S8550MG TECHNICAL DATA Infrared Laser Diode Features • • • • Lasing Mode Structure: multi mode Peak Wavelength : typ. 850 nm Optical Ouput Power: 50 mW Package: 5.6 mm Electrical Connection Pin Configuration Bottom View n-type PIN 1 2 3 Function LD Cathode LD Anode, PD Cathode PD Anode Absolute Maximum Ratings (TC=25°C) Item CW Output Power LD Reverse Voltage Operating Case Temperature Storage Temperature Symbol PO VrLD TC Tstg Value 50 2 -10 … +40 -15 … +85 Unit mW V °C °C Specifications (TC=25°C, PO=50mW) Item Optical Specifications Center Wavelength FWHM Beam Divergence* Electrical Specifications Threshold Current Operating Current Slope Efficiency Operating Voltage Monitor Current Symbol Min. Typ. Max. Unit λC θ║ θ┴ 830 10 22 850 15 30 860 20 38 nm deg deg Ith Iop η Uop Im 0.4 1.5 0.05 28 85 0.75 1.8 0.12 35 110 2.1 1.00 mA mA mW/mA V mA * θ║ and θ┴ are defined as the angle within the intensity is 50% of the peak value. The above specifications are for reference purpose only and subjected to change without prior notice. 04.10.2011 S8550MG 1 of 5 Package Dimensons 5.6 mm Package (Unit:mm) Typical Performance Curves Optical Ouput Power vs. Forward Current 04.10.2011 S8550MG 2 of 5 Forward Voltage vs. Forward Current Peak Wavelength vs. Case Temperature Far-Field Pattern 04.10.2011 S8550MG 3 of 5 Monitor Current vs. Optical Output Power Slope Efficiency vs. Case Temperature Threshold Current vs. Case Temerature 04.10.2011 S8550MG 4 of 5 Safety of Laser light • • Laser Light can damage the human eyes and skin. Do not expose the eye or skin directly to any laser light and/or through optical lens. When handling the LDs, wear appropriate safety glasses to prevent laser light, even any reflections from entering to the eye. Focused laser beam through optical instruments will increase the chance of eye hazard. These LDs are emitting invisible light. Cautions 1. Operating methode • This LD shall change its forward voltage requirement and optical ouput power according to temperature change. Also, the LD will require more operation current to maintain same ouput power as it degrades. In order to maintain output power, use of APC (Automatic Power Control) is recommended. Which use monitor feedback to adjust the operation current. • Confirm that electrical spike current generated by swithing on and off does not exceed the maximum operating current level specified herein above as absolute maximum rating. Also, employ appropriat countermeasures to reduce chattering and/or overshooting in the circuit. 2. Static Electricity • Static electricity or electrical surges will reduce and degrade the reliability of the LDs. It is recommended to use a wrist trap or anti-electrostatic glove when handeling the product. 3. Absolute Maximum Rating • Active layer of LDs shall have high current density and generate high electric field during its operation. In order to prevent excessive damage, the LD must be operated striclty below absolute maximum rating. 04.10.2011 S8550MG 5 of 5