How about you do a little searching yourself? It's not that hard. If you don't know where to start, use the Google search box right above the Post Reply button above.
Also you're in the wrong forum. This is for 405nm/Violet lasers. Look around a little more.
Sry, thought that Blu-Ray is 445nm. Search would be useful because these topics can be outdated that i would found. Maybe some mode can move it to right forum.