Osram 110mW 520nm Green Laser Diode (TO18 5.6mm) PLT5 520B

 Applications:
 ✔ Health Monitoring (Heart Rate Monitoring, Pulse Oximetry)
 ✔ Measurement Levelling
 Features:  
✔ Typical emission wavelength: 520 nm
 ✔ Efficient radiation source for cw and pulsed operation
 ✔ Single mode semiconductor laser
 ✔ High modulation bandwidth
 ✔ TO56 package with photo diode