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AOS broadband FBG filter 1550nm
Utilizing "chirped" (linear variation of the period within the FBG structure) fiber Bragg grating technology, we are able to provide FBGs with very wide bandwidth and high rejection. We can offer a wide range of center wavelengths, bandwidths and reflectivities.
Product features:
Part Number:--
Application area:WDM 1300/1550nm band-stop filter、 ASE filtering, noise suppression、 Fiber internal reflector
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Parameter
Parameter | Advanced | Standard |
Operating wavelength | 800 .. 1620nm | 1535 ..1565nm |
Reflectivity | 5 .. 99.9% | |
FWHM | 2 .. 70 nm | |
Insertion loss | <0.15 dB (*) | |
Terminal connection method | Bare fiber、FC/PC、FC/APC、ST、SC/PC、SC/APC、DIN、SMA | |
Packaging | 3mm standard tube (different lengths), boxed | |
On the lower wavelength side of the FBG, the IL can be significantly higher due to radiation pattern issues.
Spectral characteristics (example)

Product Test Report
Parameters | Requirement | Measurement | Unit |
Center Wavelength | ~1550 | 1550.42 | nm |
Bandwidth (FWHM) | >=30 | 34.3 | nm |
Reflectivity | >95 | 99.64 | % |
side lobe Suppression | dB | ||
Conditions | SMF-28e Fiber,FC/APC Connectors | ||
Fiber Bragg Grating Spectral Response


Test report 2023/09/18
Purpose of the experiment Test 1550nm broadband FBG filter
Experimental instruments 1550nm broadband FBG filter, 1550nm ASE light source, spectrometer, optical circulator.
1、Test light source spectrum

2、Measured spectrum
Transmission spectrum

Reflectance spectrum

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