Who is the form of the poem sonnet by Billy Collins?

All we need is fourteen lines, well, thirteen now,

and after this one just a dozen

to launch a little ship on love's storm-tossed seas,

then only ten more left like rows of beans.

How easily it goes unless you get Elizabethan

and insist the iambic bongos must be played

and rhymes positioned at the ends of lines,

one for every station of the cross.

But hang on here while we make the turn

into the final six where all will be resolved,

where Laura will tell Petrarch to put down his pen,

take off those crazy medieval tights,

blow out the lights, and come at last to bed.