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Wavelength division multiplexer test system and its test method

A technology of wavelength division multiplexer and test system, applied in wavelength division multiplexing system, electromagnetic wave transmission system, transmission system and other directions, can solve the problems affecting the test accuracy of wavelength division multiplexer, time-consuming and laborious, etc., and achieve automatic data collection. , flexible test procedure, high precision effect

Inactive Publication Date: 2004-02-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing wavelength division multiplexer test usually adopts manual test, which is time-consuming and laborious. The operator has to perform a series of operation steps, repeatedly adjust the setting of the optical wavelength, and at the same time need to manually read the display data of the power instrument. The test procedure usually uses The same optical path is used to test insertion loss, polarization-dependent loss and return loss. This method requires an additional optical coupler to couple part of the optical power to test return loss.
However, due to the polarization-dependent loss of the optical coupler itself, it will affect the measurement accuracy of the polarization-dependent loss of the wavelength division multiplexer

Method used

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  • Wavelength division multiplexer test system and its test method
  • Wavelength division multiplexer test system and its test method
  • Wavelength division multiplexer test system and its test method

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Embodiment Construction

[0009] Please refer to figure 1 The wavelength division multiplexer testing system 1 of the present invention includes an adjustable light source 10, a power meter module 110, a return loss module 120, a polarization controller 20 and a computer control device (not shown). The adjustable light source 10 has a body frame (not shown) and first and second output ports 130 . The power meter module 110 and the return loss module 120 are placed in the body frame of the adjustable light source 10 , and the polarization controller 20 has first and second ports 210 , 220 . The first output port 130 of the adjustable light source 10 is connected to the return loss module 120 , and the second output port 130 is connected to the first port 210 of the polarization controller 20 . The tunable light source 10 , the power meter module 110 , the return loss module 120 and the polarization controller 20 are connected to the computer control device through the GPIB cable 40 . The computer cont...

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Abstract

The present invention discloses a wavelength division multiplexer testing system, including an adjustable light source providing light source for wavelength division multiplexer, a power instrument module for monitoring optical power of wavelength division multiplexer, an echo return loss module for testing echo return loss of wavelength division multiplexer, a polarization controller which can be connected with adjustable light source for controlling polarized state of output light of adjustable light source and a computer control device with control software, in which the adjustable light source, echo return loss module, power instrument module and polarization controller are connected with the computer control device by means of universal interface bus (GPIB cable).

Description

【Technical field】 [0001] The present invention relates to a wavelength division multiplexer test system and its test method for testing the optical performance of the wavelength division multiplexer, in particular to an automatic wavelength division multiplexer with high test rate, automatic data collection and flexible test procedures Multiplexer test system and test method thereof. 【Background technique】 [0002] The increase in public demand for broadband has promoted the development of wavelength division multiplexer technology. In a wavelength division multiplexer, multiple channel signals can be transmitted at high speed with low interference in an optical fiber. In order to ensure that the optical performance of the wavelength division multiplexer meets the required requirements, it is necessary to test the wavelength division multiplexer. [0003] Existing wavelength division multiplexer tests usually use manual testing, which is time-consuming and labor-intensive....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/00H04B10/02H04B10/08H04J14/02
CPCH04J14/02
Inventor 郁道琄
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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