Making Measurements

Measuring Wavelength and Power

Measuring broadband devices and chirped lasers

When first turned on (or the green Preset key is pressed), the Agilent 86120C is configured to measure narrowband devices such as DFB lasers and modes of FP lasers. If you plan to measure broadband devices such as LEDs, optical filters, and chirped lasers, use the Setup menu first to reconfigure the instrument. When broadband devices are selected, the display shows the BROAD annotation on the screen.

The measurement algorithm for broadband devices determines the wavelength based upon the center- of- mass of the power spectrum. The peak excursion function is used to determine the value of the integra- tion limits. Care must be taken to ensure that the integration limits are above any noise. This is especially true when measuring devices with sloping noise floors, like an EDFA amplifier. For more informa- tion on peak excursion, refer to “Defining Laser- Line Peaks” on page 2- 15.

Instrument specifications apply when the Agilent 86120C is configured to measure narrowband devices. Specifications do not apply when the instrument is configured to measure wideband devices.

To measure broadband devices

1Press the Setup key.

2Press MORE twice, and then the DEVICE softkey.

3Press the BROAD softkey.

To return to measuring narrowband devices, press NARROW.

2-9

Page 36 Page 38
Page 37
Image 37
Agilent Technologies Agilent 86120C manual Measuring broadband devices and chirped lasers, To measure broadband devices
Page 36 Page 38

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.
Top Page Image Contents