Fujitsu Corporation

Masaki Kuribayashi

Kazuhiko Kobayashi

Hironao Hakogi

Shunichi Satoh

Shunichi Sato

Takashi Yamaguchi

Tatsuro Kunikane

Manabu Komiyama

Yoshimitsu Sakai

Katsuhiko Kawasaki

Tetsuo Ishizuka

Shuuichi Matsuura

An optical module includes a first level detecting part having a semi-transparent structure and receiving a light signal emitted from a light-emitting element, a second level detecting part receiving the light signal which penetrates through the first level detecting part and passes through an optical filter, and a control part controlling an operation temperature of the light-emitting element on the basis of electric signals output from the first and second level detecting parts.

Optical module

An optical module has a module case in which an optical device and a circuit unit electrically connected to the optical device are mounted. An optical connector of an optical fiber is detachably connected to the module case so as to be in contact with the optical device. The optical module includes a supporting structure supporting the optical device in a state in which the optical device is movable along a line, a force applying mechanism applying a force to the optical device in a direction parallel to the line along which the optical device is movable, and a locking mechanism releasably locking the optical connector pressing the optical device in a direction parallel to the line so as to be in close contact with the optical device, light passing through a boundary between the optical connector and the optical device.

Fiber-detachable-type optical module

A module includes an element having a temperature response, a Peltier element thermally coupled to the element having the temperature response, and a capacitance component electrically coupled to the Peltier element.

Module having Peltier element

A receptacle optical module including a fixed housing adapted to be fixed to a mother board (substrate); an optical semiconductor assembly having an optical semiconductor chip for performing conversion between an optical signal and an electrical signal; a plurality of lead pins fixed to the fixed housing for mechanically fixing the fixed housing to the mother board and electrically connecting the optical semiconductor chip to the mother board; a movable housing pivotably provided on the fixed housing for supporting the optical semiconductor assembly; and a receptacle mechanism for detachably holding an optical connector in the movable housing so as to optically connect the optical semiconductor chip to the optical connector. With this configuration, the movable housing for supporting the optical semiconductor assembly is pivotably provided on the fixed housing, so that the optical connector can be easily attached/detached, and possible bending of the lead pins due to attachment/detachment of the optical connector is suppressed.

Receptacle optical module

An optical semiconductor module including a housing (54), an optical semiconductor assembly (56), a movable ferrule (84), and a sleeve (60). The housing (54) has a hole (80) into which a connector ferrule (76) is inserted. The optical semiconductor assembly (56) is accommodated in the housing (54). An optical fiber (74,82) having a first end (82a) and a second end (82b) is fixed in the movable ferrule (84). The movable ferrule (84) has a thin hole (84a) in which the second end (82b) of the optical fiber (82) is inserted and fixed. The first end (82a) of the optical fiber (82) is supported so as to be optically coupled to the optical semiconductor assembly (36). The sleeve (60) is accommodated in the hole (80) of the housing (54), so as to align the movable ferrule (84) and the connector ferrule (76) with each other. The movable ferrule (84) is biased so as to be pressed against the connector ferrule (76) in the sleeve (60). With this configuration, even if an optical connector is repeatedly mounted/demounted with respect to the optical semiconductor module, a high efficiency of optical coupling between the optical connector and the optical semiconductor assembly (56) can be stably maintained, thus providing an optical semiconductor module having a high reliability.

Growing community of inventors

Sapporo, Japan

Masaki Kuribayashi