I have a Cisco SFP module that I might need in a few weeks, I don't want to pull it out but I wanted to know if I shutdown the port does it turn off the SFP module, I don't want to leave the laser on if it doesn't need to be powered on.
I can't find anything in the documentation indicating any way of ensuring the laser is off. The only things I find are a bunch of warnings which seem to indicate that once it's plugged in the laser may be on. If it's only a few weeks I would just make sure the dust cap is installed and don't worry about it as these devices are designed to run for years. Otherwise pull the SFP. Cisco recommends limited plugging and unplugging of SFPs though. I'm speculating but this seems to indicate that the laser is always on when the SFP is installed and repeated removals might shorten the life of the SFP.