... Typ.Max.UnitTest ConditionCenter wavelengthλc 153015501570 nm - Threshold current Ith - 815 mA - Spectral width Δλ - 1 4 nm FP,Ith+ ... 3 - - mW CW,Ith+20mA Operating voltage Vop - 1.1 1.5 V CW,Ith+20mA Rise/ Fall time Tr/Tf ... Typ. Max. Unit Test condition Dark current Id - 0.1 1 nA VR=5V Quantum efficiency R 0.7 - - A/ ... /1490R43, 1490T/1310R LD type1,FP2,DFB PowerL,0.2~0.5mWM, 0.5~1mWH, >2mW Connect1,FC/ ...