SLD1134VL 650nm Pulsation Red Laser Diode Description The SLD1134VL is a pulsation red laser diode designed for DVD systems. M-274 Features • Low noise • Standard package (φ5.6mm) Application DVD Structure • AlGaInP quantum well-structure laser diode • PIN photo diode for optical power output monitor Recommended Optical Power Output 4mW Absolute Maximum Ratings (Tc = 25°C) • Optical power output Po 5 mW • Reverse voltage VR LD 2 V PD 20 V • Operating temperature Topr –10 to +70 °C • Storage temperature Tstg –40 to +85 °C Pin Configuration Connection Diagram 3 COMMON PD LD 2 2 1 1 3 1. LD Anode 2. PD Anode 3. Common Bottom View Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– E98Y11-PS SLD1134VL Electrical and Optical Characteristics Item Threshold current Operating current Tc: Case temperature Symbol Conditions Iop1 Iop2 ∗1 Operating voltage Vop PO = 4mW Wavelength λp PO = 4mW Positional accuracy Perpendicular θ⊥ Parallel θ// Position ∆X, ∆Y, ∆Z Angle Typ. Max. Unit 65 80 mA 75 90 mA 120 mA 2.3 2.8 V 640 655 660 nm 25 35 40 degree 7 8.5 12 degree ±80 µm ±2 degree ±3 degree 0.7 mW/mA Ith PO = 4mW Radiation Angle Min. ∆φ// PO = 4mW PO = 4mW ∆φ⊥ Differential efficiency ηD PO = 4mW Astigmatism AS PO = 4mW Monitor current Imon PO = 4mW VR = 5V 0.15 0.4 10 0.05 0.1 µm 0.25 mA ∗1 Tc = 70°C Handling Precautions (1) Eye protection against laser beams The optical output of laser diodes ranges from several mW to 4W. However the optical power density of the laser beam at the diode chip reaches 1MW/cm2. Unlike gas lasers, since laser diode beams are divergent, uncollimated laser diode beams are fairly safe at a laser diode. For observing laser beams, ALWAYS use safety goggles that block infrared rays. Usage of IR scopes, IR cameras and fluorescent plates is also recommended for monitoring laser beams safely. Safety goggles for protection from laser beam Lens Laser diode Optical material IR fluorescent plate C ATC AP Optical board Optical power output control device Temperature control device (2) Prevention of surge current and electrostatic discharge Laser diode is most sensitive to electrostatic discharge among semiconductors. When a large current is passed through the laser diode even for an extremely short time (in the order of nanosecond), the strong light emitted from the laser diode promotes deterioration and then laser diodes are destroyed. Therefore, note that the surge current should not flow the laser diode driving circuit from switches and others. Also, if the laser diode is handled carelessly, it may be destructed instantly because electrostatic discharge is easily applied by a human body. Be great careful about excess current and electrostatic discharge. –2– SLD1134VL Example of Representative Characteristics Optical power output vs. Forward current characteristics Optical power output vs. Monitor current characteristics Tc = 0 25 60 70°C Tc = 0 25 60 70°C Far field pattern (FFP) 5 Po = 4mW Tc = 25°C θ⊥ Relative radiant intensity Po – Optical output [mW] 4 Imon 3 2 1 θ// 0 0 20 40 60 80 100 0 –40 –20 0 20 40 IF – Forward current [mA] 0 Angle [degree] 0.2 Imon – Monitor current [mA] Threshold current vs. Temperature characteristics Monitor current vs. Temperature characteristics 200 0.2 100 10 –20 Imon – Monitor current [mA] Ith – Threshold current [mA] Po = 4mW 0.1 0 0 20 40 60 80 –20 Tc – Case temperature [°C] 0 20 40 Tc – Case temperature [°C] –3– 60 80 SLD1134VL Temperature dependence of spectrum Po = 4mW Tc = 70°C Relative radiant intensity Tc = 60°C Tc = 25°C Tc = 0°C 645 650 655 660 λp – Wavelength [nm] –4– 665 670 675 SLD1134VL Power output dependence of spectrum Tc = 25°C Relative radiant intensity Po = 5mW Po = 4mW Po = 1mW 645 650 655 660 λp – Wavelength [nm] –5– 665 670 675 SLD1134VL Package Outline Unit: mm M-274 Reference Slot 0.4 1.0 0.5 90° 3 1 2 0 φ5.6 – 0.025 φ4.4 MAX φ3.7 MAX φ1.0 MIN 1.2 ± 0.1 Reference Plane 2 3 1 3 – φ0.45 ∗Optical Distance = 1.35 ± 0.08 6.5 LD Chip & Photo Diode SONY CODE 2.6 MAX 0.5 MIN ∗1.26 0.25 Window Glass PCD φ2.0 M-274 PACKAGE WEIGHT EIAJ CODE JEDEC CODE –6– 0.3g