MITSUBISHI LASER DIODES ML7XX11 SERIES InGaAsP DFB-LASER DIODES TYPE NAME ML725B11F / ML720J11S DESCRIPTION APPLICATION ML7XX11 series are DFB (Distributed Feedback) laser diodes emitting light beam around 1310nm. They are well suited for light source in long -distance digital transmission systems. ML725B11F / ML720J11S are hermetically sealed devices with the photo diode for optical output monitoring. Long - distance digital transmission system ***Specification Note Type FEATURES Low threshold current (typical 10mA) Wide temperature range operation High - side mode suppression ratio (typical 40dB) High speed response (typical 0.2nsec) MQW* active layer FSBH** structure fabricated by MOCVD process Operation Temperature Range ML7XX11-01 Tc=-40 to 85C ML7XX11-02 Tc=-20 to 85C ML7XX11-03 Tc= 0 to 85C * Multiple Quantum Well ** Facet Selective - growth Buried Hetero structure ABSOLUTE MAXIMUM RATINGS Parameter Symbol Po Light output power Conditions Ratings Unit CW 6 mW VRL Reverse voltage (Laser diode) - 2 V VRD Reverse voltage (Photo diode) - 20 V IFD Forward current (Photo diode) - 2 mA Tc Case temperature - Storage temperature - Tstg -01 -02 -03 -40 to +85 -20 to +85 0 to +85 C - 40 to +100 C ELECTRICAL/OPTICAL CHARACTERISTICS (Tc=25C Symbol Ith Parameter Test conditions Min. Typ. Max Unit Threshold current CW - 10 30 mA Iop Operation current CW,Po=5mW - 20 40 mA Vop Operating voltage CW,Po=5mW 1.2 0.5 mW/mA Peak wavelength Beam divergence angle (parallel) CW,Po=5mW CW,Po=5mW ***)Note CW,Po=5mW 1.8 - V Slope efficiency 0.3 1290 - 1310 25 1330 35 nm deg. Beam divergence angle (perpendicular) CW,Po=5mW - 30 40 deg. Side mode suppression ratio CW,Po=5mW ***)Note 30 40 - dB Monitoring output current CW,Po=5mW - 0.2 - mA Rise and Fall time If=Ith,Po=5mW,10 - 90% - 0.2 0.4 ns p SMSR Im tr,tf MITSUBISHI ELECTRIC MITSUBISHI LASER DIODES ML7XX11 SERIES InGaAsP DFB-LASER DIODES OUTLINE DRAWINGS mm 5.6 +0 -0.03 ML725B11F 4.25 3.550.1 (0.25) (4) (3) 2-90 Case (2) (0.25) (1) (4) PD 0.250.03 Glass 10.1 LD 2.0Min. 1.270.03 1.0Min. 0.1 2.10.15 1.2 18 1 (3) 2.00.25 (P.C.D.) (2) Emitting Facet Reference Plane (1) ML725B11F 4- 0.450.05 (2) (1) 5.6 mm +0 -0.03 4.25 ML720J11F (0.25) (2) 2-90 (3) (1) Case (0.25) (4) 1 0.1 PD LD 3.55 0.1 2.0Min. 0.03 Emitting Facet 1.27 Reference Plane 1.2 0.1 0.15 1.0Min. 2.1 0.25 0.03 Glass (3) (2) (1) (4) 18 1 ML720J11S 2.0 0.25 (P.C.D.) 4- 0.45 (1) (2) 0.0