@zotezo To implement the same ad units for your AMP URLs you’ll need to inserter AMP ad unit code for your AMP URLs while keeping your non AMP ad units for you non AMP URLs. Traditional ads don’t work in AMP URLs as they are JavaScript based.
The easiest method to implement the same ad units in AMP urls would be to use an Ads plugin, with some plugins automatically converting traditional ads into AMP ads (for your AMP URLs).
Plugins such as Advanced Ads can perform this conversion automatically, or plugins such as AdInserter have conversion tools.
You can use the AdSense Help Center if you have any further issues with adding AMP ads to your site, or visit this help center article.
In relation to the pop up ads question you’ll need to check with the AdSense Help Center. We can only provide support for the AMP plugin.