Abstract

The feasibility of waveguide grating mirror usage for narrow wavelength generation and laser tuning was repeatedly demonstrated [1]. Waveguide grating mirror could provide wavelength stabilisation and transverse coherence improvement in semiconductor lasers with wide active region. However, to our knowledge, there is only one publication concerning the utilisation of waveguide grating mirror for the wide active region semiconductor lasers [2]. It is known that waveguide grating mirror efficiently works under normal incidence and this is a great advantage in designing of compact semiconductor laser chip.

© 1998 IEEE