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IDPFBG–series
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DWDM FBG
Description
In DWDM system, the high channel isolation is necessary to avoid cross talk between channels. The DWDM Gratings are applied in disjunctive or insertion pathway to increase or decrease the filter. Idealphotonics offers 50/100/200GHz gratings spacing ITU grid, it has a flat top, high isolation, low insertion loss and low polarization dependent loss characteristics. The DWDM gratings are available individually packaged or be combined with multiple filters as a multiplexer/demultiplexer
· High spectral efficiency and low insertion loss
· Good Dispersion characteristics High Isolation
· Low Polarization Dependent Loss
Application
· DWDM System
· ASE Filtering and CW Locking OADM Module
Specification
|
Parameter |
Unit |
Specification |
Tolerance |
|
Center Wavelength |
nm |
S+C+L band |
Custom |
|
Reflectivity |
% |
> 99.95 |
— |
|
Bandwidth (FWHM) |
nm |
50/100/200GHz Spacing ITU Grid At 50&100GHz Spacing or Custom |
Bandwidth:100GHz Reflection@-0.5dB : >0.3 Reflection @-25dB : 0.75 Bandwidth:50GHz Reflection @-0.5dB : >0.2 Reflection @-25dB : 0.5 |
|
Adjacent Channel |
dB |
>25 |
— |
|
Insertion loss |
dB |
Typical 0.2 |
— |
|
Cladding mode loss |
dB |
<0.4 |
With double cladding suppressed fiber |
|
Optical Connector |
— |
FC/APC, FC/UPC |
Custom |
|
Fiber Type |
— |
Corning SMF-28 or equivalent |
— |
Ordering Information
IDPFBG
1550.1
99.5
2.0
A
T
①
②
③
④
⑤
① ：Center Wavelength
② ：Reflectivity
③ ：Bandwidth（FWHM）
④ ：Optical Connector：A：FC/APC，B：FC/UPC，C：Custom，N：None
⑤ ：Athermal Packaging：T：Standard,C：Custom,N：None
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