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