THORLABS INT-COM-1300 Operation Manual page 13

to get the OUTPUT signal nearly independent to input polarization changes. Figure 2
and Figure 3 show the typical spectral behavior of the INT-COM-1300 measured
from 1300nm IN to PROBE port and from 1300nm IN to VOA IN port.
Figure 2: INT-COM-1300 coupling ratio from 1300nm IN to PROBE
Figure 3: INT-COM-1300 coupling ratio from 1300 IN to VOA IN
For optimal operation of the balanced detector the optical path length of the two input
channels should be matched. Therefore the optical path length from VOA IN to
VOA OUT port (including the VOA) should be twice as long compared to the optical
100
80
60
40
20
0
1200 1250
Wavelength (nm)
4
3
2
1
0
1200 1250
Wavelength (nm)
1300 1350
1300 1350
3 Detailed Description
1400
1400
INT-COM-1300 / page 7