fiber Bragg grating
Fiber Bragg Gratings
Gain Flattening Filters for C- and L- bands(Gain flattening filter)

Main features:
·Customized gain flat contour
·Wide spectrum from 1520 nanometers to 1570 nanometers and 1560 nanometers to 1610 nanometers
·Low ripple
·Low insertion loss
·Non thermal packaging
·High strength and reliability
Main parameters:
|
Wavelength Range for C-band |
1520 to 1570 |
nm |
|
Wavelength Range for L-band |
1560 to 1610 |
nm |
|
Maximum Attenuation |
8 dB or more on request |
|
|
Attenuation Accuracy |
< ± 5% of attenuation |
|
|
Insertion Loss |
< 0.5 |
dB |
|
Operational Temperature Range |
0 - 70° |
C |
|
Fiber |
SMF-28 compatible, 1 meter |
|
|
Package Dimensions |
6.4 mm diameter x 64-95 mm L |
Fiber Gratings for Laser Resonators and Sensors(Fiber Bragg Grating)
Main features:
·Customized design
·Different wavelengths
·Optimized reflectivity and bandwidth
·High strength and reliability
Main parameters:
|
Wavelength Accuracy |
< ±0.5 |
nm |
|
Reflectivity |
1 to 99.9 |
% |
|
3-dB Reflection Bandwidth |
0.2 to 1 |
nm |
|
Grating Profile |
Uniform or apodized |
|
|
Insertion Loss |
< 0.1 |
dB |
|
Fiber |
Corning SMF-28 (other fiber types available) |
|
|
Recoating |
Acrylate or custom |
|
|
Pulling Strength |
> 100 |
kpsi |
50 / 100 GHz DWDM Gratings(Dense Wavelength Division Multiplexing Grating)
Main features:
·Near square reflectance spectral response
·Optimized 50 GHz or 100 GHz channel spacing
·High center wavelength accuracy
·Low channel crosstalk
·Low insertion loss
·Non thermal packaging
·High strength and reliability
Main parameters:
|
|
50 GHz |
100 GHz |
|
|
|
Center Wavelength and Accuracy |
on ITU grid offset < ± 0.05 nm* |
|
||
|
Cladding Mode Loss |
< 0.5 |
dB |
||
|
Reflection |
> 99.9 |
% |
||
|
Bandwidth |
50 |
100 |
GHz |
|
|
|
0.5 dB Reflection Bandwidth |
> 0.2 |
> 0.3 |
nm |
|
|
30 dB Transmission Bandwidth |
> 0.1 |
> 0.15 |
nm |
|
Adjacent Channel Crosstalk |
< - 25** |
< - 30 |
dB |
|
|
Non-adjacent Channel Crosstalk |
< - 30 |
< - 30 |
dB |
|
|
Insertion Loss |
> 0.2 |
dB |
||
|
Thermal Sensitivity |
< 0.5 |
pm/°C |
||
|
Operational Temperature Range |
0 - 70 |
°C |
||
|
Fiber |
SMF-28 compatible |
|
||
|
Package Dimensions |
6.4 mm f × 55 mm L |
mm |
||
|
* |
With package only |
|
** |
50 GHz gratings with adjacent channel crosstalk < -30 dB can be supplied on request |
