SFP and Cage footprint?

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Hi all, I am wondering:

  1. if there is an SFP (small form-factor pluggable optical trasciever, for telecom) footprint (and cage) in the standard libraries - or if someone is working on it?
  2. In my designs I’ve always used the 20-pin SMD connector togeter with the THT metal cage (that guides the pluggable SFP). Would this kind of hybrid footprint consisting of an SMD connector + THT cage be accepted into the libraries?
  3. if they need to be separate components, what mechanisms exist for ensuring correct positioning/alignment between the two connectors?
  4. Does anyone know if there are mechanical differences between SFP (1Gbit) and SFP+ (10Gbit) standards, or would the same footprint work for both?

I have been using this footprint:

sfp_and_cage
sfp_and_cage1468×586 7.88 KB

specifications e.g. here:
SMD connector: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1367073&DocType=Customer+Drawing&DocLang=English
Cage: https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/u77a1118xx0x.pdf

Thanks!

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