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| hl6321/22g algainp laser diodes description the hl6321/22g are 0.63 m m band algainp laser diodes with a multi-quantum well (mqw) structure. they are suitable as light sources for laser levelers and optical equipment for measurement. application laser levelers measurement features visible light output: 635nm typ (nearly equal to he-ne gas laser) optical output power: 15 mw cw low operating current: 105 ma max low operating voltage: 2.7 v max ld ld pd pd 1 1 3 3 2 internal circuit
hl6321g internal circuit
HL6322G package type
hl6321/22g: g2 2
hl6321/22g 2 absolute maximum ratings (t c = 25c) item symbol value unit optical output power p o 15 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 optical and electrical characteristics (t c = 25c) item symbol min typ max unit test conditions optical output power p o 15 mw kink free threshold current ith 20 75 ma operating current i op 105 ma p o = 15 mw operating voltage v op 2.7 v p o = 15 mw slope efficiency h s 0.3 0.7 mw/ma 9(mw)/(i(12mw)Ci(3mw)) lasing wavelength l p 625 635 642 nm p o = 15 mw beam divergence (parallel) q // 5 8 11 deg. p o = 15 mw beam divergence (perpendicular) q^ 24 30 36 deg. p o = 15 mw monitor current is 0.07 0.26 0.45 ma p o = 15 mw, v r(pd) = 5 v hl6321/22g 3 polarization direction the polarization direction is tm mode. the polarization of 0.63 m m lds is different from that of 0.83/0.78/0.67 m m lds. the polarization direction of 0.63 m m lds is illustrated in the figure below. electric field tm mode magnetic field ld top view |
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