The semiconductor laser which possesses the guided wave road which has the void which is filled up with the absorbing material

摘要

As for this application in the semiconductor laser, it regards the kind of laser which operates concretely substantially with single longitudinal mode radiation. It has the laser resonator for the laser, for the laser furthermore it has the slot which has the boundary, it features that the slot is filled up substantially with the reflected material which has big imaginary number section refractive index vis-a-vis the material of the laser resonator. The boundary of the slot may be inclined, in order or, to introduce the phase shift of 1/4 wave, to have the difference in level is possible.