M. Lakshmanan

activity

20182024

P T

-symmetric soliton switch

33 citations · 186 across the 25 of their papers we have counts for

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physics.optics2024

Modulational instability in $P T$ -symmetric Bragg grating structures with four-wave mixing

I. Inbavalli, K. Tamilselvan, A. Govindarajan +2

We investigate the dynamics of modulational instability (MI) in $P T$ -symmetric fiber Bragg gratings with a phenomenon of intermodulation known as four-wave mixing (FWM). Altho…

physics.optics2024

Unique multistable states in periodic structures with saturable nonlinearity. II. Broken $P T$ -symmetric regime

S. Vignesh Raja, A. Govindarajan, M. Lakshmanan

In this work, we observe that the $P T$ -symmetric fiber Bragg gratings (PTFBGs) with saturable nonlinearity (SNL) exhibit ramp-like, mixed, optical multistability (OM) in…

physics.optics2024

Unique multistable states in periodic structures with saturable nonlinearity. I. Conventional case and unbroken $P T$ -symmetric regime

S. Vignesh Raja, A. Govindarajan, M. Lakshmanan

In this work, we predict that periodic structures without gain and loss do not exhibit an S-shaped hysteresis curve in the presence of saturable nonlinearity (SNL). Instead, the in…

Modulational instability in PT-symmetric Bragg grating structures with four-wave mixing

Unique multistable states in periodic structures with saturable nonlinearity. II. Broken PT-symmetric regime

Unique multistable states in periodic structures with saturable nonlinearity. I. Conventional case and unbroken PT-symmetric regime

Modulational instability in $P T$ -symmetric Bragg grating structures with four-wave mixing

Unique multistable states in periodic structures with saturable nonlinearity. II. Broken $P T$ -symmetric regime

Unique multistable states in periodic structures with saturable nonlinearity. I. Conventional case and unbroken $P T$ -symmetric regime