatively clear in the process, but the control time is relatively long, and when the strategy changes, the control method needs to be adjusted a lot

Method used

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  • A fast cooperative control method and device for cascaded variable optical power units
  • A fast cooperative control method and device for cascaded variable optical power units
  • A fast cooperative control method and device for cascaded variable optical power units

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Experimental program
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Embodiment

[0043] Step 1: Divide the entire variable range G1 and G2 of the first and second level units into m and n equal parts according to the actual required resolution r1 and r2 for calibration according to the actual required resolution, then G1=r1*m, G2=r2*n.

[0044] Step 2: Form the parameters calibrated in step 1 into two separate control parameter tables C1 and C2, and arrange them according to the parameters of the two-stage variable optical power gain / attenuation unit gain from large to small or attenuation from small to large as C1={a 1 ,a 2 ,...a m} and C2={b 1 ,b 2 ,...b n}.

[0045] Step 3: Take one element array from C1 and C2 in turn to synthesize the control parameter array Q 11 , Q 12 ,...Q mn , the numbering principle is that the change of the first subscript from small to large represents the change of the first stage gain from large to small or the attenuation from small to large, and the change of the second subscript from small to large represents the s...

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Abstract

The invention relates to a cooperative control method and a cooperative control device, belonging to the technical field of optical communication, and specifically relates to a rapid cooperative control method and a rapid cooperative control device of a variable optical power unit. Through the method and the device, a gain / attenuation control parameter of single variable optical power gain / attenuation unit can be calibrated on the basis of a certain resolution according to actual demands, control parameters of two levels are combined into a control parameter array, and all the control parameter arrays form a control parameter matrix. Different control targets of two levels are abstracted into different jump strategies from one element to next element on the control parameter matrix, thus,the control parameters of two levels for realizing the control targets can be inquired quickly, and finally, rapid cooperative control of the cascaded variable optical power gain / attenuation unit canbe realized.

Description

technical field [0001] The invention relates to a cooperative control method and device, belonging to the technical field of optical communication, in particular to a fast cooperative control method and device for cascaded variable optical power units. Background technique [0002] Variable Optical Attenuator (VOA), Dynamic Gain Equalizer (DGE), Erbium-doped Optical Fiber Amplifier (EDFA), Semiconductor Optical Amplifier (SOA), etc. It is a typical variable optical power gain or attenuation unit in optical fiber communication. It realizes real-time control of channel optical power by providing attenuation or gain to the input signal. In the actual design of optical communication devices, subsystems and systems, it is often necessary to cascade the above variable optical power gain or attenuation units, such as two-stage amplified EDFA, and the receiving end of the CFP module integrates cascaded VOA and SOA Wait. [0003] For the control of cascaded variable optical power g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/564H04B10/67
CPCH04B10/564H04B10/672
Inventor 杨智程丽晶赵雪玲
Owner WUHAN TELECOMM DEVICES
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