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The Fiber Optic Power Meter (FOM) measures optical power on fiber optic
cables. It indicates any power loss on tested cables using any digital
multimeter (DMM) or graphical multimeter (GMM) that has a 10 MW input impedance,
standard diameter banana jacks, and mVdc capability. The Fiber Optic Light
Source (FOS) is used as a light source with the FOM or other fiber optic
meters.
General Specifications
Power Meter Specifications
| Output: |
1 mV per 1 dB |
| Input Connector Type: |
Fixed ST |
| Photodetector Type: |
Germanium |
| Application Range: |
800 to 1600 nm |
| Calibrated wavelengths: |
850, 1300, and 1550 nm |
| Acceptable fiber types (sizes): |
9/125 to 100/140 mm |
| Operating range: |
+3 to -50 dBm |
| Maximum power level: |
+5 dBm |
| Absolute accuracy: |
±0.25 dB, (Specified at 25°C & -10.0 dBm per
NIST standard) |
| Relative accuracy: |
±0.15 dB, (Specified over any 10 dB within
measurement range) |
| Repeatability: |
±0.04 dB |
| Battery type: |
9V alkaline, NEDA 1604A or IEC 6LR61 |
| Battery life: |
16 hours minimum, 100 hours typical, 9V
alkaline |
| Low battery indication: |
Blinking LED indicator |
| Operating temperature: |
0 to +40°C |
| Storage temperature: |
-20 to +70°C |
| Humidity: |
0 to 40°C, up to 75% RH |
Electromagnetic Compatibility:
RF Field £1
V/m
RF Field = 3 V/m |
Total Accuracy =
Specified
Accuracy
Specified Accuracy + 2.5 dB |
Source (850/1300) Specifications
| Type: |
Infrared LED |
| Wavelength: |
850/1300 ± 30 nm, -40/+50 nm |
| Output power: |
-20 dBm, nominal into 62.5/125 micron multimode
fiber |
| Output connector type: |
Fixed ST |
| Beam divergence: |
0.3 radians |
| Pulse duration: |
Continuous wave |
| Maximum output: |
200 mW (radiated into free space) |
| Stability: |
±0.2 dB per 8 hours at 20°C after 20 minute
warmup |
| Temperature coefficient: |
-0.08 dB per °C, < 18°C or > 28°C |
| Battery type: |
9V alkaline, NEDA 1604A or IEC 6LR61 |
| Battery life: |
16 hours minimum, 24 hours typical, 9V
alkaline |
| Low battery indication: |
Blinking LED indicator |
| Operating temperature: |
0 to +40°C |
| Storage temperature: |
-20 to +70°C |
| Humidity: |
0 to 40°C, up to 75%
RH |
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