Peculiarity
01. The vertical cavity surface emits the laser, and the laser is emitted perpendicular to the top surface;
02. It has a small far-field divergence angle, and the divergence angle beam is narrow and round;
03. Low threshold current and high modulation frequency;
04. Wavelength tuning can be achieved by changing the laser current and temperature;
05. Wavelength and threshold are relatively less sensitive to temperature changes;
06. The length of the cavity is similar to the wavelength, or even smaller (half-wavelength magnitude), so the longitudinal mode interval is large, and single longitudinal mode exit can be realized;
07. The outgoing circular spot is easy to couple with optical fiber;
08. Simple packaging, and can form two-dimensional laser array;
09. Long working life, more than 100,000 hours.
Apply
01. Flood illuminator
02. 3D face recognition
03. TOF ranging sensor
04. Automatic driving
05. Data communication network
06. Optical storage
07. Laser printing
08. Fluorescence therapy
09. LiDAR
10. Laser processing