HL6714G algalnp laser diode literature order number rev 0 february 1997 description the HL6714G is a 0.67 m m band algainp index-guided laser diode with a multi-quantum well(mqw)structure. it is suitable as a light source for laser beam printers, levelers and various other types of optical equipment. hermetic sealing of the package assures high reliability. features visible light output at wavelengths up to 680 nm single longitudinal mode low astigmatism: 10 m m typ high output power: 10 mw (cw) built-in monitor photodiode
HL6714G 2 absolute maximum ratings (t c = 25 c) item symbol rated value unit optical output power p o 10 mw pulse optical output power p o (pulse) 12 * 1 mw ld reverse voltage v r (ld) 2v pd reverse voltage v r (pd) 30 v operating temperature topr C10 to +50 c storage temperature tstg C40 to +85 c note: 1. maximum 50% duty cycle, maximum 1 m s pulse width optical and electrical characteristics (t c = 25 c) item symbol min typ max unit test conditions optical output power p o 10 mw kink free threshold current ith 20 35 60 ma slope efficiency h 0.3 0.5 0.8 mw/ma 6 (mw)/ i (8 mw) C i (2 mw) ld operating voltage v op 2.7 v p o = 10 mw lasing wavelength l p 660 670 680 nm p o = 10 mw beam divergence (parallel) q // 5 8 11 deg. p o = 10 mw, fwhm beam divergence (perpendicular) q ^ 18 22 30 deg. p o = 10 mw, fwhm monitor current i s 0.3 0.8 1.5 ma p o = 10 mw,v r (pd) = 5 v astigmatism a s 10 m mp o = 10 mw, na = 0.55
HL6714G 3 typical characteristic curves optical output power, p (mw) 0 0 forward current, i (ma) f 20 40 60 80 100 1 2 3 4 5 t = 0 c c t = 25 c c t = 50 c c o optical output power vs. forward current 0 0 t = 25 c c v = 5v r(pd) 1 2 3 4 5 12 345 optical output power, p (mw) o monitor current, i (ma) s optical output power vs. monitor current ?0 ?0 0 20 40 angle (deg) relative intensity parallel perpendicular p o = 5 mw far field pattern 660 665 670 675 680 685 wavelength, l p (nm) relative intensity p o = 5 mw p o = 3 mw p o = 1 mw lasing spectrum
HL6714G 4 typical characteristic curves (cont) threshold current, i (ma) 100 10 50 10 0 20 30 40 50 60 case temperature, t ( c) c th threshold current vs. case temperature 20 slope efficiency, (mw/ma) 1 0 10 0 20 30 40 50 60 case temperature, t ( c) 0.8 0.6 0.4 0.2 h c slope efficiency vs. case temperature s monitor current, i (ma) 0 0 case temperature, t s 10 20 30 40 50 60 1 2 4 5 c t = 25 c c v = 5v r(pd) monitor current vs. case temperature ( c) 3 02040 10 30 50 676 674 670 668 672 666 case temperature, t c ( c) lasing wavelength, l p (nm) wavelength vs. case temperature 682 680 678 60 664 684 p o = 5 mw
HL6714G 5 typical characteristic curves (cont) astigmatism vs. optical output power 25 20 15 10 5 0 012 5 4 3 optical output power, p o (mw) astigmatism, a ( m m) t c = 25 c na = 0.55 s polarization ratio vs. optical output power 500 400 300 200 100 0 012 5 4 3 optical output power, p o (mw) polarization ratio na=0.4 na=0.25 t c = 25 c
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