ADVANTEST Q8221 PDF

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Various optical sensors and light sources are available as plug-in units. The two channels of the Q can be used individually or simultaneously. Free combination of optical sensors and light sources enables diverse applications. Not only at the calibration point, these sensors also assure at the broad band wavelength region and the level to be measured.

The Q is capable of storing data containing points with the A and B channels independently. Furthermore, stored data can be directly output to an external plotter as a graph. Also, PDL measurement is very easy with Q, because Q can display maximum and minimum values as well as the difference between the maximum and minimum values of the measured data. Sensor plug-in channels: 2 Channels A and B.

Measurement mode: CW or chopped light Hz measurement mode selectable. Averaging function: The number of averaging can be set to 2 to using the running averaging method. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration.

Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit. Related Optical Terms and Definitions. In lasers and particularly in high-gain erbium-doped amplifiers, amplified spontaneous emission is usually an unwanted effect. It tends to limit the gain achievable in a single stage of a fiber optic amplifier to the order of 40—50 dB. Dynamic Range In a transmission system, the ratio of the overload level to the noise level of the system, usually expressed in dB.

Ratio of the highest to lowest detectable signal of a system, expressed in dB. Optical Power Optical Power is usually measured in "dBm", or decibels referenced to one miliwatt of power. You measure absolute power to test transmitters or receivers and relative power to test loss.

Wavelength Wavelength is a term for the color of light, usually expressed in nanometers nm or microns m. In Fiber Optics the wavelenghts mostly used are in the infrared region where the light is invisible to the human eye.

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