HL6712G algainp laser diode description the HL6712G is 0.67 m band algainp index-guided laser diode with a double heterostructure. it is suitable as light sources for barcode readers, levelers, laser printers, and various other types of optical equipment. hermetic sealing of the packages assure high reliability. features visible light output at wavelengths up to 680 nm single longitudinal mode low threshold current: 40 ma typ low astigmatism: 10 m typ operates at temperatures up to 50c built-in monitor photodiode ld pd 1 3 internal circuit package type
HL6712G: g1 2
HL6712G 2 absolute maximum ratings (t c = 25c) item symbol rated value unit optical output power p o 5mw pulse optical output power p o (pulse) 6 * 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 1s pulse width optical and electrical characteristics (t c = 25c) item symbol min typ max unit test conditions optical output power p o 5 mw kink free threshold current ith 40 65 ma slope efficiency h 0.3 0.55 0.7 mw/ma 3 mw/i (4 mw) Ci (1 mw) lasing wavelength l p 660 670 680 nm p o = 5 mw beam divergence (parallel) q // 5 8 11 deg. p o = 5 mw, fwhm beam divergence (perpendicular) q^ 22 27 37 deg. p o = 5 mw, fwhm monitor current is 0.25 0.6 1.25 ma p o = 5 mw, v r (pd) = 5 v astigmatism a s 10m p o = 5 mw, na = 0.4
HL6712G 3 typical characteristic curves 5 4 3 2 1 0 20 40 60 80 100 forward current, i f (ma) optical output power, p o (mw) optical output power vs. forward current t c =0 c 25 c 50 c 0 optical output power, p (mw) o 1.0 0.8 0.6 0.4 0.2 0 12345 optical output power vs. monitor current t c = 25 c v r (pd) = 5v monitor current, i (ma) s HL6712G - 40 - 20 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
HL6712G 4 typical characteristic curves (cont) threshold current vs. case temperature 100 50 30 20 0 102030405060 case temperature, t ( c) threshold current, i (ma) th c case temperature, t ( c) c case temperature, t ( c) c case temperature, t ( c) c 1.0 0.8 0.6 0.4 0.2 0 10 20 30 40 50 60 slope efficiency, h s (mw/ma) slope efficiency vs. case temperature 0 monitor current, i s (ma) 0.2 0 10 20 30 40 50 60 0.4 0.6 0.8 1.0 1.2 o v = 5v r (pd) p = 5mw monitor current vs. case temperature 0 204060 10 30 50 685 680 670 665 675 660 lasing wavelength, l p (nm) p o = 5 mw wavelength vs. case temperature
HL6712G 5 typical characteristic curves (cont) astigmatism vs. optical output power 18 16 14 12 10 8 012 5 3 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 250 200 150 100 50 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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