To provide an optical module and optical transmission method that reduce tracking errors
caused by position shifting of the focal point of light related to the optical axis direction, using …

The invention can be realized in the following forms or application examples. 0010.
According to an application example, there is pro vided a shift register circuit including p (p …

(57) ABSTRACT A semiconductor device includes a Substrate, a transparent oxide layer
disposed on one surface side of the Substrate, a gate disposed apart from the transparent …

An optical communication system includes a first optical communication apparatus
configured to insert a wavelength control signal in a main signal to produce a modified main …

A method of manufacturing a semiconductor optical element, includes successively stacking
a first semiconductor layer of a first conductivity type, an active layer, and a second …

In an optical semiconductor device including a first semicon ductor layer of a first
conductivity type, an active layer pro vided on the first semiconductor layer, a second …

To provide a light-receiving element capable of high-speed operation including an optical
member whose setting posi tion, shape and size are advantageously controlled and its …

The spot size converter includes a first cladding layer, a first core layer and a second core
layer arranged side by side on the first cladding layer so as to extend from a first end which …

An optical transceiver includes an optical transmission sec tion that transmits an optical
signal, an optical reception section that receives an optical signal, and a control section that …

An optical module including a first optical coupler, a second optical coupler, a first optical
waveguide; a second optical waveguide; a first electrode provided on the first optical …