It is understood that other optical module manufacturers use virtual instrument technology to realize the automatic testing process of various performance parameters of optical modules. This method requires the use of a large number of expensive instruments, which are connected to the PC with VISA compatible interfaces. Common examples are the test instruments and equipment used: Agilent's digital communication analyzer 86100B, E8403AVXI chassis, VXI81250 bit error meter module, China Electronics Technology Group Research Institute AV2495 optical power meter AV6381 programmable optical attenuator, etc. Among them, the 86100B, AV2495 optical power meter and AV6381 programmable optical attenuator all have GPIB interfaces. These test instruments with GPIB interfaces can be connected and integrated into a complete system through Agilent's GPIB card, and the Agilent VISA library is used to write test application programs to control instrument operation. The Agilent VXI 81250 bit error tester module is inserted into the Agilent E8403A VXI chassis when it is used. The PCI IEEE1394 card of Xudian needs to be inserted into the computer. The 0 slot module E8491B of the VXI chassis is connected with the 1394 card in the computer through the IEEE 1394 PC Link to VXI cable. For the Agilent 81250 module, the application is also written based on the Agilent VISA library to control it. This practice can be said to be a huge waste of resources for professional instruments. With the technology accumulation of F-tone, we can realize the functions of optical power, sensitivity, bit error rate meter and attenuator at a lower cost, and have higher accuracy and speed.
At present, domestic enterprises mainly use advanced testing equipment at home and abroad in the parameter testing process of optical communication products. Most of the testing instruments exist in isolation, and manually debug various knobs, buttons and human eyes on the control panel of the instrument to watch the waveform or data on the instrument.
This not only makes the testing process complicated and error prone, but also makes the testing efficiency very low, so it improves efficiency, reduces costs The realization of optical communication module test automation has become one of the keys to improve the market competitiveness of optoelectronic enterprises.
Post time: Nov-21-2022