Advantest Q8221 Optical Multifunction Power Meter

High Accuracy, High Sensitivity, High Speed

Optical power meter

Various optical sensors and light sources are available High accuracy :

± 2.5% (at calibration point)

± 4.5% (over the entire wavelength range)

Linearity : ± 0.5%

Low polarization dependence: 0.003 dBp-p

High sensitivity: -94 dBm

High power input level: +27 dBm

High-speed measurement: sampling rate of 100 times/second

Flexibility to meet the diverse needs of users for optical power measurement

Features

Flexible combination - dual-channel plug-in system.

The Q8221 utilizes a dual-channel plug-in system. Various types of optical sensors and light sources are available as plug-in units. Both channels can be used independently or simultaneously. By using the desired combination of optical sensors and light sources, the Q8221 can handle a wide variety of applications.

High measurement accuracy.

Ensure accuracy over the entire power and wavelength range.

The Q8221's optical sensors ensure a high accuracy of ±2.5% at the calibration point (short-wavelength sensors: Q82214 calibrated at 780nm; long-wavelength sensors: Q82208. Q82215. and Q82216 calibrated at 1300nm; Q82227 and Q82232 calibrated at 1550nm). In the broadband wavelength region, they ensure ±4.5% accuracy by compensating for the sensitivity curve at each sensor wavelength. In the broadband wavelength region, they ensure ±4.5% accuracy by compensating the sensitivity curve at each sensor wavelength. In addition, a linearity of ±0.5% is ensured. Not only in the calibration point, but also in the broadband wavelength region and at the level to be measured.

High Sensitivity Sensors

Noise level: -94 dBm.

The Q82208 and Q82232 optical sensors achieve high sensitivity by cooling the InGaAs photodiode. the Q82208. in particular, achieves -94 dBm. all three types are capable of measuring high power up to +10 dBm with high linearity. These sensors meet a wide range of user requirements for polarization correlation, return loss, and sensor type. They meet a wide range of measurement requirements.

High Power Input Optical Sensors (Q82227)

Maximum input power: +27 dBm

The Q82227 is suitable for long wavelength, high sensitivity and high power light. The sensor is capable of measuring optical inputs up to +27 dBm. Therefore, it is suitable for measuring the output of fiber-optic amplifiers, pump sources for fiber-optic amplifiers, and high-output devices (e.g., LDs for optical CATV). In addition, the Q82227 has a noise level of -80 dBm, so it can be used for measurements requiring a wide dynamic range.

Low polarization-dependent optical sensor (Q82232): 0.003 dBp-p or lower

The high-sensitivity Q82232 optical sensor has a polarization dependence as low as 0.003 dBp-p. Used in conjunction with the Q8163 polarization scrambler, it can be used for high-speed, high-precision PDL measurements of optical devices.

Low Reflection, High Return Loss Sensors

Adapters with Minimal Reflection

If the input light is reflected back, the effect on the system can lead to inaccurate measurements. the Q82208 optical sensors use optical fibers with beveled polished ends to suppress reflections (return loss of 50 dB or more). the Q82208 is designed for use in optical devices with high speed and high accuracy PDL measurements. the Q82208 is designed for use in optical devices with high speed and high accuracy. When using PC-polished connectors, 45 dB or more return loss can be obtained by using a low-loss, high-return-loss adapter (typical return loss without this adapter is 14 dB). The sensor is suitable for fibers with core diameters of 10 μm and NA values of 0.19 or less, making it suitable for measuring dispersion-shifted fibers. FC, SC, ST, MU, LC, and plug-in connectors are available.

Options available.

High-resolution measurement.

Displays 0.001 dB/0.0001 dB GPIB output.

Absolute power measurements (dBm) and relative power measurements (dBr) are displayed with 0.001 dB resolution.

During GPIB output, the data output resolution is 0.0001 dB.

High-speed, high-throughput measurements.

Up to 100 measurements/second

For all sensors, the Q8221 has a sampling rate of 100 times per second and a ranging rate (time required to move to different ranges) of up to 500 ms (20 ms minimum). In addition, the ability to transmit GPIB outputs at a high speed of 100 times per second dramatically increases the throughput of the production line.