TTR-1A23 connector ized high-speed vcsel features: ? industry standard connector of metallic st * -type receptacle. ? pre-aligned for multi-mode fiber communication. ? high stability to temperature variation. ? solution of 10/100/622/1250 mbps applications. ? led transmitter alternative. electro-optical characteristics: parameters symbol min typ max unit test conditions (1) threshold current i th 3 6 ma fiber coupled power (50/125, 62.5/125 m m mmf) (2) p o -4 -9.5 -17 2 -4 -12 dbm i f =12 ma (3) slope efficiency h 0.1 mw/ma i f =12 ma (4) wavelength l p 830 850 860 nm i f =12 ma spectral width (rms) dl 0.85 nm i f =12 ma transverse mode number 2 3 4 i f =12 ma forward voltage v f 1.7 1.9 2.3 v i f =12 ma breakdown voltage v bd 10 15 v i r =10 m a rise/fall time (20%~80%) t r /t f 130/200 ps t a =25 c, extinction ratio > 10db notes: 1. all parameters except mentioned are measured at i f =12 ma, 25 c, cw. 2. ttr-1a22 is product type specified for 50/125 m m mmf, and TTR-1A23 is product type specified for 62.5/125 m m mmf. 3. specific power range can be provided under request. 4. slope efficiency is defined as d p/(12-i th ) at 25 c. 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 1 ma t a =0~70 c v f temperature coefficient d v f / d t -3.5 -2.5 mv/ c t a =0~70 c, i f =12 ma h temperature coefficient dh / d t -0.15 %/ c t a =0~70 c, i f =12 ma l p temperature coefficient dl p / d t 0.06 nm/ c t a =0~70 c, i f =12 ma absolute maximum ratings: parameters min max unit conditions storage temperature -40 100 c operating temperature -20 85 c lead solder temperature 260 c 10 seconds continuous forward current 40 ma continuous reverse voltage 10 v * st is a registered trademark of at&t.
TTR-1A23 fig. 1 typical optical characteristics fig. 2 typical electrical characteristics fig. 3 spectrum when driving current 12 ma fig. 4 temperature dependence of threshold current 3 transverse modes typically. outline dimensions: ? unit: mm warning: the vcsel is a class iiib laser in the safety standard ansi z136.1 and should be treated as a potential eye hazard. -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 6 7 8 typical threshold current vs ambient temperature threshold cur rent (m a) ambient temperature ( o c) 0 5 10 15 20 0 1 2 3 4 typical voltage vs current volt age (v) current (ma) 0 5 10 15 20 0.0 0.5 1.0 1.5 i th typical output power vs current out put power (m w) current (ma)
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