This is the 16 channel 10 Gbit/s WDM-PON transmission system with NRZ intensity modulation
. We also evaluate the performance of 10 Gbit/s DB transmission system, investigating the benefits of DB WDM-PON in comparison with NRZ WDM-PON.
Generally a binary intensity modulation
is used to modulate the object beam.
In conclusion, light intensity modulation
based on TvPC is proposed and demonstrated.
This method of transporting RF signals over the fiber is called Intensity Modulation
with Direct Detection (IM-DD), and is the simplest form of the RoF link .
The periodical intensity modulation
produced by interference pattern results in a local and periodical removal of material obtaining a quite regular surface topography as indicated in (Fig.
In analog oscilloscope technology, intensity modulation
is a natural phenomenon of the scope's vectortype display, which is swept with an electron beam.
Anderson will be installed with the SIMTEC(TM) -- IMRT (Intensity Modulation
Radiation Therapy)/Productivity module and PRIMEVIEW - the new graphical user interface.
To ensure that the intensity modulation
was a maximum, the input beam was polarized at 45 degrees to the axes of the fiber.
In addition to intensity modulation
, there are two methods of generating intensity-modulated light.
Moreover, since intensity modulation
with direct detection (IM/DD) is adopted, a direct current (DC) is required to make sure that the transmitted signals are real and positive in the VLC system.
An intensity modulation
can be organized into different classes based on interconnection, optical principle and via local oscillator.
In the first system for optical signal modulation in all three channels differential binary phase shift keying (DPSK) was used, in the second--the intensity modulation
(IM) and in the third--polarization shift keying were used, while the fourth is a combined transmission system, where for the first channels optical signal modulation NRZ DPSK was used, for the second channel--NRZ--OOK and third--2--POLSK.