Making an Attenuation Sweep

The Manual Sweep

Figure 3-4

Running the Automatic Sweep

If there is something wrong with a parameter (if STEP is zero, for example), this parameter is shown on the display for editing. Edit the parameter, and press EXEC again.

Repeating the Sweep

When the sweep is finished (SWEEP READY is shown at the bottom of the display), you can press EXEC to start it again.

Restarting the Sweep

To restart the sweep at any time while it is running, press EXEC.

3.3 The Manual Sweep

A manual sweep is one where stepping from one attenuation factor to the next is done by the user.

Setting Up a Manual Sweep

There are three parameters for a manual sweep

•START is the attenuation factor at which the sweep begins.

•STOP is the attenuation factor that ends the sweep. If START and STEP are such that the sweep does not end exactly at STOP, then the sweep ends at the immediately previous value.

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Agilent Technologies 8156A manual Repeating the Sweep, Restarting the Sweep, Setting Up a Manual Sweep
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8156A specifications

Agilent Technologies 8156A is a high-performance optical source offering advanced capabilities for testing and characterizing optical systems. Specifically designed for applications in telecommunications and data communications, the 8156A stands out due to its precision, versatility, and reliability, making it an essential tool for engineers and researchers in the telecommunications industry.

One of the main features of the 8156A is its ability to generate a stable, accurate, and tunable optical signal. This optical source operates across a wide wavelength range, typically from 1260 nm to 1675 nm, covering key regions used in fiber optics. The tunable laser module is particularly beneficial for applications requiring the testing of fiber optic components, systems, and networks, enabling users to specify any wavelength within this range.

The device employs advanced technologies, including distributed feedback (DFB) laser technology, offering low noise and high output power while ensuring minimal phase and frequency jitter. This results in precise measurements that are crucial for evaluating the performance of optical devices. The 8156A also features a built-in optical power meter, allowing for seamless integration and real-time monitoring of optical power levels during testing.

Another significant characteristic of the 8156A is its user-friendly interface, which includes easy-to-read displays and intuitive controls. This design simplifies operation, allowing users to set up tests quickly and efficiently. Additionally, it provides various output options, including single-mode and multi-mode fiber interface compatibility, expanding its usability across different applications.

The 8156A is equipped to handle numerous protocols and systems, including passive optical networks (PON), optical transport networks (OTN), and traditional wavelength-division multiplexing (WDM) technologies. Its agility in adapting to various protocols enhances its role in research and development settings.

Moreover, the device offers a range of automation features, enabling users to script complex measurement sequences, making it an adaptable solution for both laboratory and field environments. Combined with its robust build quality, the Agilent Technologies 8156A optical source not only ensures reliable operation but also provides a long service life, making it a valuable investment for any optical testing application.
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