The steady increase in volume of data transfer will ultimately lead to a
need for a radically new approach to telecommunication. Incremental
approaches in electronic speeds are reaching the physical limits of what
is possible. With optical pulses of a few tens of femtoseconds (fs)
that are routinely produced, digital communication could in principle
reach a rate of tens of THz. The fundamental difficulty in exploiting
the high potential data rate of femtosecond optical pulses is that the
original signal to be transmitted is at a much slower clock rate, in the
GHz rather than THz range.
Time multiplexing is proposed in an integrated optics approach, at the
traditional wavelength of the present optical communication in fibers.
Different approaches for the emitter, the receiver, and synchronization
Time multiplexing is promising for digital communication in the rate of
tens of THz. The speed at which each channel is broadcast is not limited
by the electronics any more. With time multiplexing approach, it is
possible to exploit the fs capability of fs optics. And, the shorter the
pulse, the larger the number of channels available.
However, in wavelength multiplexing, another approach promising for
THz communication, the number of channels is limited by the bandwidth of
the emitting/amplifying laser medium. Thus the shorter the pulse, the
smaller the number of channels is available. In this approach, it is
still the electronics that determines the speed at which each channel is
broadcast. And it is not possible to exploit the fs capability of
STC has filed intellectual property on this exciting new technology and is currently exploring commercialization options. If you are interested in information about this or other technologies, please contact Arlene Mirabal at email@example.com or 505-272-7886.