Optical power meters and measurement tools

Multiport optical power meters

Standalone multiport instruments of the N774xC and predecessor N774xA families provide fast sampling, deep memory and fast data transfer, especially for multichannel applications.

Power sensor modules

Power sensor modules provide a front panel optical input that accepts various 81000xI connector interfaces for popular fiber connector types or bare fibers. Besides giving optical power in units of W or dBm or dB referred to a reference, calibrated for any wavelength in the available range, these advanced instruments provide high speed data logging of up to 20 k (100 k for the 81636B) values, triggered internally or externally.

Optical heads

Optical heads provide a 5 mm diameter detector area and allow flexible placement of the optical power meter which is then connected to the N7749C, 81618A or 81619A interface module in the mainframe. The functionality is the same as for the sensor modules and a choice of adapters allows input from popular connector types, bare fibers or open beams.

Return loss meters

Return loss meters use two power sensors and fiber couplers to provide a direct measurement of the optical return loss. One sensor measures the optical power reflected back to the instrument while the other monitors the optical power output from the instrument. The ratio provides the return loss. These instruments can use a tunable laser or fixed-wavelength external laser source and can also be used with Fabry-Perot lasers for very stable measurements.

See Keysight optical power meters in action

Lambda scan solutions for automating optical measurements and analysis

Snap-on connector interfaces streamline photonic testing

Benefits of d-shape connector adapters for optical power meter heads

Featured resources for the optical power measurement products

Frequently Asked Questions - Optical power meters

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