1 / 9

Conceptual relationships among TP2, TP3 and budget

This concept explores the relationships among TP2, TP3, and budget in terms of correlated penalties and stresses, as well as uncorrelated penalties and stresses. It proposes using PIE-D or equivalent throughout, utilizing TP3-accepted ISI generators as TP2 test channels, and incorporating a BT4 filter and EML source for TP3 reference transmitter. The goal is to achieve reasonable flexibility between correctable and uncorrectable impairments at TP2 without significantly impacting the budget. Penalty curves and budget limits are also considered.

calvinp
Download Presentation

Conceptual relationships among TP2, TP3 and budget

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Conceptual relationships among TP2, TP3 and budget Tom Lindsay

  2. Terms • Part A – correlated penalties and stresses • Part B – uncorrelated penalties and stresses

  3. part A relationships • TP3 will include ref Tx and emulate channel ISI • This setup will have a PIE penalty metric • Proposed TP2 test will include the DUT Tx and channel ISI • Penalty test limit should not be greater than TP3 penalty • The penalty value must relate directly to budget • Note – propose using PIE-D or equivalent throughout (I agree with Lew)

  4. part A details • Propose using TP3-accepted ISI generators as TP2 test channels (in SW) • Presumes TP3 generators capture/represent LRM fibers • Propose using BT4 filter (realizable) & EML source for TP3 ref Tx • Combined effects with PG probably ~Gaussian; correctable • 4.5 dB (TBD), PIE-D • Key budget value • 95% w/c offsets with ??? Cambridge set • 60-70 psec Gaussian pulse, 20-80% • FYI - close to present mask • Should offers reasonable flexibility between correctable and uncorrectable impairments at TP2 without significant impact to budget

  5. Penalty curves concept(originals from lindsay_01_0704) This needs to be redone, but colored lines are based on completely linear impairments which will correct well. Real lasers with non-linearities will not correct so well, so some room is required. Red is excessive, but green may be reasonable. Laser w/ nonlinearities?

  6. Estimated ref Tx (via 7.5 GHz filter)part A 10/7/04

  7. part B relationships • TP3 will add amplitude noise and jitter to emulate RIN, other Tx noise(?), and modal noise • This setup will have a OMA/noise ratio and jitter • Proposed TP2 test will impose limits on amplitude noise and jitter • RIN and other Tx noise portion limit must relate/translate to and be within RIN and other Tx noise portion of TP3 OMA/noise • Same concept for jitter • The OMA/noise value must relate to budget • (other) Jitter does not relate directly to budget, but TP2 and TP3 should relate closely

  8. part B details • Limit TP2 rms noise to • TBC • Same as RIN value used in TP3 test • Limit TP2 rms jitter to • TBD • Relate to 0.1 UI SJ used in TP3 test + allow for noise to jitter translation via edge rate

  9. Budget, vertical stresses and limits

More Related