Abstract

The development of a compact, tunable laser source in the visible spectral region is very attractive for a wide range of cutting-edge applications, including biomedicine, spectroscopy and advanced imaging techniques. However, such applications normally require a number of lasers to cover a broad visible spectral region making the system bulky, expensive, and complex to operate. An attractive method for the realisation of a compact tunable visible laser source is the frequency-doubling of an infrared laser diode in a nonlinear waveguided crystal utilising the multimode-matching approach [1]. This technique also allows a multiple-wavelength second harmonic generation (SHG) in a single crystal which is very attractive for super resolution microscopy.

© 2015 IEEE