Introduction - Optical Signal Processing by Silicon Photonics - page 10

Chapter 3 highlights the standard of optical communication and network the-
ory. It also examines the characteristics of optical communication systems by dis-
cussing different communication media. The chapter also points out the devices
being used and considered for future consideration too.
Chapter 4 focuses on the gradual and time-needed advancements made in the
field of photonics. It also highlights the advancements made in the devices which
are being used and are being prepared for future trends as well. The traditional and
nontraditional motivations regarding selection of silicon as the enabling material
for the usefulness of photonics and the types of SOI waveguides are also presented
with great emphasis and depth.
Chapter 5 presents the theory and subsequent implementation of high-nonlin-
earity in glass fibers and cross phase modulation (XPM) whereas Chap. 6 gives
detail of the super-continuum generation by nonlinear optics.
Chapter 7 provides a theoretical model for pulse propagation inside an SOI
waveguide. The FWM process in SOI waveguides is discussed with an emphasis
on the effects of two-photon absorption and the consequent free-carrier effects. All
optical wavelength conversion is the most repeatedly requisite phenomenon in pre-
sent and future wavelength division multiplexing transmission systems. The utili-
zation of multiplexing techniques such as dense wavelength division multiplexing
(DWDM) and optical time division multiplexing (OTDM) has shown an enormous
increase in the optical transmission capacity.
Chapter 8 describes the FWM and its types in detail. It also depicts the mathe-
matical equations which provide basis for mathematical modeling and subsequent
realization on various platforms. For achieving optical frequency shifting by FWM
in SOI waveguide, a nonlinear phenomenon has been presented. The FWM pro-
cess in SOI waveguides is also discussed with an emphasis on the effects of two-
photon absorption and the consequent free-carrier effects.
Chapter 9 elucidates the research work carried out on Matlab simulink for opti-
cal wavelength conversion by using FWM process in SOI waveguides. It also
extracts conclusion of the research and offers suggestions for future attempts in
the subject area. The last chapter also deals with the losses due to two photon
absorption and free carrier absorption, and how to decrease these losses with SOI
waveguides. The summery of this work, future recommendations and the research
directions of the authors for near future is mentioned.
References
1. Proakis JG, Salehi M (2002) Communication systems engineering. Prentice Hall, Englewood
Cliffs
2. Senior JM (2009) Optical fiber communications principles and practice. Prentice Hall,
Englewood Cliffs