Introduction to Laser in Medicine - Medical Laser - Laser Types
Laser power of 1 Watt means that 1 Joule of energy is emitted in 1 second. Frequency – Pulse Repetition Rate (Hz) Medical lasers are usually operated in a repetitive pulse mode. Laser pulses are emitted periodically at a pulse repetition rate, for example, 10 pulses per second. Hertz (Hz) is the most commonly used unit for pulses per second.