Labels:diagram | text | sketch | technical drawing | line | origami OCR: MIRRORS MIRRORS GaAs Wafers PULSED LASER * 8.88 50:50 BEAM SPLITTER WEIGHTING MACHINE PAIR OF MIRRORS MOUNTED ON ADJUSTABLE SLIDE TABLE WITH VERNIER PRECISION. EACH MICRON MOVEMENT OF TABLE ADDS 2 MICRONS TO PATH LENGTH OF LIGHT. THIS CORRESPONDS TO ROUGHLY 6.6 FEMTOSECONDS OF PHASE DELAY