www.roithner - laser.com - 1 - 1 2/05/14 ld - 520 - 1 2 0 m g ? direct emitting green laser diode description ld - 520- 1 20m g is a direct emitting , gan based , 520nm green laser d iode in to 5 6 package without photodiode . it offers single transverse mode emission and >100 mhz modulation bandwidth. it is an efficient radiation source for many applications like laser projection , holography, metrology, biomedical application? maximum ratings parameter symbol values unit min. max. operating current i f 4 80 ma reverse voltage v r 2 v operating temperature t case + 10 + 6 0 c storage temperature t stg - 40 + 85 c soldering temperature t solder 260 c laser characteristics (t case = 25c , p o = 50 mw ) parameter symbol values unit min. typ. max. emission wavelength peak 515 520 530 nm optical output power p o 120 mw spectral width ? 2 nm treshold current i th 1 40 2 00 ma operating current i f 3 40 ma operating voltage v f 6 v beam divergence (fwhm) ? ii x ? 4x1 8 7 x2 3 11x2 6 deg polarization p gr 20:1 modulation frequency f >100 mhz thermal resistance (junction to case) r th 20 k/w
www.roithner - laser.com - 2 - 1 2/05/14 performance characteristic s optical output power operating voltage threshold current spectrum
www.roithner - laser.com - 3 - 1 2/05/14 drawing dimensions in mm electrical connection lead description pin 1 ld anode pin 2 case pin 3 ld cathode mounting instruction in order to maintain lifetime and stability of the laser diode it is essential to provide efficient heat manag ement. heat dissipation is possible through the base plate only. for long time stable operation proper contact between laser diode base plate and heat sink is mandatory safety advice this laser diode emits highly concentrated visible light which can be hazardous to the human eye . this diode is classified as class 3b laser product according to iec 60825 - 1 . actual laser light emitted and precautions necessary strongly depend on mode of o peration. ? all rights reserved the above specifications are for reference purpose only and subjected to change without prior notice
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