An optical semiconductor device, including a first optical waveguide with a first width, a
second optical waveguide with a second width narrower than the first width with a bending …

US20040245530A1 - Optical semiconductor device and method of manufacturing same -
Google Patents US20040245530A1 - Optical semiconductor device and method of …

(57) ABSTRACT A core of an optical waveguide and a core of a waveguide type optical
device are adjacently disposed, and a layer is continu ously formed at one end of the core of …

An optical waveguide device includes: a substrate; an optical element arranged on the
Substrate; and an optical circuit part having an optical waveguide formed on the Substrate …

An object of the invention is to provide an optical device and an optical device
manufacturing method wherein provisions are made to be able to Substantially prevent …

(57) ABSTRACT A manufacturing method for an optical semiconductor device, including
disposing a semiconductor element that has a polarization dependent gain or polarization …

US7288783B2 - Optical semiconductor device and method for fabricating the same - Google
Patents US7288783B2 - Optical semiconductor device and method for fabricating the same …

(57) ABSTRACT A disclosed optical semiconductor device includes a first semiconductor
layer having a first refractive index and a first optical absorption coefficient; and a second …

(57) ABSTRACT A semiconductor optical device includes a first clad layer, a second clad
layer and an optical waveguide layer sandwiched between the first clad layer and the …

An optical device includes: a substrate side waveguide formed on a substrate; and a
plurality of optical elements fixed on the substrate. The substrate side waveguide and an …