Mitsubishi Denki Kabushiki Kaisha

Shigeki Horiuchi

Saburo Takamiya

Yoshihiro Kokubo

Kaname Otaki

A surface-emitting injection type laser device has a semiconductor wafer including a first and a second main face opposite to each other and an active layer located on the side of the first main face. A single mode optical fiber chip has a first and second end surface perpendicular to its optical axis and is disposed on the semiconductor wafer with the first end surface contacting the second main face through a reflection preventing film. A dielectric film is disposed on the second end surface of the optical fiber chip to increase the reflection power at the second end surface and forming a resonator with the first main face of the semiconductor wafer.

Growing community of inventors

Amagasaki, Japan

Shigeki Horiuchi