Yes. I have used several other libraries with AngularJs. Mostly I try to use angular only whenever possible, but when I use other libraries, it's typically in services/factories. Technically they should probably converted to angular directives, but who has time to rewrite a complex library.
For example, I use a growl/notifications from pnotify. I have a service called notify and it defines methods that I can call from controllers or directives to fire notifications. This is an oversimplified version to give you the idea:
angular.module('app', [])
.service('notify', function(){
//set any initialization or defaults.
jQuery.pnotify.defaults = { ... my defauls ... }
//return service as object methods to call
return {
growl: function(type, message){
jQuery.pnotify({ type: type, message: message, sticky: true, delay: 800 })
}
}
});