Tunable FBG Optical Filter
WTF-200
FBG filter with both band-pass and band-rejection
Over +/-10nm wavelength tuning (> +/-5nm at 0.1nm BW)
High-power customization available
Wavelength-Tuning by FBG Compression
While wavelength-tuning is commonly achieved by stretching the FBG, here we use a proprietary compression technique that enables more than double the tuning range.
Principle of Operation
Typical Performance (BW = 0.3nm)
Specifications
type: T01 type: T02 ~ 03
type: T04 ~ 06
min. typ.
max.
min.
typ.
max.
min.
typ.
max.
unit
Wavelength tuning range
10
20
20
nm
3dB bandwidth1,3
0.08
0.1*
0.16
0.2 - 0.3
0.4 - 0.6
nm
Peak insertion loss 2,3
3.5
8
2.5
3.5
2.5
3.5
dB
Insertion loss variation2,3
0.2
0.5
0.2
0.5
0.2
0.5
dB
Out-of-band suppression3
23
26
23
26
23
26
dB
Notch depth4 (band-rejection)
3 - 6
10
15
dB
Center wavelength
1030 - 1070 or 1280 - 1330 or 1520 - 1610
nm
Max. input power
0.5
W
Optical fiber
SMF or PMF
Optical connector
FC or SC, SPC or APC
Dimension (W x H x D)
120 x 50 x 205
mm
Weight
1
kg
1. The 3 dB bandwidth (band-pass) may change by up to +/-0.05 nm when wavelength-tuned, with a tendency to broaden when tuned to shorter wavelengths.
* The 3 dB bandwidth will stay between 0.08 and 0.12 nm if the wavelength tuning range is restricted to 5 nm (i.e. +/-2.5 nm).
2. Insertion loss for FBG at 1550 nm region. Values may increase slightly at other wavelength regions.
3. Specifications for band-pass port only. Values may vary for band-rejection port.
4. Notch depth of band-rejection port is mentioned as a guideline only, for filters based on SMF. This guideline may not apply if the rejection port option is added after manufacturing has begun. Please consult for specific needs of the notch depth.
The above specifications may change without prior notice.
描述 [描述] 带通和带阻的光纤光栅滤波器