353 citations · 510 across the 9 of their papers we have counts for
9 papers
Beam propagation in an active nonlinear graded-index fiber
Anuj P. Lara, Samudra Roy, Govind P. Agrawal
A theoretical model is developed by exploiting the variational technique to investigate the evolution of an optical beam inside an optically pumped graded-index fiber amplifier. Th…
Spatial beam dynamics in graded-index multimode fibers under Raman amplification:a variational approach
Ashis Paul, Anuj P. Lara, Samudra Roy +1
We investigate the spatial beam dynamics inside a multimode graded-index fiber under Raman amplification by adopting a semi-analytical variational approach. The variational analysi…
Femtosecond Pulse Trains through Dual-Pumping of Optical Fibers: Role of Third-Order Dispersion
Aku Antikainen, Govind P. Agrawal
Generation of high-repetition-rate, femtosecond, soliton pulse trains through dual-wavelength pumping of a dispersion-decreasing fiber is studied numerically. The achievable shorte…
Lossless Suppression and Enhancement of Soliton Self-Frequency Shifts
Francisco R. Arteaga-Sierra, Aku Antikainen, Govind P. Agrawal
Soliton self-frequency shifts (SSFS) can be suppressed in optical fibers through spectral recoil, but this process leads to losses through continuous transfer of energy to a disper…
Perturbed Dissipative Solitons: A Variational Approach
Ambaresh Sahoo, Samudra Roy, Govind P. Agrawal
We adopt a variational technique to study the dynamics of perturbed dissipative solitons, whose evolution is governed by a Ginzburg--Landau equation (GLE). As a specific example of…
Dynamics of Soliton Cascades in Fiber Amplifiers
F. R. Arteaga-Sierra, A. Antikainen, Govind P. Agrawal
We study numerically the formation of cascading solitons when femtosecond optical pulses are launched into a fiber amplifier with less energy than required to form a soliton of equ…
Resonance vector mode locking
Stanislav A. Kolpakov, Sergey V. Sergeyev, Yuri Loika +3
A mode locked fibre laser as a source of ultra-stable pulse train has revolutionised a wide range of fundamental and applied research areas by offering high peak powers, high repet…
Stimulated Raman scattering cascade spanning the wavelength range of 523 to 1750~nm using a graded-index multimode optical fiber
Hamed Pourbeyram, Govind P. Agrawal, Arash Mafi
We report on the generation of a Raman cascade spanning the wavelength range of 523 to 1750 nm wavelength range, in a standard telecommunication graded-index multimode optical fibe…
Nonlinear Propagation in Multimode and Multicore Fibers: Generalization of the Manakov Equations
Sami Mumtaz, René-Jean Essiambre, Govind P. Agrawal
This paper starts by an investigation of nonlinear transmission in space-division multiplexed (SDM) systems using multimode fibers exhibiting a rapidly varying birefringence. A pri…