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@article{180627,
        author = {Sanika Atul  Inamdar},
        title = {Recent Developments in Photonic Integration: Reservoir Computing in Photonics using Silicon Microring Nonlinearities},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {1},
        pages = {1600-1609},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=180627},
        abstract = {The rapid evolution of integrated photonics 
is revolutionizing the landscape of high-speed, energy
efficient computing. One of the most promising 
frontiers in this domain is Photonic Reservoir 
Computing (PRC), a neuromorphic paradigm that 
leverages the inherent dynamics and parallelism of 
photonic systems. This paper provides an in-depth 
exploration of reservoir computing implemented 
through nonlinear effects in silicon microring 
resonators (MRRs)—a scalable and CMOS-compatible 
platform for optical information processing.  
We examine the fundamental physical processes, such 
as two-photon absorption, free carrier dispersion, and 
thermal-optic phenomena, that facilitate nonlinear 
transformation and short-term memory essential for 
RC operations. Recent advances in photonic integration 
are 
surveyed, 
highlighting 
how 
MRR-based 
architectures support time-multiplexed virtual node 
generation and can be effectively deployed for complex 
signal processing tasks. A simulation framework in 
MATLAB is presented to model the nonlinear carrier 
dynamics and evaluate the RC system on a distorted 
QPSK signal with chromatic dispersion and Kerr 
nonlinearity. Results demonstrate accurate symbol 
recovery through a simple linear readout, validating the 
feasibility of silicon microrings for high-performance 
PRC. We further discuss emerging applications in AI
on-Chip inference engines, fiber-optic communications, 
and neuromorphic sensor fusion, and outline challenges 
and opportunities in scaling and enhancing photonic 
reservoir systems. This work positions silicon 
microring-based PRC as a compelling solution for next
generation integrated photonic computing.},
        keywords = {Photonic Reservoir Computing, Silicon  Microring, Nonlinear Optics, Time-Multiplexing,  Neuromorphic Computing, Integrated Photonics,  QPSK Equalization},
        month = {June},
        }