Optical Tunable Filter
OTF-320
The OTF-320 is a manually tunable optical filter that features a wavelength indicator. Tuning is achieved by rotating a dial on the side of the unit, and the meter on the top of the unit provides the wavelength reference. A wide choice of tunable filter wavelength range and profile are available from santec's selection of thin-film based filters.
Features
80nm tuning range Excellent transmission characteristics and low PDL and PMD over whole tuning range Analog wavelength indicator Wavelength tuning knob with lock function
Applications
DWDM transmission systems
ASE noise suppression
Incoherent light source
Fiber sensing
Measurement Data
Table1. Optical Specifications
Parameter
Units
Performance
Wavelength range
nm
1530 to 1610
1530 to 1570 or 1570 to 1610
1270 to 1350
1510 to 1630
Tuning range
nm
80
40
80
120
Insertion loss
dB
Ref. Table 2
Ref. Table 3
Bandwidth @-3dB
nm
Ref. Table 2
Ref. Table 3
Bandwidth @-20dB
nm
Ref. Table 2
Ref. Table 3
PDL
dB
< 0.1 (single stage) / < 0.2 (double / triple stage)
Return loss
dB
> 45
Operating Temperature
ºC
0 to +70
Dimentions (Width x Depth x Height)
mm
171x38x38
Table2. Filter Selection
Bandwidth Type
03
04
06
Filter Structure
S1
S2
S3
S1
S2
S3
S1
S2
S3
Bandwidth @-3 dB (nm)
0.4±0.1
0.3±0.1
0.25±0.1
0.5±0.1
0.35±0.1
0.3±0.1
0.7±0.1
0.5±0.1
0.4±0.1
Bandwidth @-20 dB (nm)
<3.8
<1.5
<1.2
<5.0
<1.7
<1.2
<7.5
<2.4
<1.5
Insertion Loss (dB)
<3.0
<5.5
<7.0
<3.0
<5.0
<6.5
<2.0
<3.0
<4.0
Bandwidth Type
08
12
24
50
Filter Structure
S1
S2
S3
S1
S2
S3
S1
S2
S3
S1
Bandwidth @-3 dB (nm)
0.95±0.1
0.65±0.1
0.5±0.1
1.3±0.1
0.9±0.1
0.7±0.1
2.9±0.3
1.95±0.3
1.5±0.3
5.5±1.0
Bandwidth @-20 dB (nm)
<9.8
<3.0
<2.2
<15.0
<4.5
<3.0
<32.0
<10.0
<6.5
<60(Typ.)
Insertion Loss (dB)
<2.0
<2.5
<3.0
<1.5
<2.0
<2.5
<2.0
<2.0
<2.5
<2.9
Table3. Filter Selection
Filter Type
05 (1510-1630nm)
12 (1270-1350nm)
Filter Structure
S1
S2
S3
S1
S2
S3
Bandwidth @-3 dB (nm)
0.5±0.1
0.35±0.1
0.3±0.1
1.3±0.15
0.9±0.1
0.7±0.1
Bandwidth @-20 dB (nm)
<5.0
<1.7
<1.2
<15.0
<4.5
<3.0
Insertion Loss (dB)
<5.0
<7.0
<8.5
<2.5
<3.0
<3.5
Please contact Santec's customer service to discuss any special requirements
Ordering Code
商品属性 [波长] 1270 to 1630nm