Fujitsu Corporation

Kouji Nekoda

Takuji Maeda

Yuji Shimada

Taro Asao

Masanori Kondoh

Ayumu Nonaka

Atsunori Machida

This provides an optically transmitting apparatus, an optically transmitting system and an optically transmitting method. This receives an optical signal which is configured in accordance with any one frame format among a plurality of frame formats and includes at least a clock signal and a data signal, and performs an optical-electric/electric-optical conversion on the received optical signal, and extracts the clock signal and the data signal, which correspond to the frame format, from the optical-electric converted signal. This correlates and stores an idle code indicative of a block where the actual data is not communicated and the frame format, reads the idle code from the extracted data signal, identifies the frame format corresponding to the read idle code, and executes a transmitting process in accordance with the identified frame format.

Optically transmitting apparatus, optically transmitting system and optically transmitting method

An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls within a predetermined dynamic range of the optical element; and a controller that adjusts the predetermined attenuation amount so that a level of the optical signal input into the optical element falls within the predetermined dynamic range.

Optical transmission device for controlling optical level of transmission signal in optical transmission system

Growing community of inventors

Fukuoka, Japan

Kouji Nekoda