15.07.2013 rlt790 - 80mgs 1 of 3 rlt790 - 80mgs technical data high power infrared laser diode features ? lasing mode structure: single mode ? peak wavelength : typ. 790 nm ? optical ou t put power: 80 mw ? package: 5.6 mm electrical connection pin configuration bottom view n - type pin function 1 ld anode 2 ld cathode, pd anode 3 pd cathode absolute maximum ratings (t c =25c) item symbol value unit cw output power p o 80 mw operating case temperature t c - 10 ? +60 c storage temperature t stg - 40 ? +85 c specifications (t c =25c) item symbol min. typ. max. unit optical specification cw output power p o - 80 - mw peak wavelength p 780 785 790 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 chip cavity length 0.75 mm lifetime 100000 - - hour electrical specification threshold current i th - 30 50 ma operating current i op - 105 130 ma slope efficiency 1.0 1.1 - w/a operating voltage u op - 2.0 2.8 v monitor current i m - 1.2 1.6 ma the above specifications are for reference purpose only and subjected to change without prior notice.
15.07.2013 rlt790 - 80mgs 2 of 3 typical performance parameters spectrum package dimensions 5.6 mm package ( unit:mm )
15.07.2013 rlt790 - 80mgs 3 of 3 safety of laser light ? laser light can dam age 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: laserdiode is emitting invisible light cautions 1. operating method ? this ld shall change its forward voltage requirement and optical output power according to tem perature change. also, the ld will require more operation current to maintain same output power as it degrades. ? confirm that electrical spike current generated by switching on and off does not exceed the maximum operating current level specified herein abov e 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 mu st be operated strictly below absolute maximum rating.
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