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Rifocs 578L Optical power meter
The 578L benchtop optical power meter is a versatile instrument designed to meet the needs of customers conducting fiber optic insertion loss tests and measurements in manufacturing or laboratory settings. With a measurement range from +25 to -50 dBm, the 578L is ideal for performing measurements on CATV systems, optical amplifiers, and other high power sources. The 578L features 980 nm, 1310 nm, and 1550 nm calibration wavelengths.
The 578L prints customized labels containing measurement, date, and time information when connected to a parallel or serial printer. Up to seven different label formats can be stored in non-volatile memory for later use. A built-in serial port allows the 578L to be controlled remotely from a computer, enabling the automation of complex or repetitive measurements. Up to 16 578L optical power meters can be “daisy chained” via an integral I2C interface to make a multi-channel test system controlled by a designated “reference unit.”
The 578L also features a BNC analog output interface, allowing users to perform discontinuity measurements or monitor optical switch performance without an optical-to-electrical converter. The analog output voltage is calibrated directly to the LCD readout, ensuring accurate and repeatable measurements when using an external voltmeter or chart recorder.
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578L
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Specifications
| Detector type | 2mm indium-gallium-arsenide (inGaAs) |
| Calibration wavelengths | 980 nm, 1310 nm, and 1550 nm |
| Power range | +25 to -50 dBm |
| Absolute accuracty | ±0.25 dB at calibration conditions |
| Linearity: ±1.0 dB ±0.5 dB ±0.2 dB ±0.05 dB ±0.5 dB |
+25 dBm to +22 dBm +22 dBm to +18 dBm +18 dBm to +10 dBm +10 dBm to -45 dBm -45 dBm to -50 dBm |
| Resolution | 0.01 dB/dBm 0.001 mW/µW/nW |
| Wavelength dependence 600 to 660 nm 820 to 880 nm 975 to 985 nm 1270 to 1330 nm 1500 to 1625 nm |
n/a n/a 0.025 dB/nm 0.033 dB/nm 0.0016 dB/nm |
| Power requirements | 100 V AC to 250 V AC, 50 to 60 Hz |