Optical Device

Organization Name

NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor(s)

Yoshiho Maeda of Musashino-shi, Tokyo JP

Koji Takeda of Musashino-shi, Tokyo JP

Takuro Fujii of Musashino-shi, Tokyo JP

Toru Segawa of Musashino-shi, Tokyo JP

Shinji Matsuo of Musashino-shi, Tokyo JP

Optical Device

This abstract first appeared for US patent application 18721598 titled 'Optical Device

Original Abstract Submitted

The optical device includes a semiconductor layer formed on a cladding layer and composed of a III-V compound semiconductor, and a light-receiving element for monitoring a semiconductor laser formed on the semiconductor layer and oscillation light of the semiconductor laser. A first p-contact layer and a first n-contact layer of the semiconductor laser, a second p-contact layer and a second n-contact layer, and a light absorption layer of the light-receiving element are composed of the same III-V compound semiconductor (InGaAsP).