Programming

Example Programs

Example 2. Measure WDM channels

This program measures the multiple laser lines of a WDM system. It measures both the power and wavelengths of each line. First, the pro- gram sets the Agilent 86120C in the single- acquisition measurement mode. Then, it triggers the Agilent 86120C with the MEASure com- mand to capture measurement data of the input spectrum. Because the data is stored in the instrument’s memory, it can be queried as needed.

Refer to the introduction to this section for a description of each sub- routine that is contained in this program.

COM /Instrument/ @Mwm

ASSIGN @Mwm TO 720

ON ERROR GOTO Error_msg,

Set_ese

PRINT USING "37A,33A";"Multi-Wavelength Meter Identity is : ";FNIdentity$

OUTPUT @Mwm;":INIT:CONT OFF"

ON TIMEOUT 7,5 CALL Err_mngmt

OUTPUT @Mwm;":MEAS:ARR:POW:WAV?"

ENTER @Mwm USING "#,K";Nb_wl

ALLOCATE Current_wl(1:Nb_wl)

ENTER @Mwm USING "#,K";Current_wl(*)

OUTPUT @Mwm;":FETC:ARR:POW?"

ENTER @Mwm USING "#,K";Nb_wl

ALLOCATE Current_pwr(1:Nb_wl)

ENTER @Mwm USING "#,K";Current_pwr(*)

FOR I=1 TO Nb_wl

PRINT USING "22A,2D,6A,4D.2DE,4A,S2D.2D,3A";"The wavelength number ";Current_wl(I);" at ";Current_pwr(I);"dBm"

NEXT I

OFF TIMEOUT

STOP

Error_msg:

PRINT "the prgm is aborted due to : ";ERRM$

END

Err_mngmt:SUB Err_mngmt

COM /Instrument/ @Mwm

DIM Err_msg$[255]

INTEGER Cme

CLEAR 7

REPEAT

OUTPUT @Mwm; "*ESR?"

ENTER @Mwm;Cme

OUTPUT @Mwm; ":SYST:ERR?"

ENTER @Mwm;Err_msg$

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Agilent Technologies Agilent 86120C manual Example 2. Measure WDM channels
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Agilent 86120C specifications

Agilent Technologies is renowned for its innovative solutions in the field of electronic measurement and test instrumentation. Among its extensive portfolio, the Agilent 86120C stands out as a high-performance optical sampling oscilloscope designed for advanced optical communication system testing and development.

One of the key features of the Agilent 86120C is its ability to perform high-speed digital modulation analysis. With a bandwidth of up to 20 GHz, it supports a wide range of optical signals, making it ideal for testing and characterizing various optical components and systems. The device is capable of analyzing multiple modulation formats, including pulse amplitude modulation (PAM-4), making it a critical tool for engineers working on next-generation data transport technologies.

Another outstanding characteristic of the Agilent 86120C is its sophisticated optical performance monitoring capabilities. It employs advanced algorithms and techniques to provide real-time assessment of signal integrity. The oscilloscope can measure parameters such as eye diagrams, jitter, and signal-to-noise ratios, which are crucial for ensuring the reliability and performance of optical communication links.

Incorporating cutting-edge technologies, the Agilent 86120C features a high-sensitivity photodetector optimized for low-light detection and high-speed applications. This allows users to accurately capture and analyze signals, even when working with low-power transmission systems. The oscilloscope also supports multiple input channels, enabling simultaneous testing of multiple wavelengths or different signal paths.

User-friendly software is another highlight of the Agilent 86120C. The intuitive interface streamlines the measurement process and provides comprehensive data analysis tools. Users can quickly generate reports, conduct statistical analysis, and visualize data in various formats to enhance their understanding of signal behavior.

Additionally, the Agilent 86120C is equipped with connectivity options for seamless integration into larger test setups. It can easily interface with other Agilent test instruments, PCs, and networked environments, allowing engineers to create a comprehensive testing environment tailored to their specific needs.

In conclusion, the Agilent 86120C optical sampling oscilloscope combines high performance, advanced features, and cutting-edge technologies to meet the demanding requirements of optical communication testing. Its versatility makes it an essential tool for engineers working in the rapidly evolving field of data communications.
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