| 摘要 |
PROBLEM TO BE SOLVED: To realize information transmission of high quality without using an expensive super-highspeed optical device or the like, in an optical time division multiplex transmission system.SOLUTION: A signal generator 14 uses N+1 optical transmitters for each outputting an optical pulse signal (RZ signal) having a symbol rate of f(baud/sec). In an electro-optic converter 15, optical transmitters corresponding to channels Chto Choutput a wavelength λ1 and a transmitter corresponding to a channel Choutputs a wavelength λ2. On a receiver side, a branching filter and a filter transmitting λ2 therethrough extract only an optical signal pulse of the wavelength λ2, and an optical receiver and a PLL circuit extract a clock frequency f. |
