Mit kollimations und fokussieroptik.
Diode laser technique.
Laser diodes can directly convert electrical energy into light.
This was already developed in 1962 and it creates the laser light via small crystal plates that are supplied with stimulating energy from a power source.
The laser diode self mixing or feedback interferometric technique is reviewed as a general tool for remote sensing applications.
A laser diode ld injection laser diode ild or diode laser is a semiconductor device similar to a light emitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diode s junction.
Hence it is pumped by electrical energy.
Einzelemitter laserdioden verwendet man zum beispiel in laserpointern für die optische datenübertragung oder in cd und dvd abtastern bzw.
Here the laser active material is a semiconductor namely the laser diode.