A multisegment laser diode structure is presented in the form of two spaced-apart
linear waveguide segments and two spaced-apart ring-like waveguide segments, arranged
such that each of the ring-like segments is optically coupled to each of the linear
waveguide segments. At least one of the waveguide segments includes an active lasing
material. The waveguide segments are thus arranged such that four separate electrical
contacts can be provided to four waveguide segments, respectively, thereby enabling
separate driving of each of the waveguide segments.
