RLT7890MG TECHNICAL DATA High Power Infrared Laser Diode Features • • • • Lasing Mode Structure: single transverse mode Peak Wavelength : typ. 785 nm Optical Ouput Power: 90 mW Package: 5.6 mm Electrical Connection Pin Configuration Bottom View n-type PIN 1 2 3 Function LD Anode LD Cathode Absolute Maximum Ratings (TC=25°C) Item CW Output Power Pulsed Output Power* Reverse Voltage Operating Case Temperature Storage Temperature Symbol PO PO pulse UR TC Tstg Value 90 200 2 -10 … +75 -40 … +100 Unit mW mW TC °C °C * duty < 50%, pulse width <0.1µs Specifications (TC=25°C) Item Optical Specification CW Output Power Peak Wavelength Test Conditions Symbol Min. Typ. Max. Unit CW, PO = 90mW CW, PO = 90mW FWHM Beam Divergence CW, PO = 90mW PO λP θ║ θ┴ 780 8 15 784 8.8 17 90 790 10 19 mW nm deg deg Threshold Current Operating Current Slope Efficiency Operating Voltage CW CW, PO = 90mW CW, PO = 90mW CW, PO = 90mW Ith Iop η Uop - 35 115 1.05 1.85 55 160 1.3 2.2 mA mA mW/mA V The above specifications are for reference purpose only and subjected to change without prior notice. 21.12.2011 RLT7890MG 1 of 3 Package Dimensons 9 mm Package (Unit:mm) 21.12.2011 RLT7890MG 2 of 3 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 switching 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. 21.12.2011 RLT7890MG 3 of 3