21.09.2011 LD-405-200 1 of 1 LD-405-200 technical data violet laser diode features ? peak wavelength: 405 nm ? optical ouput power: 200 mw ? multi transverse mode ? package: 5.6 mm, without photodiode electrical connection pin configuration bottom view pin function 1 ld anode 2 case 3 ld cathode absolute maximum ratings (t c =25c) item symbol value unit cw output power p o 250 mw ld reverse voltage v r (ld) 5 v pd reverse voltage v r (pd) 20 v operating case temperature * t c -10 ? +40 c storage temperature t stg -40 ? +85 c * operating temperature is recommended within 20-30 c range. specifications (t c =25c) item symbol min. typ. max. unit optical specifications cw output power p o - - 200 mw peak wavelength * p 400 405 410 nm U 8.0 16.0 26.0 deg fwhm beam divergence 32.0 42.0 50.0 deg emission point accuracy angle ? -5.0 - 5.0 deg electrical specifications threshold current i th - 100 130 ma operating current i op - 230 270 ma slope efficiency 1.0 1.5 2.0 w/a operating voltage u op - 4.2 4.8 v the above specifications are for reference purpose only and subjected to change without prior notice.
21.09.2011 LD-405-200 2 of 2 package dimensons 5.6 mm package ( unit:mm )
21.09.2011 LD-405-200 3 of 3 typical characteristics optical ouput power vs. forward current forward voltage vs. forward current threshold current vs. case temperature peak wavelength vs. case temperature far field pattern typical spectrum
21.09.2011 LD-405-200 4 of 4 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 classified in class 4 of iec60825-1 and 21 cfr part 1040.10 safety standards. it is absolutely necessery to take ov erall safety measures against user?s modules, equipment and systems into which this lds are incorporated and/or integrated. 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 her ein above as absolute maximum rating. also, employ appropriat countermeasures to reduce c hattering 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 dam age, the ld must be operated striclty below absolute maximum rating.
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