99 hl6312/13g algainp laser diodes description the hl6312/13g are 0.63 ? band algainp laser diodes with a multi-quantum well (mqw) structure. wavelength is equal to he-ne gas laser. they are suitable as light sources in bar code readers, laser levelers and various other types of optical equipment. hermetic sealing of the package achieves high reliability. features visible light output: l p = 635 nm typ (nearly equal to he-ne gas laser) optical output power: 5 mw cw low operating voltage: 2.7 v max single longitudinal mode built-in photodiode for monitoring laser output
hl6312/13g 100 absolute maximum ratings (t c = 25?) item symbol rated value unit optical output power p o 5 mw pulse optical output power p o (pulse) 6 * 1 mw ld reverse voltage v r (ld) 2 v pd reverse voltage v r (pd) 30 v operating temperature topr ?0 to +50 ? storage temperature tstg ?0 to +85 ? note: 1. pulse condition : pulse width 1 ? , duty 50% optical and electrical characteristics (t c = 25?) item symbol min typ max unit test conditions optical output power p o 5 mw kink free threshold current ith 20 45 70 ma operating current iop 55 85 ma p o = 5 mw operating voltage vop 2.7 v p o = 5 mw lasing wavelength l p 625 635 640 nm p o = 5 mw beam divergence (parallel) q // 5 8 11 deg. p o = 5 mw beam divergence (perpendicular) q^ 25 31 37 deg. p o = 5 mw monitor current is 0.2 0.4 0.8 ma p o = 5 mw, v r = 5 v
hl6312/13g 101 typical characteristic curves
hl6312/13g 102 typical characteristic curves (cont)
hl6312/13g 103 typical characteristic curves (cont)
hl6312/13g 104 polarization direction the polarization direction is tm mode. the polarization direction of 0.63 ? ld? is different from that of 0.83/0.78/0.67 ? ld?. the polarization direction of 0.63 ? ld? is illustrated in the figure below.
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