All-Optical Regeneration of 40 Gb/s Constant Envelope Alternative Modulation Formats

Comparison of Optical Modulation Formats

Investigation of 40 Gbps DWDM Optical System by using Hybrid Optical Amplifier with Different Modulation Formats

This paper demonstrates the comparison of 40 Gbps DWDM system using hybrid optical amplifier configurations (EDFA-EDFA and EDFA-SOA ) are implemented with RZ and NRZ encoding techniques at various distance along with DCF having dispersion 80 ps/nm/Km . DWDM systems with 4 channels each having a bit rate of 10 Gbps and 0.8 nm equal channel spacing. The performance of EDFA-EDFA and EDFA-SOA hybri...

Constant Envelope OFDM Phase Modulation

OF THE DISSERTATION Constant Envelope OFDM Phase Modulation by Steve C. Thompson Doctor of Philosophy in Electrical Engineering (Communications Theory and Systems) University of California San Diego, 2005 Professor James R. Zeidler, Chair Professor John G. Proakis, Co-Chair Orthogonal frequency division multiplexing (OFDM) is a popular modulation technique for wireless digital communications. I...

Conversions among binary optical modulation formats.

We study the intrinsic relations and conversions among different binary modulation formats such as non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), differential-phase-shift-keying (DPSK), duobinary, and alternate-mark-inversion (AMI). In particular, we experimentally demonstrate the new conversion from CSRZ to duobinary using a Mach-Zehnder delay interfer...

Constant-Envelope Modulation Schemes with Turbo Coding

OF THE THESIS Constant-Envelope Modulation Schemes with Turbo Coding By Nistha Tandiya Master of Science in Electrical Engineering University of California, Irvine, 2015 Professor Ender Ayanoglu, Chair The communication infrastructure is one of the biggest energy consumers in the world. With the expected exponential growth in the demand for wireless traffic, it becomes the foremost priority to ...