www.roithner - laser.com 1 rlt 940 - 200gs ? infrared laser diode ? 940 nm, 200 mw ? single mode maximum rating * (t case = 25c) parameter symbol values unit min. max. optical output power * 1 p max 220 mw operating temperature * 2 t opr - 20 + 50 c storage temperature t stg - 40 + 8 0 c soldering temperature (max. 5 s) t sol + 25 0 c * 1 kink - free power, operating above may irreversibly damage the device * 2 operating outside these conditions may damage the device electro - optical characteristics (t case = 25 c ) parameter symbol values unit min. typ. max. peak wavelength p o 200 mw spectral width (fwhm) ? 0.5 2.0 nm operating voltage v f 1.9 2.2 v threshold current i th 20 40 ma operating current i f 270 320 ma slope efficiency cw 0. 80 0.90 w/a lifetime 100000 h beam divergence (fwhm) parallel ?ii 8 10 deg. perpendicular ? 20 40 deg. electrical connection pin configuration bottom view d escription rlt 940- 200 g s is a infrared laser diode, based on ingan quantum structures , typically emitting at 940 nm . it features single mode emission, and is te polarized . rlt 940 - 200 g s comes in 9 mm to - can package with integrated pd . pin # function pin 1 ld anode pin 2 ld cathode, pd cathode pin 3 pd anode rev . 2 . 0 01.06 .17
www.roithner - laser.com 2 outline dimensions all dimensions in mm precautions safety warning: invisible laser radiation is em itted from this device !!! caution: laser light emitted from any laser diode m ay be harmful to the human eye . avoid looking directly into the laser diode?s aperture when the diode is in operation. note: the use of optical lenses with this laser diode will increase eye hazard esd caution always do handle laser diodes with extreme care to prevent electrostatic discharge , the primary cause of unexpected diode failure . to prevent esd related failures, it is strongly advised to always wearing wrist straps , and grounding all applicable work surfaces , when handling laser diodes operating considerations it is strongly advised to only operate this laser diode with a current source. the current of a laser diode is an exponential function of the voltage across it. u sage of current regulated drive circuits is mandatory. laser diodes may be damaged by excessiv e drive currents or switching transients it is advised, to operat e the laser diode at the lowest temperature possible , and to never exceed maximum specifications as outlined in the datasheet . device degradation will accelerate with increased temperature. p roper heat sinking will greatly enhance stability and life time of the laser diode ? all rights reserved the above specifications are for reference purpose only and subjected to change without prior notice .
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