Optical power meter provides 100,000 readings/sec, 100-dB dynamic range

November 28, 2005 Boulder, CO -- dBm Optics recently introduced its Model 4100 Optical Power Meter. The device offers 100,000 readings per second, NIST traceability, and a dynamic range of greater than 100 dB. Other features of the device include a USB flash memory drive and a large color touch-screen display.

November 28, 2005 Boulder, CO -- dBm Optics recently introduced its Model 4100 Optical Power Meter, which the company says offers an unparalleled combination of speed, accuracy, and repeatability. The device offers 100,000 readings per second, NIST traceability, and a dynamic range of greater than 100 dB. Other features of the device include a USB flash memory drive and a large color touch-screen display.

According to the company, the 4100 combines 100,000 rps optical power meter modules with a powerful processor that can handle this exceptional measurement speed. When operated with two channels, each channel of the device still measures at 100,000 rps, says the company. The device is designed to capture an extended range of signal levels at a single sensitivity setting, enabling wide dynamic range within a single optical sweep. The meter has a dynamic range of >65 dB at full speed, eliminating the delay that similar meters suffer from range transitions required by lower instantaneous range, says the company.

When used with the company's Model 202 optical power meters, the polarization dependency of the 4100's power measurements is less than 0.0015 dB, thus reducing a significant source of measurement inaccuracy. The 4100 provides repeatability of ±0.005 dB for most typical connector insertion variations including +-1 mm ranges in the x and y dimensions and a �1 mm to +3 mm range in the z dimension.

The company says the device's 4" x 6" VGA color display affords excellent visualization of measurements directly on the power meter without the need to export data to a PC. Trends, drifts, noise, and perturbations are all clearly indicated on the graphical display.

The device's removable USB flash memory drive makes transferring data to Excel or a mathematics package very simple, says the company. Remote data transfer via Ethernet or GPIB is also straightforward: the device enables connection to a network to retrieve data from any PC on the network, even to remote locations via VPN.

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