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Technical Support

Electronic Measurement

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What is the calibration cycle for the FP laser sources?
The calibration cycle for the 8165xA FP laser sources is 24 months.

FAQ 2011-07-06

Will the 8163x optical power sensor modules operate with both SM and MM fiber?
Yes, you can use the optical power sensors with both single mode (SM) and multimode (MM) fiber.

FAQ 2011-07-06

Can I use multimode fiber on a single mode output and vice versa?
Apart from any loss resulting from Fresnel-reflections on the concatenation of the two fibers ...

FAQ 2011-07-06

What is the model number of the blank filler panel for compact slots in the 816x mainframes?
The blank filler panel for compact modules is part number: 08163-44101.

FAQ 2011-07-06

How can T-Value be defined?
The T-value can be described as the effective return loss of a system, with all internal parasitic reflections ...

FAQ 2011-07-06

Does Keysight still offer analog outputs for the 8163x optical power sensor modules?
Keysight Technologies offers several different optical power sensors:

FAQ 2011-07-06

Can I use APC connectors with the 8163x optical power sensor modules?
Yes, you can use the optical power sensors with straight (PC) or angled (APC) fiber at the input.

FAQ 2011-07-06

Can the output power on the 8166xA DFB source be adjusted?
The maximum output power on the sources can be attenuated up to 6.0 dB, in 0.1 dB steps.

FAQ 2011-07-06

Do the 8166xA DFB Laser Sources have optical isolators on the output?
Each 8166xA DFB Laser Source has an optical isolator on the output.

FAQ 2011-07-06

Can I use the 815xx Modules with the newer 816x mainframes? What are the trade-offs?
The 815xx modules will operate in the 8163 and 8164 mainframe, but NOT in the 8166 mainframe.

FAQ 2011-07-05

Can I use the newer 816xx modules in the older 8153A mainframe?
The new 816xx modules will NOT operate in the older 8153A mainframe.

FAQ 2011-07-05

What kind of power sensor is used in the 81566A/67A?
The 81566A/67A uses an InGaAs photodiode, similar to Keysight's 81632A power sensor module.

FAQ 2011-07-05

Is the power control loop of the 81566A/67A also working for signal packets?
Yes, the averaging time of the 81566A/67A has to be adjusted to a time significantly longer than ...

FAQ 2011-07-05

Can I use the 816xx series modules in any of the 816x mainframes?
The compact modules will operate in any of the 816X mainframes. However, the large slot tunable ...

FAQ 2011-07-05

Should I use a Germanium (Ge) or a Indium Gallium Arsenide (InGaAs) optical head?
An important difference between Ge and InGaAs is the shape of the spectral responsivity curves.

FAQ 2011-07-05

I need to operate four compact modules. Can I use the 8164 mainframe without a large slot tunable laser?
Yes, the 8164 mainframe can operate without a large slot tunable laser (81640A/642A/680A/682A/81480A).

FAQ 2011-07-05

Is there an electrical extender cable available for the 8162xA/B optical heads?
The model number of this cable, with a length of 4 meters, is 81624CE.

FAQ 2011-07-05

Is there an electrical extender cable for the 815xx series optical heads?
An electrical extender cable was available. However, we do no longer manufacture it.

FAQ 2011-07-05

Why can't I install the license key from my PFL CD-ROM?
If you have PFL version 1.0.3 the installation process is described on the CD-ROM (PFL README.pdf).

FAQ 2011-07-05

What is the calibration cycle for the 8161x Optical Return Loss Module?
The 8161X Optical Return Loss Modules have a 24 month calibration cycle.

FAQ 2011-07-05

What is the difference between the FETCH and the READ command to get the data from the power modules?
The FETCH and READ command will both acquire a power reading from the mainframe.

FAQ 2011-07-05

What accessories should I order with the 8162x optical heads?
The heads will not be able to operate as standalone instruments. The following accessories are needed ...

FAQ 2011-07-05

Does the parameters 'averaging time' and 'speed' influence the power control loop of the 81566A/67A?
The user selected averaging time is effective for all internal power measurements...

FAQ 2011-07-05

I am going through several patch cables before I connect to my device. Where do I establish my reference?
If you are measuring return loss through several patch cables there are three calibrations which are ...

FAQ 2011-07-05

How small is CD and PMD of the 8156xA?
The value of CD and PMD of the 8156xA is equivalent to the value of about 1 m optical fiber SMF28.

FAQ 2011-07-05

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