{HEAD ~ a plunger body} having a port between {TAIL ~ said laser diode} and said receptor, wherein said port is aligned with said laser beam 
{ HEAD ~ a plunger body } having a port between { TAIL ~ said laser diode } and said receptor , wherein said port is aligned with said laser beam
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH