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Optical power adjusting, measuring method and apparatus

A technology of optical power and commissioning, which is applied in the field of optical networks, can solve problems such as the impact of optical fiber transmission work, achieve good service signal transmission quality, accurate optical power commissioning, and reduce commissioning time.

Inactive Publication Date: 2009-08-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the optical power commissioning in the WDM network is mainly completed manually by the commissioning personnel. In addition to the technical knowledge of the WDM network, the commissioning personnel also need to carry various measuring instruments / instruments back and forth between the nodes for testing. Due to the commissioning of the instrument, it is necessary to cut the fiber and connect the instrument to the network to find and set parameters, which will affect the normal optical fiber transmission work.

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  • Optical power adjusting, measuring method and apparatus
  • Optical power adjusting, measuring method and apparatus
  • Optical power adjusting, measuring method and apparatus

Examples

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Embodiment 1

[0031] like image 3 Shown is a schematic diagram of a link of a wavelength division network. In the figure, a link is taken as an example. After the OTM1 (Optical Terminal Multiplexer, optical terminal multiplexer) multiplexes the uplink optical signals generated by the laser, it passes through the OLA1 (Optical Line Multiplexer). Amplifier, optical line amplifier) ​​amplifies and transmits downstream; OADM1 (Optical Add and Drop Multiplexer, optical add-drop multiplexer) receives the optical signal amplified by OLA1, drops the optical signal from OTM1, and then multiplexes the OADM1 itself After the optical signal received from OADM1 is transmitted downstream, it is amplified by OLA2 and OLA3 and then sent to OADM2 for transmission. OADM2 will down-wave the received optical signal from OADM1, and then multiplex the uplink optical signal of OADM2 itself, and then transmit it downstream. , amplified by OLA4 and OLA5 and sent to OTM2. Among them, each OTM, OADM, and OLA in the...

Embodiment 2

[0099] The technical solution of Embodiment 1 is a detailed description of the optical power adjustment method for the chain network. In this embodiment, a method for adjusting optical power is proposed for the circumstance of a ring network. According to the characteristics of the ring network, the method provided by this embodiment is described in detail, and the contents are as follows:

[0100] For the automatic commissioning of optical power in the WDM network of the ring network, the transmitters of the ring network are all transmitters with through waves. In order to optimize the commissioning effect, the ring network needs to be commissioned twice. Among them, the first commissioning is performed. When , the attenuation value of the punch-through wave obtained according to the calibration attenuation formula cannot be changed, so a second commissioning is required to optimize the total power of the combined wave to make up for the error caused by the calculation accord...

Embodiment 3

[0113] The embodiment of the present invention provides a device for optical power commissioning, such as Figure 8 As shown, the equipment includes:

[0114] a first acquisition module, configured to acquire the commissioning value of the attenuator of the optical amplifier at the transmitting end of the wavelength division link;

[0115] a first setting module, configured to set the attenuator of the optical amplifier at the transmitting end according to the commissioning value obtained by the first obtaining module;

[0116] The second acquisition module is configured to, after the first setting module sets the attenuator of the optical amplifier at the transmitting end, according to the current value of the total input optical power of the downstream optical amplifier of the wavelength division link, the target value of the total input optical power and the output value of the downstream optical amplifier. The current attenuation value of the attenuator, to obtain the adj...

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Abstract

The invention discloses a method and equipment for optical power debugging, which belong to the field of optical networks. The method comprises the steps of: acquiring a debugging value of an attenuator of a transmitting-end optical amplifier of a wavelength division link, and setting the attenuator of the transmitting-end optical amplifier according to the debugging value; and acquiring a debugging value of an attenuator of a downstream optical amplifier according to a current value of the input total optical power and a target value of the input total optical power of the downstream optical amplifier of the wavelength division link and a current attenuation value of the attenuator of the downstream optical amplifier, and setting the attenuator of the downstream optical amplifier according to the debugging value of the attenuator of the downstream optical amplifier. The equipment comprises a first acquisition module, a first setting module, a second acquisition module and a second setting module. By adopting integral debugging to the optical power in a wavelength division network, the method and the equipment do not need to disconnect optical fibers in the debugging process, realize the automation of the debugging, reduce error rate, and shorten debugging time.

Description

technical field [0001] The invention relates to the field of optical networks, in particular to a method and device for adjusting and measuring optical power. Background technique [0002] In recent years, with the development of network transmission technology, WDM networks have attracted widespread attention. A wavelength division network refers to an optical network that adopts the principle of wavelength division multiplexing (Wave Division Multiplexing, WDM) transmission. Wavelength division multiplexing transmission is to multiplex input signals of different wavelengths, that is, optical carriers, at the transmitting end of the optical network through a multiplexer, and then transmit it to the receiving end through an optical fiber. The received multiplexed optical signals are separated to obtain a single optical carrier, and then the converter can convert the optical signal corresponding to the optical carrier into an electrical signal, or connect the obtained differ...

Claims

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Application Information

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IPC IPC(8): H04B10/08H04J14/02H04B10/07
Inventor 武善伍李杰农刚程韶军张伟
Owner HUAWEI TECH CO LTD
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