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Fiber Optic Power Meters with Internal Sensor
Fiber Optic Power Meter
Easy-to-Read Large Digital Display
PM20 Power Meter with Fiber Adapter Removed
Additional SM05-Threaded Fiber Adapters Available Separately
Fiber Optic Power Meter Features
The PM20 Series of Fiber Optic Power Meters are robust, full-featured, handheld instruments, which together cover the full range of optical fiber applications within the 400 - 1700 nm range with optical powers ranging from -60 dBm to +23 dBm (1 nW - 200 mW). A rugged enclosure, internal sensors, and kickstand make these models ideal for field or lab applications.
Each console comes with the following: the console with built-in sensor, FC fiber adapter (for FC/PC or FC/APC), 12 VDC power supply (PMPS12), Certificate of Calibration, and operating manual.
Pulsed Laser Emission: Power and Energy Calculations
Determining whether emission from a pulsed laser is compatible with a device or application can require referencing parameters that are not supplied by the laser's manufacturer. When this is the case, the necessary parameters can typically be calculated from the available information. Calculating peak pulse power, average power, pulse energy, and related parameters can be necessary to achieve desired outcomes including:
Pulsed laser radiation parameters are illustrated in Figure 1 and described in the table. For quick reference, a list of equations are provided below. The document available for download provides this information, as well as an introduction to pulsed laser emission, an overview of relationships among the different parameters, and guidance for applying the calculations.
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Figure 1: Parameters used to describe pulsed laser emission are indicated in the plot (above) and described in the table (below). Pulse energy (E) is the shaded area under the pulse curve. Pulse energy is, equivalently, the area of the diagonally hashed region.
Is it safe to use a detector with a specified maximum peak optical input power of 75 mW to measure the following pulsed laser emission?
The energy per pulse:
seems low, but the peak pulse power is:
It is not safe to use the detector to measure this pulsed laser emission, since the peak power of the pulses is >5 orders of magnitude higher than the detector's maximum peak optical input power.
These adapters are compatible with devices that feature external SM05 threading such as our S150C Series Fiber Power Meter Sensors, PM160 wireless power meter, and the Fiber Optic Power Meters above. One PM20-FC wide-key FC/PC fiber adapter is included with each of the power meters sold above. For details on narrow versus wide key connectors, please see our Intro to Fiber tutorial.
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Region-Specific Adapters for the PMPS12
The PMPS12 is a 12 VDC power supply with a 1.8 m cable and 5.5 mm outer diameter DC connector. It operates at an input voltage of 90 - 264 VAC, and has a maximum current of 850 mA. This power supply ships with region-specific adapters included, shown in the image to the right.