HL6722G algalnp laser diode ade-208-220b (z) 3rd. edition january 1994 description the HL6722G 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 bercode scanner, 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 continuous operating output: 5 mw cw low voltage operation: 2.7 v max low current operation: 32 ma typ single longitudinal mode built-in monitor photodiode internal circuit ld pd 1 2 3
HL6722G 2 absolute maximum ratings (t c = 25 c) item symbol rated value unit optical output power p o 5mw pulse optical output power p o (pulse) 6 * 1mw 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 5 mw kink free threshold current ith 20 32 55 ma slope efficiency h 0.3 0.5 0.7 mw/ma 3 mw/i (4 mw) C i (1 mw) ld operating current iop 42 70 ma p o = 5 mw ld operating voltage vop 2.7 v p o = 5 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 beam divergence (perpendicular) q ^ 22 30 38 deg. p o = 5 mw monitor current i s 13map o = 5 mw, v r = 5 v
HL6722G 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
HL6722G 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
HL6722G 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
HL6722G 6 package dimensions unit: mm hitachi code
jedec code
eiaj code
weight ld/g1
? ? 1.1 g 1 2 3 1 2 3 9.0 +0 ?.025 f 1.0 0.1 0.4 +0.1 ? (0.65) (90 ) f f 7.2 +0.3 ?.2 f 6.2 0.2 ( f 2.0) emitting point 2.45 1.5 0.1 14 1 3 ? 0.45 0.1 3.5 0.2 0.3 glass f 2.54 0.35
HL6722G 7 when using this document, keep the following in mind: 1. this document may, wholly or partially, be subject to change without notice. 2. all rights are reserved: no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without hitachis permission. 3. hitachi will not be held responsible for any damage to the user that may result from accidents or any other reasons during operation of the users unit according to this document. 4. circuitry and other examples described herein are meant merely to indicate the characteristics and performance of hitachis semiconductor products. hitachi assumes no responsibility for any intellectual property claims or other problems that may result from applications based on the examples described herein. 5. no license is granted by implication or otherwise under any patents or other rights of any third party or hitachi, ltd. 6. medical applications: hitachis products are not authorized for use in medical applications without the written consent of the appropriate officer of hitachis sales company. such use includes, but is not limited to, use in life support systems. buyers of hitachis products are requested to notify the relevant hitachi sales offices when planning to use the products in medical applications. hitachi, ltd.
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