Performance Tests

V. Polarization Dependent Loss (PDL): Optional

already selected.

c.Modify the filter setting to find the maximum signal transmission through the polarization controller:

•Select the most significant digit by using the cursor key.

Use the Modify knob to adjust the displayed angle slowly until the power reading on the multimeter shows the maximum value.

•Select the next digit with the cursor key.

Use the Modify knob to adjust the displayed angle slowly until the power reading on the multimeter shows the maximum value.

•Select the least significant digit by using the cursor key.

Use the Modify knob to adjust the displayed angle slowly until the power reading on the multimeter shows the maximum value.

•Press ENTER

•Note the displayed angle of the polarization filter as "Polarizer Setting, Linear Horizontal Polarization" in the Test Record.

For the following steps, the polarizer is kept constant.

Set plates for Linear Horizontal polarization

7.Set the λ /4 Retarder Plate for Linear Horizontal polarization.

a.Select the λ /4 Retarder Plate. Press λ /4

b.Modify the λ /4 plate setting to the same angle as the polarization filter found in item 6c.

c.Press ENTER

d.Note the angle as "λ /4 Plate Setting, Linear Horizontal Polarization" in the Test Record.

8.Set the λ /2 Retarder Plate for Linear Horizontal polarization.

194

Page 193 Page 195
Page 194
Image 194
Agilent Technologies 8156A manual Set plates for Linear Horizontal polarization
Page 193 Page 195

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.
Top Page Image Contents