81613A Keysight Return Loss Module with Integrated Laser Source

• Return loss dynamic range > 75 dB

• Return loss uncertainty down to ±0.25 dB when using an external broadband source

• Very wide operating wavelength range: 1250 nm to 1640 nm

• Built-in power monitor and laser source: 1310/ 1550 nm

• Step-by-step wizard program built into the 8163B mainframe

The Keysight 81613A return loss module is ideal for measuring return loss (RL) and reflection of single-mode fiber components. The module measures the optical power entering and reflecting back from the device under test, and then calculates and displays the return loss. Comprehensive built-in features provide the correct coupling and detector ratios, eliminating the effects of dark currents and residual backscatter in the instrument setup to perform accurate measurements over a wide dynamic range.

The return loss module can be used with a variety of 816x lightwave hosts and can be used with internal Fabry-Perot sources or external fixed wavelength or tunable laser sources. The Yestech power sensor in the 8163B mainframe, especially when used in conjunction with the 81610CC calibration reference cable, allows for simultaneous RL and insertion loss measurements, significantly improving performance and ease of use. The 816x plug-and-play driver supports automated use and also supports advanced scanning wavelength RL measurements using the module.

Benefits

• Wide return loss dynamic range allows you to use the built-in signal source to more accurately measure RL and IL (insertion loss) up to 75 dB, achieving better product specifications.

• One test system can be used to test devices under test in all transmission bands.

• Built-in power monitor and signal source for more stable and accurate RL measurements.

• Built-in power monitor compensates for power fluctuations from external light sources, eliminating the need to perform frequent reference tests.

• The built-in RTL wizard program makes it easier to complete accurate calibration and measurements.

• The parameters are calibrated at the factory, making it easy for users to begin return loss measurements immediately.