Aditya Kakkar

TL;DR: An extensive study of equalization enhanced phase noise in coherent optical system for all practical electronic dispersion compensation configurations reveals that there are only eight practicable all-electronic impairment mitigation configurations and the existence and the cause of EEPN depend on the DSP schemes.

TL;DR: In this paper , the authors proposed coherent transceivers based on digital subcarrier multiplexing (DSCM) for P2P and multi-hop optical networks, which can reduce the number of opto-electro-opto stages, halve the bookended transcevers, and provide a better match for existing hub-and-spoke (H&S) traffic patterns in fast-growing and dynamic access/metro segments.

TL;DR: A DMT transmission system with 1.55-μm EML is experimentally demonstrated using nonlinearity-aware time domain super-Nyquist image induced aliasing and the capacity is improved by ∼16.8%(33.1%) with proposed method for 4(40) km transmission.

TL;DR: In this article, a two-stage n-PSK partitioning carrier phase recovery (CPR) scheme for circular multilevel quadrature amplitude modulation (C-mQAM) constellations is presented.

TL;DR: In this article , the authors discuss the digital signal processing techniques that are used in the design of high performance coherent modems to compensate for adverse channel effects such as fiber impairments and optoelectronic device non-idealities.