V
Vishwatosh Mishra
Researcher at Indian Institute of Technology Kharagpur
Publications - 22
Citations - 100
Vishwatosh Mishra is an academic researcher from Indian Institute of Technology Kharagpur. The author has contributed to research in topics: Photonic-crystal fiber & Optical fiber. The author has an hindex of 6, co-authored 22 publications receiving 81 citations.
Papers
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Journal ArticleDOI
Free-carrier-driven Kerr frequency comb in optical microcavities: Steady state, bistability, self-pulsation, and modulation instability
Raktim Haldar,Arkadev Roy,Arkadev Roy,Partha Mondal,Vishwatosh Mishra,Shailendra K. Varshney +5 more
TL;DR: In this article, the authors derived analytical expressions for the threshold (normalized) pump detuning that initiates the optical bistability, self-pulsation, and modulation instability (MI) gain and bandwidth in the presence of nonlinear losses.
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Dispersion Engineered Capillary-Assisted Chalcogenide Optical Fiber Based Mid-IR Parametric Sources
TL;DR: In this paper, the dispersion characteristics of the proposed fiber can be tailored externally by temperature when the air-capillary is infiltrated with suitable thermooptic liquids, which has led to design and development of thermally tunable broadband CW pumped optical parametric amplifier (OPA) in mid-IR region with bandwidth greater than 2000 nm.
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Nonlinear interactions in multimode optical fibers
TL;DR: In this paper, the authors address intermodal coupling based nonlinear phenomena in short and long pulse regimes and provide a roadmap for future research directions in the area of multimode nonlinear fiber optics.
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Cascaded Raman and Intermodal Four-Wave Mixing in Conventional Non-Zero Dispersion-Shifted Fiber for Versatile Ultra-Broadband Continuum Generation
TL;DR: In this article, the authors demonstrate an efficient ultra-broadband supercontinuum generation in telecom-grade optical fiber by pumping Q-switched subnanosecond laser pulses (0.77ns) at 1064 nm in the normal dispersion region of the fiber.
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Intermodal nonlinear effects mediated optical event horizon in short-length multimode fiber
TL;DR: In this paper, the authors proposed an elegant and cost-effective approach to observe the group-velocity-led optical event horizon (OEH) through intermodal nonlinear interaction between azimuthally symmetric optical fibers.