| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical transmitter that can surely prevent optical signals in each color from partly overlapping and intermingled and branch a plurality of the combined signals in a complete form by 100%. SOLUTION: An optical multiplexing demultiplexing filter 5, that extracts only a signal with a required wavelength from an optical signal outputted from an LED 2 is placed to an optical output side of the LED 2 of an optical multiplexer 1, that multiplexes optical signals in a plurality of colors with different wavelengths emitted from the LED 2, multiplexes the optical signals transmitted through the optical multiplexing demultiplexing filter 5, the multiplexed optical signal is sent to an optical demultiplexer 7 via an optical cable 6, and the optical demultiplexer 7 demultiplexes the optical signal into a plurality of the original color signals in the original colors and converts them into electrical signals. |
