12.07.2013 rlt780 - 150gs 1 of 4 rlt78 0 - 15 0 g s technical data high power infrared laser diode features ? lasing mode structure: single mode ? peak wavelength : typ. 78 0 nm ? optical ou t put power: 1 50 m w ? package: 9 mm electrical connection pin configuration bottom view n - type pin function 1 ld anode 2 ld cathode , pd cathode 3 pd anode absolute maximum ratings (t c =25c) item symbol value unit cw output power p o 185 m w ld reverse voltage v r(ld) 1.5 v pd reverse voltage v r(pd) 10 v operating cas e temperature t c - 20 ? + 50 c storage temperature t stg - 40 ? + 80 c specifications (t c =25c) item symbol min. typ. max. unit optical specification cw output power p o - 150 - m w peak wavelength p 775 780 785 nm spectral width (fwhm) ? - 0.5 2 nm fwhm beam divergence U - 8 10 deg - 25 30 deg emitting aperature w x h 5 x 1 m lifetime 100000 - - hour electrical specification threshold current i th - 35 55 ma operating current i op - 170 200 m a slope efficiency 1.0 1.1 - w/a o perating voltage u op - 1.9 2.2 v monitor current i m - - 0.4 ma the above specifications are for reference purpose only and subjected to change without prior notice.
12.07.2013 rlt780 - 150gs 2 of 4 package dimensons 9 mm package ( unit:mm )
12.07.2013 rlt780 - 150gs 3 of 4 typical performance curves spectrum operation c urrent vs. output power operation current vs. operation voltage
12.07.2013 rlt780 - 150gs 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. ? warning: laser diode is emitting invisible light cautions 1. operating method ? this ld shall change its forward voltage requirement and optical output power according to temperature change. also, the ld will require more operation current to maintain same output power as it degrades. ? con firm 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 appropriate 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 handling 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 strictly below absolute maximum rating.
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