AWG Characterization
For some details on spectral characterization see the technical note: AWG_Characterization
A. Test and Measurement
Experimental
setup
Spectral response of a 48-channel AWG.
B. Data Analysis: Specifications
The data shown in the above figure are analyzed to extract the parameters shown in Table 1. These are typical values. The parameter definitions are given in Telcordia documents. A summary is given in the attached article as well: awg_characterization.pdf.
|
Table
1. Typical values for MUX/DMUX Parameters |
|
|
Parameter (Unit) |
Value |
|
Passband
width (GHz) or (nm) |
25
or 0.1 |
|
Passband
uniformity (ripple) (dB) |
1.5 |
|
Insertion
loss (IL) (dB) |
5 |
| IL
uniformity (dB) |
1.5 |
|
PDL
(dB) |
0.5 |
|
Adjacent
crosstalk |
25 |
| Non-adjacent
crosstalk (dB) |
30 |
|
Integrated
average crosstalk (dB) |
20 |
|
Return
loss (DMUX) (dB) |
45 |
|
Directivity
(MUX) (dB) |
50 |
|
Chromatic
dispersion (ps/nm) |
10 |
|
Differential
group delay (ps) |
0.5 |
© 1999 Anis Rahman