www.roithner - laser.com 1 rlt 425 - 50cmg description rlt425 - 50cmg is a violet laser d iode emitting at 425 nm with rated output power of 50 mw cw at room temperature, in standard 5.6mm to package. maximum ratings parameter symbol values unit min. max. optical output power p o 50 mw operating temperature t case - 1 0 + 3 0 c storage temperature t stg - 40 +80 c soldering temperature t sold 260 c laser characteristics (t case = 25c, p o = 1 w ) parameter symbol values unit min. typ. max. emission wavelength peak 423 425 427 nm spectral width ? 0.5 1 nm polarization te t h reshold current i th 40 70 150 ma operating current i f 100 120 200 ma operating voltage v f 4.8 5.2 5.9 v beam divergence (fwhm) ? ii x ? 6x15 10x20 13x25 deg. beam pointing accuracy (fwhm) ?? ii / ?? 8 / 18 - 14 / 25 deg. slope efficiency 0.4 0.7 1.2 w/a expected life t ime* t l 2000 h *life time calculation based on 10mw operation v 1. 1 06.07 .2013
www.roithner - laser.com 2 performance characteristics output power vs. forward current forward voltage vs. forward current near field pattern spectrum beam diameter 1.3x2.0mm @ 20cm distance spectrum recorded from rlt405 - 50cmg
www.roithner - laser.com 3 drawing all dimensions in mm electrical connection lead description pin 1 ld anode pin 2 ld cathode pin 3 not connected view from below, dimensions in mm esd caution always do handle la ser diodes with extreme c aution to prevent electrostatic discharge , the primary cause of unexpected diode failure. esd failures can be prevented by always wearing wrist straps, only using a grounding workplace, and following strict anti - static guidelines when handling the laser diode
www.roithner - laser.com 4 safety advice this laser diode emits highly concentrated ultra violet light which can be hazardous to the human eye . this diode is classified as class 3b laser product according to iec 60825 - 1 and 21 cf r part 1040.10 safety standards . actual laser light emitted and precautions necessary strongly depend on mode of operation. operating considerations operating the laser diode outside of its maximum ratings may cause failure or a safety hazard. the diode may be damaged by excessive drive currents or switching transients. if the diode is operated using a power supply, it is strongly recommended to connect the diode with the output voltage set to zero. the voltage should then be increased slowly and with great caution, while at the same time carefully monitoring the laser diodes output power and drive current. the laser diode will show accelerated degradation with increa sed temperature, and it is advised to keep the case temperat ure low therefor , by means of heat sinking the device. ? all rights reserved the above specifications are for reference purpose only and subjected to change without prior notice
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