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RM3 SERIES BACKREFLECTION METER
USER’S MANUAL
Specifications
The following optical specifications describe the warranted characteristics of the unit ( Table 3). Supplementary specifications describe the typical
Table 3: Optical Specifications
Parameter |
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| Specification | ||
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| Multimode | |
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Operating wavelength | 980, | 1310, | 1480, 1550, | 850, 1310 nm | ||
| 1625, or 1650 ±10 nm | ±20 nm | ||||
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Fiber Type |
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| single* |
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| 9/125 |
| µm | multimode | ||
| (5/125 |
| Flexcor |
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| for the 980 nm) | 50/125µmor62.5/125µm | ||||
Detector type | mm diameter InGaAs | 3 mm diameter InGaAs | ||||
Range |
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| to | |
backreflection | 0 to |
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power | 0 to | 3 to | ||||
Absolute accuracy | ±1.0 dB 2,3 |
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| dB 4 | ||
backreflection |
| ±1. | ||||
power | ±0. |
| dBm | typical at | ±0. | dBm typical at |
| dBm5,6 |
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| dBm6 | ||
Relative accuracy | ±0.4 dB 3 |
| ±0.7 dB 4 | |||
backreflection |
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power | ±0.05 dB (<5 dB loss), | ±0.15 dB (>5 dB loss) 6,7 | ||||
| ±0.15 dB (>5 dB loss) 5 |
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Output connector type |
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Remote interface | RS232 or IEEE 488 (GPIB) |
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1Reduced backreflection accuracy in the last 10dB of range based on termination effectiveness. Depending on the measurement setup, measurements with lower levels are possible at reduced accuracy.
2User-calibration supported.
3For a typical application, add ±0.4 dB for readings between
4Following the
5Add ±0.1 dB between
6Immediately after performing a dark measurement.
7Add ±0.1 dB between 0 to 3 dBm and between
10112341 Rev 002 | Page 15 of 39 |