ML9XX19 series type name ml925b19f mitsubishi laser diodes 2.5gb p s ingaasp dfb laser diode description ML9XX19 series are uncooled dfb (distributed feedback) laser diodes for 2.5gbps transmission emitting light beam at 1550nm. /4 shifted grating structure is employed to obtain excellent smsr p erformance under 2.5gbps modulation. furthermore, ML9XX19 can operate in the wide temperature range form 0oc to 70oc without any temperature control. features 2.5gbps long-haul transmission application absolute maximum ratings /4 phase shifted grating structure high side-mode-suppression-ratio (typical 45db) wide temperature range operation ( 0oc to 70oc ) high resonance frequency (typical 11ghz) electrical/optical characteristics tc=25oc threshold current operation current operating voltage peak wavelength beam divergence angle (parallel) (perpendicular) side mode suppression ratio monitoring current (pd) rise and fall time(10%-90%) s y mbol parameter conditions min. typ. max. unit ith cw -1530ma io p cw,po=5mw - 40 60 ma v vo p cw,po=5mw 1.1 1.8 p cw,po=5mw,tc=0oc +70oc 1550 nm cw,po=5mw - 25 47 deg. cw,po=5mw,vrd=1v - 11 - 20 - smsr fr 2.48832gbps, ibias=ith,ipp=40ma 40 - 30 deg. 35 45 pf resonance frequency tr,t f 2.0 ma db 150 ghz 1530 1570 - limits ma cw,tc=70oc cw,po=5mw,tc=70oc cw,po=5mw 2.48832gbps, ibias=ith,ipp=40ma not including package im id ct capacitance (pd) vrd=5v vrd=5v,f=1mhz - 35 50 - 70 100 ma mw/ma 0.200.15 - cw,po=5mw 100 - psec 0.1 - 1.0 a cw,po=5mw,tc=0oc +70oc - - 10 - slope efficiency dark current (pd) symbol parameter conditions ratings unit if laser forward current 200 ma vrl laser reverse voltage - 2 v tc operation temperature - 0~+70 tstg storage temperature - -40 ~+100 oc oc vrd - 20 v po output powe r cw 6 mw pd reverse voltage ird pd forward current - 2 ma - mitsubishi electric
ml725b16f ld pd (3) (2) (1) (4) case (1) 1.0min. 2.0min. 3.550.1 5.6 +0 -0.03 1.27 0.03 0.250.03 glass 18 1 2.10.15 1.2 0.1 4- 0.450.05 (2) 10.1 2-90 2.00.25 (p.c.d.) 4.25 (3) (4) (0.25) (0.25) reference plane emitting facet (1) (2) mm outline drawings ml925b19f ML9XX19 series mitsubishi laser diodes 2.5gb p s ingaasp dfb laser diode ml925b19f
0.0 0.2 0.4 0.6 0.8 1.0 1.2 -60 -40 -20 0 20 40 60 angle () relative light output q^ q// po=5mw tc=25c -90 -80 -70 -60 -50 -40 -30 1530 1540 1550 1560 1570 forward current if (ma) relative intensity (db) 0c 25c 70c po=5mw,cw 0 2 4 6 8 10 0 20 40 60 80 100 forward current if (ma) light output po (mw) 0c 25c 70c ML9XX19 series mitsubishi laser diodes 2.5 gbps ingaasp dfb laser diode typical characteristics fig. 1 light output v.s. forward current fig. 2 spectrum fig. 3 far field pattern
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