Abstract:
The growth of the data traffic for broadband applications and communications has stipulated greater bandwidth capacity in optical fiber transmissions. The demand for optical signal carriers in dense wavelength division multiplexed (DWDM) systems is also growing in-line with this optical technology transformation. Multi-wavelength fiber lasers are one of the attractive solutions to support highly-demanded DWDM systems.
This lecture will cover the state of the art of multi-wavelength fiber lasers in DWDM systems. It will review the needs of multi-wavelength fiber lasers, recent demonstration of DWDM transmission systems and a few key research advancements in generating multiple lasers simultaneously. In general, there are two common techniques commonly utilized; arrayed laser diodes and built-in periodic filters in laser cavity. Recently, nonlinear-based multi-wavelength fiber lasers have attracted huge interest from scientists around the globe. The nonlinear phenomenon in optical fiber amplifier is exploited to create multiple lasers at the same time. The most popular technique is based on slicing a broadband spectrum from a supercontinuum source. On the other hand, a group of laser lines can be also generated from a seed signal. This approach is commonly known as hybrid-gain configuration which manipulates narrow bandwidth of Brillouin gain in optical fibers (around 10-11 GHz). This lecture will focus on recent advancements of multi-wavelength generation in Brillouin-Erbium fiber lasers and Raman-Brillouin fiber lasers.
About the Speaker:
Mohd Adzir Mahdi received his B.Eng. degree from the Universiti Kebangsaan
Malaysia
, and M.Sc. and Ph.D. degrees from the Universiti Malaya in 1996, 1999 and 2002 respectively. He joined the Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra
Malaysia
on January 21, 2003 as an associate professor. Prior to the current appointment, Adzir was the optical design engineer at IOA Corporation,
Sunnyvale
,
USA
. Since 1996, he has been involved in photonics research specializing in optical fiber amplifiers and lasers. He has over 200 publications in journals and conference proceedings. His notable research contributions in this area have earned him international recognition awards; IEEE LEOS Graduate-Student Fellowship and IEEE LEOS Best Student Paper Award, both in the year of 2000. He is a Senior Member of the
Institute
of
Electrical
and Electronics Engineers (IEEE), a member of the Optical Society of America (OSA) and a member of the International Society for Optical Engineering (SPIE).
