DataTables and Laravel - can't get them to talk to each other properly

This could be either a DataTables problem or a Laravel one. I just don't know. I am new to them both. I have both working stand alone now I want them to interact. I want to get my data from a Laravel source.
In a nutshell my problems is that I can get to the Laravel routes.php but I don't have the required info to route to my controllers, I can only get the default home page.
In DataTables I have

bProcessing: true,
bServerSide: true,
sAjaxSource: "http://opm.picturenet.co.za/laravel/public_html/index.php",
       "fnServerData": function ( sSource, aoData, fnCallback ) {
            $.ajax( {
                "dataType": 'json',
                "type": "GET",
                "url": sSource,
                "data": aoData,
                "success": fnCallback
            } );
        },

In Laravel I have

echo 'bla bla';
Route::get('/', function()
{
	return View::make('home.index');
});
//Named Route
Route::get	 ('types', 				array('uses'=>'types@index',	'as'=>'types'));

I get the 'bla bla' display so the sAjaxSource is at least right but I have no routing info.
I have tried
sAjaxSource: "http://opm.picturenet.co.za/laravel/public_html/index.php/types",
sAjaxSource: "http://opm.picturenet.co.za/laravel/public_html/index.php?types",
sAjaxSource: "http://opm.picturenet.co.za/laravel/public_html/index.php?route=types",
but I either get a 404 or else the home page

Can anyone who has done this give me some sample code?
As a note. I had a lot of trouble with Laravel and 404 errors when I first tried Laravel but I got it right so if you tell me it is about .htaccess and mod_rewrite again I won't be suprised but I can find no errors there at present.
I just need to know what parts of my code are OK. I just don't know at present so don't know what to look for. Disappearing up my own fundamental orifice.