Abstract

Summary form only given. Coherent CW blue lasers are considered attractive for many applications, particular spectroscopy. One efficient method to generate blue light with a broad tunable wavelength range is second-harmonic generation (SHG) of a near-infrared diode laser using a KNbO/sub 3/ crystal in an external resonator. Passive optical feedback is often employed to lock the frequency of the single-longitudinal-mode diode laser to the resonance of the external cavity for stable and efficient SHG, and to improve the spectral properties of the diode laser. We use a high-power Fabry-Perot (FP) diode laser by feeding back the transmission of the ring cavity into the laser after reflecting off a diffraction grating to obtain single-mode and self-locking to the ring cavity resonance with a narrow linewidth.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.