Patent ID: 9685755
Date: 2017-06-20
CPC Classifications: H01S

Claim:
1. A method of controlling beam quality and stability of a laser apparatus, the laser apparatus comprising: a tapered diode laser providing first radiation of at least a first wavelength, the first radiation having a multi-lobe spatial intensity distribution with a dominant lobe and lower-power side lobes; the diode laser comprising at least a ridge waveguide and a tapered section, a first contact for injecting a first current into the ridge waveguide, a second contact for injecting a second current into the tapered section, and means for controlling a temperature of the diode laser; and a frequency conversion unit configured to frequency-convert the first radiation from the diode laser and to output the frequency-converted radiation, the frequency-converted radiation having at least a second wavelength different from the first wavelength, wherein the method comprises: