| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 462468 | Optical Fiber Technology | 2011 | 5 Pages |
The In-Band OSNR of polarization-multiplexed signals in deployed networks may be determined non-intrusively with a novel modulation-format-agnostic approach suitable for implementation in field-portable optical spectrum analyzers. This approach advantageously makes use of available optical taps in the network for simultaneous measurement of all the channels of a high-bandwidth DWDM system. We have confirmed the validity of this approach using measurements acquired on polarization-multiplexed signals in representative high-bandwidth network testbeds.
► In-Band OSNR measurement technique for polarization-multiplexed signals. ► Non-Intrusive simultaneous measurement of all channels via system taps. ► Performance demonstrated on 40G PM-QPSK, applicability to 100G PM-QPSK discussed.
