光耦 Traditional form: 光耦 Pinyin (reading): guāng'ǒu Definitions: abbr. for 光耦合器 (guāng'ǒuhéqì) Characters: 光 - light; bright, brilliant; only, merely 耦 - to plow side-by-side; pair, couple; a team of two Traditional characters: 光 - light; bright, brilliant; only, merely 耦 - to plow side-by-side; pair, couple; a team of two