In this paper, the influence of the burstiness of IP packets on nonlinear effects in dynamical optical Networks such as
XPM (cross phase modulation) and FWM (four-wave mixing) are investigated and simulated by adding revised Poisson
distributed traffic parameters in the nonlinear Schrödinger equation (NLSE).From simulations, different eye diagrams
with different IP traffic loads, different fiber input light powers are achieved. When the input power is bigger than 3 dBm
with 40 channels or bigger than 5dBm with 16 channels, the effect of IP bursty traffic could depredates eye diagrams
dramatically. The research results are useful for router finding and system design.
A novel high speed Optical Frequency-domain Transmission method and System (OFTS) based on two time
lenses is proposed and analyzed in this paper. By using the unchanged spectral profile through light
propagations in fiber, the long-haul optical transmission over 100Gbps per channel can be achieved with
highly tolerance of linear distortion such as PMD, chromatic dispersion, time jitter etc. In the novel method
and system, a time lens is used at the transmitter to convert the initial time domain signal into frequency
domain signal. And at the receiver, another time lens is used to transform the received frequency domain
signal back to time domain. To prove the advantages of OFTS, a specifically designed 10×100Gbps OFTS is
numerically simulated over 1880km transmission without PMD compensation.
A simple low-cost wavelength-shared WDM-PON (Wavelength-Division Multiplexing Passive Optical
Network) system using star-shaped optical fiber couples, one tunable laser, AWG (Array Waveguide Gating)
is proposed in this paper. In this simple architecture, a
star-shaped optical fiber couple and a tunable laser are
used for 32 sources to reduce the cost dramatically. Comparing with the normal OLT(Optical Line Terminal)
controlling ONU(Optical Network Unit) software method, a hardware wavelength collision test method to
avoid the wavelength collision for upstream channels is used in the novel system which can reduce delay
time for upstream channels. Transmission tests show that the system and the method are efficient which are
useful in FTTH(Fiber to Home).
The direct modulation characteristics and problems of a novel monolithically integrated transceiver for
FTTH is analyzed in this paper along with the proposing of the novel structure and performance of this device. Through
these analyses, its output beam spectrogram under 8GHz and 10GHz modulation are investigated and achieved.