Can I use bootcamp with an SSD in my optical bay?

Sadly no, this will likely not work ;-{

First the optical bay has a speed issue. Review this OWC Data Doubler you’ll see your system has a Red note. The issue is not the carrier, it’s the systems optical drives SATA port. So you’ll need to get a fixed SATA II (3.0 Gb/s) most SSD’s sold today are either fixed SATA III (6.0 Gb/s) or auto sense which allows them to work in either a SATA I, II or III system. This is where the auto sense logic wont work correctly as the system will confuse it.

Now you have a second issue if you decide to swap the drives around as the HD bay’s port has additional logic to protect the HDD from a head crash (Crash Guard) so you then put your HD’s data at risk.

Then you have an issue with BootCamp as it must be on the Boot Drive.