Nippon Telegraph and Telephone Corporation

Ntt Corporation

Yurina Tanaka

Masahiro Ueno

Takashi Sakamoto

Soichi Oka

Yuichi Akage

Sohan Kawamura

A first component having a plate shape includes a first incident surface and a first emission surface disposed on the opposite side of the first incident surface. The first component is made of light transmissive material having an electrostrictive effect. The first component further includes a first transparent electrode formed on the first incident surface, and a second transparent electrode formed between the first emission surface and a first reflective film.

Wavelength variable optical filter

An optical deflector has a dielectric of a paraelectric phase and deflects light transmitted through the dielectric by applying a voltage in a direction perpendicular to a transmission direction of the dielectric, the optical deflector including, in order, a first temperature control element, a first conductor on which a first sensor is disposed, the dielectric, a second conductor on which a second sensor is disposed, and a second temperature control element, wherein a voltage is applied between the first conductor and the second conductor, the dielectric is irradiated with excitation light having a substantially uniform intensity in an application direction of the voltage, and a temperature of the first conductor and a temperature of the second conductor are set to predetermined temperatures.

Optical deflector and method for determining control condition of optical deflector

Growing community of inventors

Tokyo, Japan

Yurina Tanaka