TMC-4F30-XXX vcsel to-46 metal can for gener al pur pose features: ? industry standard to-46 package with flat window glass. ? low dependence of power output over temperature. ? symmetrical beam. ? packaged with a photodiode. ? cost-effective laser light source. electro-optical characteristics: parameters symbol min typ max unit test conditions (1) threshold current i th 5 10 ma output power p o 1 2 4 mw i f =15 ma (2) operating current i op 12 ma adjustable to establish 1.5 mw output power slope efficiency h 0.20 mw/ma i f =15 ma (3) wavelength l p 820 850 870 nm i f =15 ma forward voltage v f 2.0 2.2 2.5 v i f =15 ma breakdown voltage v bd 10 15 v i r =10 m a series resistance r s 40 w i f =15 ma monitor current i m 1 2 ua v r =5 v, p o = 1.5 mw beam divergence q 8 degree i f =15 ma (4) notes: 1. all parameters except mentioned are measured at i f =15 ma, 25 c, cw. 2. higher power can be provided under request. 3. slope efficiency is defined as d p/(15-i th ) at 25 c. 4. beam divergence is defined as the angle of light intensity at full width at half maximum (fwhm). thermal characteristics: parameters symbol min typ max unit test conditions thermal resistance r th 900 c /w t a =25 c i th temperature variation d i th -1.5 1.5 ma t a =0~70 c v f temperature coefficient d v f / d t -3.0 mv/ c t a =0~70 c, i f =15 ma b temperature coefficient dh / d t -0.20 %/ c t a =0~70 c, i f =15 ma f p temperature coefficient dl p / d t 0.06 nm/ c t a =0~70 c, i f =15 ma absolute maximum ratings: parameters min max unit conditions storage temperature -40 125 j operating temperature -20 85 j lead solder temperature 260 j 5 seconds continuous forward current 40 ma continuous reverse voltage 10 v
tmc-4f30 fig. 1 typical optical characteristics fig. 2 typical electrical characteristics fig. 3 spectrum when driving current 15 ma fig. 4 temperature dependence of threshold current 3 transverse modes typically. warning: the vcsel is a class iiib laser in the safety standard ansi z136.1 and should be treated as a potential eye hazard. 0 5 10 15 20 0 1 2 3 4 typical voltage vs current volt age (v) current (ma) 0 5 10 15 20 0 1 2 3 4 i th typical output power vs current out put po wer (m w) current (ma) -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 6 7 8 9 10 typical threshold current vs ambient temperature threshold cu rrent (m a) ambient temperature ( o c)
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