Hybrid narrow linewidth semiconductor laser with uniform FM response.

摘要

A hybrid laser arrangement is disclosed which is capable of providing an essentially uniform FM response and a relatively narrow linewidth signal, suitable for FM applications. The uniform FM response is obtained by inducing inhomogeneous linewidth inhancement through control of the bias currents (If,Ib) applied to separate gain sections (14,16) of a two-electrode Fabry-Perot device. Coupling of the two-electrode device to a narrowband resonant optical reflector (20) provides for an extremely narrow signal linewidth. <IMAGE>