Segmented optical waveguide suitable in particular for being included in a semiconductor device
AssigneeAlcatel
InventorsJean-Fran.cedilla.ois Vinchant, Leon Goldstein, Denis LeClerc, Jean-Louis Gentner
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Abstract
An optical waveguide includes, in monolithic manner, a rear segment, a transition segment, and a front segment extending and succeeding one another along the length of the waveguide. A lateral confinement factor and a width the waveguide are respectively larger and smaller in the rear segment than in the front segment. According to the invention, the width increases in the transition segment until it reaches a value that is larger than that of the front segment. The invention is particularly applicable to integrating together a laser and an optical modulator for a telecommunications system.
Claims8
An optical waveguide, the waveguide including, in monolithic manner, a rear portion and a front segment extending and succeeding each other along the length of the waveguide and being connected together in a connection zone, the waveguide having a width and a lateral confinement factor at each point along its length, said factor being constituted by the ratio of optical power confined in the width divided by total optical power, the optical powers being those of the same light guided by the waveguide, said factor being greater in the rear portion than in the front segment in the vicinity of the connection zone, wherein the width is also greater in the rear portion than in the front segment in the vicinity of the connection zone.
Dependencies are inferred from the claim text.