音声・データ及び映像信号の光伝送 : 無線・光伝送

概要

論文の詳細を見る
Described is a new optical wavelength division multiplexed system for trans mitting squarewave frequency-modulated audio, video, and data signals operating at wavelengths of 850 nm and 1300 nm. The distortion of the demodulated audio signal was 0.6% at 1 kHz with an SNR of 70 dB, and the freoquency response was flat with a variation of less than 3 dB over the frequency range from 30 Hz to 20 kHz. The DP and DG of the video output signal were 2 degrees and 3% with an SNR of 60 dB, respectively. For the telephone voice signal, the frequency response was flat over the frequencies of 0.3 kHz to 3.6 kHz, where the SNR was 59 dB. This system can also transmit data at a speed of 64 kbits/s, and it can transmit the high-quality TV program and audio signal simultaneously to a remote location at a distance of 2 km when the transmitter output optical power is -19 dBm and the receiver sensitivity is -23 dBm.
社団法人映像情報メディア学会の論文
1990-09-27