MITSUBISHI

MITSUBISHI LASER DIODESML7XX2 SERIESFOR OPTICAL COMMUNICATIONTYPENAMEML774A2F, ML7922DESCRIPTIONML7XX2 is a DFB (Distributed Feedback) laser diodewhich oscillates in a single wavelength withemission wavelength of 1310nm and standardcontinuos light output of 5mW.ML7XX2 are hermetically sealed devices havingthe photodiode for optical output monitoring. Thisis a high-performance. high reliability. and long-lifelaser' diode.FEATURES• Low threshold current typical 15mA.High stable fundamental transverse mode oscillation• High side mode suppression ratio typical 40dB(Tc = 0-+ 60"C)• High speed of response (Rise and fall timetypically 0.2nsec)APPLICATIONLong-distance. large-capacity optical communicationsystemsABSOLUTE MAXIMUM RATINGSSymbol Parameter ConditionsPo Light output power CWVRL Reverse voltage (Laserdiode) -VRD Reverse voltage (Photodiode) -IFD Forward current (Photodiode) -Tc Case temperature -Tot9 Storage temperature -Ratings Unit6 mW2 V20 V2 mA0-+60 'c-40-+ 100 'CELECTRICAL/OPTICAL CHARACTERISTICS (Tc = 25 'C)Symbol Parameter Test conditionsIth Threshold current CWlop Operating current CW.Po=5mWVop Operating voltage (Laser diode) CW.Po-5mWT) Slope efficiency CW.Po=5mW.l. P Peak wavelength CW.Po=5mW8 II Beam divergence angle (parallel) CW.Po-5mW8J. Beam divergence angle(perpendicular) CW.Po=5mW1mMonitoring output currentCWo Po = 5mW. VRD = 1 V. RL = 10 Q(Photodiode) (Note 1)tr / tl Rise and fall times IF -Ith. Po - 5mW. 10 %-90 %SMSR Side mode suppression ratio CWo Po = 5mW. 0-+ 60 'cPm(Note 1) Monitoring Light Output CW.Po=5mWNote 1: RL is load resistance of the photodiode.2 : Pm only apply to ML 7922.LimitsMin. Typ. Max.Unit- 15 40 mA- 30 80 mA- 1.2 1.8 V- 0.4 - mW/mA- 1310 - nm- 25 - deg.- 30 - deg.0.1 0.25 - mA- 0.2 0.4 ns30 40 - /l.A- 0.5 - mW• MITSUBISHI"ELECTRIC2 -143