| Student Manual |  The output of a laser diode can be modulated by varying its temperature and current. In this experiment, we will develop an understanding of how a laser diode's optical power and the wavelength can be varied by controlling its temperature and operating current. Furthermore, we will use the proportional-integral (PI) feedback control system to stabilize and tune the temperature of the diode laser. Essential pre-lab reading: |
| Software Code | LabVIEW codeMATLAB script |
| Sample Results | Wavelength as a Function of TemperaturePhotodiode Current vs TemperaturePower vs TemperatureExternal photodiode current as a function of injection currentInternal photodiode current as a function of injection current |
| Hardware Manual | L785P100 Specification SheetLaser Diode Mount ManualLaser Diode Driver Manual |
| Experiment Code | 3.6 |
| Version | Version 2019-1; July 23, 2019 |
Further Readings and References
- Feedback control of Dynamic SystemsPearson, Frankline, Powell and E-Naeini, Section 4.3, .
