HL6314MG algainp laser diode description the HL6314MG is a 0.63 m band algalnp laser diode with a multi-quantum well (mqw) structure. it is suitable as a light source for laser poiters and optical equipment for amusement. application laser pointer features visible light output: 635nm typ. (nearly equal to he-ne gas laser) optical output power: 3 mw cw low operating current: 30 ma typ. low operating voltage: 2.7 v max.,
HL6314MG 2 package type ? HL6314MG: mg internal circuit ? HL6314MG ld pd 1 2 3 absolute maximum ratings (t c = 25c) item symbol rated value unit optical output power p o 3mw pulse optical output power p o (pulse) 5 *1 mw ld reverse voltage v r (ld) 2v pd reverse voltage v r (pd) 30 v operating temperature t opr C10 to +50 c storage temperature t stg C40 to +85 c note: 1. pulse condition: pulse width ?1s, duty ?50% optical and electrical characteristics (t c = 25c) item symbol min typ max unit test conditions optical output power p o 3 mw kink free threshold current i th 25ma operating current i op 30 ma p o = 3 mw operating voltage v op 2.7 v p o = 3 mw lasing wavelength l p 630 635 640 nm p o = 3 mw beam divergence (parallel) q // 6 8 10 deg. p o = 3 mw beam divergence (perpendicular) q ^ 23 30 39 deg. p o = 3 mw monitor current i s 0.15 ma p o = 3 mw, v r(pd) = 5 v
HL6314MG 3 typical characteristic curves 3 2 1 0 0 20 40 60 80 100 forward current, i f (ma) optical output power, p o (mw) optical output power vs. forward current ?c t c t c = -10 ? c t c = 25 = 50 ?c 0.2 0.15 0.1 0.05 0 01 3 2 optical output power, p o (mw) optical output power vs. monitor current monitor current, i s (ma) t c = 25 ?c v r (pd) = 5 v
HL6314MG 4 typical characteristic curves (cont) ?40 ?20 0 20 40 angle (deg) relative intensity parallel perpendicular p o = 3 mw far field pattern 0 0.2 0.4 0.6 0.8 1 t c = 25 ?c p o = 3 mw 625 650 630 645 640 wavelength, l p (nm) p o = 2 mw p o = 1 mw lasing spectrum relative intensity t c = 25 635 ?c 100 -10 0 102030 40 case temperature, t c (
c) threshold current, i th (ma) threshold current vs. case temperature 10 50
HL6314MG 5 1.0 0.8 0.6 0.4 0.2 -10 0 10 20 30 40 case temperature, t slope efficiency, h s (mw/ma) slope efficiency vs. case temperature ?c c () 50 0 -10 40 50 030 20 10 0.2 0.15 0.1 0.05 0 monitor current vs. case temprature case temperature, t c (
c) monitor current, i s (ma) p o = 3 mw v r(pd) = 5 v
HL6314MG 6 636 634 632 630 628 -10 50 040 30 20 10 case temperature, t c (
c) lasing wavelength vs. case temperature lasing wavelength, l p (nm) 638 640 642 644 p = 3 mw o 20 15 10 5 0 01 3 2 optical output power, p o (mw) astigmatism vs. optical output power astigmatism , as (
m) t c = 25 ?c na= 0.55
HL6314MG 7 500 400 300 200 100 0 01 3 2 optical output power, p o (mw) polarization ratio vs. optical output power polarization ratio t c = 25 ?c na= 0.4 na= 0.25
HL6314MG 8 polarization direction the polarization of 0.63 m lds is different from that of 0.83/0.78/0.67 m lds. the polarization direction of 0.63 m m lds is illustrated in the figure below. te mode
(electric field) tm mode
(magnetic field) ld top view
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