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Size:5dB
The optical attenuators mainly used in fiber optic to debug optical power performance & optical instrument calibration correction & fiber signal attenuation to ensure the optical power in a stable and desired level in the link without any changes on its original transmission wave.
Application:
The optical attenuator is widely used in fiber optic communication systems, fiber optic CATV, high power optical device measurement.
Parameters:
Fiber Connector: SC/UPC
Mold type:Single Mode
Attenuator db:5dB
Attenuation Tolerance: ±0.5dB
Return Loss :≥55dB
Polarization Dependent Loss:≤0.2dB
Core material: Ceramic
Using dustproof cap to protect the end-face
Operating Temp Range -40~80°C
Storage Temp Range -40~85°C
John Robertson
Reviewed in the United States on June 1, 2023
I work in the telecom industry. Are there higher quality attenuators than these? Yes. Do they cost a lot more? Also, yes.I measured these against a benchmark, and found one attenuator at 9.64dB and the other at 10.2dB (1310nm). That's not too far off, and well within acceptable tolerance for most users. It might have been nice if the range on two random attenuators was a little bit less (maybe within 0.2dB of each other), but optical polishing is still challenging to get consistent. In fact, this is where much of the expense of higher quality optical devices goes to...making consistent quality, or hand-matching specs, etc.For my needs, to attenuate power into an optical meter, these are just fine. I imagine if you could justify buying two or three sets, you would be able to match two specific attenuators quite closely. If I needed more, I'd certainly consider these again.
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