Making Measurements

Measuring Laser Drift

You can restart the drift measurement at any time by pressing the RESET softkey. All minimum and maximum values are reset to the ref- erence values, and the Agilent 86120C begins to monitor drift from the current laser line values. Move the cursor up and down the listing to see the reference wavelength and power of each laser line.

If measurement updating stops or the values become blanked

If, in the middle of a measurement, the number of laser lines present changes, the measurement stops until the original number of lines returns. You’ll notice that a CLEAR softkey appears and one of the following message is displayed:

E46 NUM LINES < NUM REFS

E47 NUM LINES > NUM REFS

To view the data measured before the conditions changed, press CLEAR and then MAX-MIN. Notice that the measurement acquisition is changed from con- tinuous to single.

To restart testing, press CLEAR, the CONT key, and then RESET to use the new number of lines as the reference. Pressing CONT restarts continuous measure- ment acquisition. Or, you can restore the original number of lines on the input so that the drift measurement can continue.

To measure drift

1Press the front- panel Preset key.

2Press Peak WL, List by WL, or List by Power to select the display style for observing drift.

3Press Appl’s and then DRIFT.

Pressing DRIFT sets the current laser- line values as the reference from which to compare all drift.

4Press MAX-MINfor the desired type of drift measurement as described in the following paragraphs:

Display shows the current values of laser lines relative to the wavelength and power values measured when the test was begun or the RESET softkey was pressed.

Display shows absolute maximum values since the drift measurement was started. This measurement gives the longest wavelength and greatest power measured. The laser line of interest may have since drifted to a lesser value. Note that the

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Agilent Technologies Agilent 86120C manual To measure drift, If measurement updating stops or the values become blanked
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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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