| Detector type selection guide |
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| There are several detector types, they have different applications based on wavelength, power, size and price so several factors must be considered. |
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| For further details see website: How To Choose an Optical Selector |
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| Summary of detector types |
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| Si = Silicon. This is suitable for wavelenghs in the visible region and 850nm (multimode). It is only used on out Si5 large area detector see below |
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| Ge = Germanium. This is suiable for Multimode and Singlemode wavelengths and is in our SM+MM test kits |
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| InGaAs = Indium Gallium Arsenide. This has the best response to Singlemode wavelengths and is in our SM test kits. |
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| Overview, the key points are highlighted. |
Detector type |
Power level |
Instrument interface |
Connectors
Single fiber = SC, LC, FC, ST etc |
| Ge power meter popular choice used for most MM and SM+MM applications. SC, LC, ST etc |
Ge |
-60 to +15dBm, damage +20dBm |
SC |
Single fiber |
| High power Ge power meter (2 millimeter size). Specialised power meter this power level very rarely needed. |
Ge, High power |
-40 to +33dBm, damage +35dBm |
7/8" |
Single fiber |
| Ge power meter with 5mm detector size. Suits MM and SM+MM applications. SC, LC, ST etc and MPO-12 and is Biggest selling MPO power meter. |
Ge, 5mm large area detector |
-40 to +15dBm, damage +20dBm |
7/8" |
Single fiber, MPO-12 |
| Ge power meter with 7mm detector size. Suits MM and SM+MM applications. SC, LC, ST etc and MPO-12 / MPO-16 |
Ge, 7mm large area detector |
-40 to +15dBm, damage +20dBm |
7/8" |
Single fiber, MPO-12, MPO-16 |
| InGaAs power meter, with 20dB filter. A solution for SM high power applications in practical use. SC, LC, ST etc |
InGaAs with 20dB filter |
-40 to +24dBm, damage +27dBm |
SC |
Single fiber |
| InGaAs power meter, with 10dB filter. A solution for SM high power applications in practical use. SC, LC, ST etc |
InGaAs with 10dB filter |
-60 to +24dBm, damage +27dBm |
SC |
Single fiber |
| InGaAs power meter popular choice for most SM applications. SC, LC, ST etc |
InGaAs no filter |
-70 to +10dBm, damage +15dBm |
SC |
Single fiber |
| High power InGaAs power meter (2 millimeter size). Specialised power meter this power level very rarely needed. |
InGaAs, High power |
-40 to +33dBm, damage +35dBm |
7/8" |
Single fiber |
| Ge power meter with 5mm detector size. Suits high accuracy SM applications. SC, LC, ST etc and MPO-12 |
InGaAs, 5mm large area detector |
-60 to +10dBm, damage +15dBm |
7/8" |
Single fiber, MPO-12 |
| Si power meter with 5mm detector size. Suits 660nm POF fibre, and MM to 850nm. SC, LC, ST etc and MPO-12. Relatively low cost. |
Si, 5mm large area detector |
-60 to +10dBm, damage +15dBm |
7/8" |
Single fiber, MPO-12, POF connectors |
