Ntt Electronics Corporation

Nippon Telegraph and Telephone Corporation

Yuichi Kikuchi

Motohaya Ishii

Hiroshi Terui

Tomoyo Shibazaki

Ken Tsuzuki

Takashi Saida

Yoshiyuki Doi

Fumihiro Ebisawa

Takao Fukumitsu

Atsushi Murasawa

Shinji Mino

Takashi Goh

Takashi Yamada

Akira Miyashita

Hiroshi Yamazaki

Nobuo Tomita

Kazunori Seno

Naoki Ooba

Hisashi Izumita

Norio Takato

Fumiaki Hanawa

Yoshitaka Enomoto

Satoru Konno

Jyunko Katoh

In an optical component, a part of a waveguide type optical device is fixed to a convex portion of a mount. The optical component includes an optical device support base, a pressure member and a pressure support base. The optical device support base is interposed between the mount and the presser member enough to be slidable in a direction parallel to surfaces of the mount and the presser member.

Optical component

An optical component has first and second planar lightwave circuits. The first and second planar lightwave circuits are aligned and jointed such that the position of an i-th optical waveguide (where i is an integer greater than or equal to 1 and less than or equal to n) of the first planar lightwave circuit and that of an i-th optical waveguide of the second planar lightwave circuit are matched on a joint interface. An angle formed by the i-th optical waveguide of the first planar lightwave circuit and a normal of the interface is configured to vary in accordance with a value of i within a range satisfying the Snell's law.

Optical component having different waveguide angles at the interface between two planar lightwave circuits

In an optical component configured to fix to a mount an optical device chip in which waveguide type optical devices having different thermal expansion coefficients are butt-jointed, deterioration in reliability due to thermal stress is suppressed. The optical component () comprises an optical device chip () including an LN waveguide (), a first PLC waveguide (), a second PLC waveguide (), and a fiber alignment member (), a mount (), and optical fibers (). Each of connection faces between the first PLC waveguide and the fiber alignment member is configured as an tilted structure, and each of connection faces between the LN waveguide, and the first and second PLC waveguides is configured as a right-angled structure. In the right-angled structure, the connection faces are connected by an adhesive having a lower Young's modulus than that of an adhesive used on the connection faces of the tilted structure.

An optical element module is equipped with a casing, an optical element provided inside the casing, a pipe which communicates the inside of the casing to the outside, and a primary coated optical fiber which is inserted through the pipe and connected to the optical element.

Optical element module with a primary coated optical fiber

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Yokohama, Japan

Yuichi Kikuchi