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  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 323 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
  • Notice: Trying to access array offset on value of type null in linked_field_field_attach_view_alter() (line 326 of /var/www/optcom.polito.it/sites/all/modules/linked_field/linked_field.module).
Mar
23
2016
By admin

Pierluigi Poggiolini of the OptCom group has given a tutorial talk at OFC 2016 in Anaheim titled "Recent Advances in Non-linear Fiber Propagation Modeling".  The slides of his speech can be downloaded at the bottom of this post, in the attachment section. You may need to click "read more" to get there.

The presentation has also been recorded and can be viewed at the OFC 2016 website (you need attendee credentials to view it).

The abstract of the tutorial follows:

Tags: ofc / ofc16 / egn model
Oct
1
2015
By admin

The OptCom group has carried out a thorough investigation of the so-called “symbol rate optimization” (SRO) strategy, which improves system performance by mitigating the impact of fiber non-linearity. The investigation was pushed to C-Band and showed that even in fully-loaded WDM systems SRO is quite effective. In fact, its effectiveness tends to grow with WDM bandwidth.

Tags: ecoc / ecoc2015 / sro / egn model
Sep
28
2015
By admin

The OptCom group has carried out a ground-breaking experiment of ultra-long haul transmission, proving the effectiveness of the so-called “symbol rate optimization” (SRO) strategy to improve system  performance. 19 PM-QPSK channels at 128 Gb/s were sent over a link with 110 km span length and EDFA-only amplification. The fiber was PSCF, provided by SEC (Sumitomo Electric Industries). A system reach of over 14,200 km was obtained, with a 12.5% reach gain obtained through SRO, vs. conventional single-carrier transmission. SRO was implemented by subdividing each channel into subcarriers.

Tags: ecoc / ecoc2015 / egn model / sro
Jan
21
2015
By admin

The EGN model (download EGN model paper) provides excellent accuracy in predicting the amount of non-linearity (or non-linear interference noise, NLI) affecting each channel in a WDM system.

 

See below the June 2014 news for more details. However, the EGN model is substantially more complex than the GN model. 

Tags: egn model
Sep
21
2014
By admin

Three OptCom papers on non-linearity modeling and system impact have been accepted at ECOC 2014. They make use of the high-accuracy non-linear propagation EGN model to perform advanced studies of special system conditions. They can be dowloaded directly below.

Tags: ecoc / egn model
Jun
21
2014
By admin

The paper on the enhanced version of the GN model (the EGN model) is now available on Optics Express. The EGN model achieves excellent accuracy in predicting the power of non-linearity interference (NLI) that perturbs each transmitted channel. A version of the same paper that includes extended appendices on formulas derivations can be downloaded from arXiv: download paper with extended appendices from here. The EGN model has no limitations related to transmission format, Baud rate, channel spacing, number of channels, amplification type, span len

Tags: egn model