Prof. Siddharth Ramachandran Profile

Prof. Siddharth Ramachandran

Professor at Boston Univ

SPIE Involvement:

Author | Editor

Websites:

Company Website

Proceedings Article | 13 March 2024 Open Access

Topological confinement: a new mechanism for light transport in optical fibers

Siddharth Ramachandran

Proceedings Volume PC12865, PC1286501 (2024) https://doi.org/10.1117/12.3011844

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Proceedings Article | 13 March 2024 Presentation

High dimensional structured light quantum sources

Siddharth Ramachandran

Proceedings Volume PC12901, PC129010D (2024) https://doi.org/10.1117/12.3009109

KEYWORDS: Quantum sources, Structured light, Photons, Spectral density, Quantum space, Quantum phenomena, Quantum optics experiments, Quantum entanglement, Quantum engineering, Quantum correlations

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SPIE Journal Paper | 1 September 2023 Open Access

Finding the superior mode basis for mode-division multiplexing: a comparison of spatial modes in air-core fiber

Hongya Wang, Jianzhou Ai, Zelin Ma, Siddharth Ramachandran, Jian Wang

AP, Vol. 5, Issue 05, 056003, (September 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.5.056003

KEYWORDS: Data transmission, Multiplexing, Polarization, Fiber optic communications, Angular momentum, Photonics, Spatial light modulators, Receivers, Optical transmission, Transmitters

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SPIE Journal Paper | 12 June 2023 Open Access

Reconfigurable structured light generation and its coupling to air–core fiber

Yize Liang, Hongya Wang, Xi Zhang, Jianzhou Ai, Zelin Ma, Siddharth Ramachandran, Jian Wang

APN, Vol. 2, Issue 03, 036015, (June 2023) https://doi.org/10.1117/12.10.1117/1.APN.2.3.036015

KEYWORDS: Structured light, Polarization, Structured optical fibers, Quantum light generation, Polarizers, Spatial light modulators, Optical fibers, Free space, Interferometry, Gaussian beams

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SPIE Journal Paper | 12 June 2023 Open Access

Reconfigurable structured light generation and its coupling to air–core fiber

Yize Liang, Hongya Wang, Xi Zhang, Jianzhou Ai, Zelin Ma, Siddharth Ramachandran, Jian Wang

APN, Vol. 2, Issue 03, 036015, (June 2023) https://doi.org/10.1117/12.10.1117/1.APN.2.3.036015

KEYWORDS: Structured light, Polarization, Structured optical fibers, Quantum light generation, Polarizers, Spatial light modulators, Optical fibers, Free space, Interferometry, Gaussian beams

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SPIE Journal Paper | 16 May 2022 Open Access

Multiphoton microscopy for label-free multicolor imaging of peripheral nerve

Lars Rishøj, Iván Coto Hernández, Siddharth Ramachandran, Nate Jowett

JBO, Vol. 27, Issue 05, 056501, (May 2022) https://doi.org/10.1117/12.10.1117/1.JBO.27.5.056501

KEYWORDS: Nerve, Multiphoton microscopy, Second-harmonic generation, Microscopes, Optical fibers, Axons, Microscopy, Imaging systems, Fiber lasers, Collagen

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Proceedings Article | 13 March 2019 Presentation

Soliton self-mode conversion (SSMC): power-scalable frequency conversion with multimode fibers (Conference Presentation)

Siddharth Ramachandran, Govind Agrawal

Proceedings Volume 10897, 108971T (2019) https://doi.org/10.1117/12.2513647

KEYWORDS: Solitons, Frequency conversion, Multimode fibers

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Proceedings Article | 13 March 2019 Presentation

Tailoring SBS thresholds using OAM fiber modes (Conference Presentation)

Gautam Prabhakar, Xiao Liu, Siddharth Ramachandran

Proceedings Volume 10897, 108971P (2019) https://doi.org/10.1117/12.2507497

KEYWORDS: Polarization, Light scattering, Scattering, Scatter measurement, Optical fibers, Fiber lasers

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Proceedings Article | 7 March 2019 Presentation + Paper

High power, ultra-high spectral purity, broadly wavelength tunable cascaded Raman fiber laser

V. Balaswamy, Harshitha S., Siddharth Ramachandran, V. Supradeepa

Proceedings Volume 10897, 108970N (2019) https://doi.org/10.1117/12.2510534

KEYWORDS: Raman spectroscopy, Optical filters, Fiber lasers, Ytterbium, Superluminescent sources, Wave propagation, Electronic filtering, Signal attenuation, Continuous wave operation, Raman scattering

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Proceedings Article | 28 April 2017 Presentation

Optical properties of semiconductor-core fibers for mid-IR transmission (Conference Presentation)

Mustafa Ordu, Jicheng Guo, Boyin Tai, Shyamsunder Erramilli, Siddharth Ramachandran, Soumendra Basu

Proceedings Volume 10109, 101090Q (2017) https://doi.org/10.1117/12.2249691

KEYWORDS: Optical fibers, Mid-IR, Semiconductors, Glasses, Cladding, Transmission electron microscopy, Diffusion, Oxygen, Optical properties, Optical semiconductors

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Proceedings Article | 26 February 2013 Paper

Marko Laurila, Roman Barankov, Mette Jørgensen, Sidsel Petersen, Thomas Alkeskjold, Jes Broeng, Jesper Lægsgaard, Siddharth Ramachandran

Proceedings Volume 8601, 86010K (2013) https://doi.org/10.1117/12.2002808

KEYWORDS: Optical filters, Cladding, Image filtering, Fermium, Frequency modulation, Waveguides, Polarization, Resonators, Field emission displays, Neodymium

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Proceedings Article | 25 February 2008 Paper

Optimization of higher order mode fibers for dispersion management of femtosecond fiber lasers

Lars Grüner-Nielsen, Siddharth Ramachandran, Kim Jespersen, Samir Ghalmi, Martin Garmund, Bera Pálsdóttir

Proceedings Volume 6873, 68730Q (2008) https://doi.org/10.1117/12.774964

KEYWORDS: Dispersion, Mode locking, Fiber lasers, Ytterbium, Oscillators, Femtosecond fiber lasers, Optical fibers, Mirrors, Femtosecond phenomena, Near field

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Proceedings Article | 12 September 2007 Paper

Sensitivity control of optical fiber biosensors utilizing turnaround point long period gratings with self-assembled polymer coatings

Erika Gifford, Z. Wang, S. Ramachandran, J. Heflin

Proceedings Volume 6659, 66590D (2007) https://doi.org/10.1117/12.734392

KEYWORDS: Biosensors, Refractive index, Optical fibers, Signal attenuation, Cladding, Etching, Molecules, Silica, Nanoparticles, Thin films

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Proceedings Article | 13 September 2005 Paper

Sensitivity of long period fiber gratings to nanoscale ionic self-assembled multilayers

Zhiyong Wang, J. Heflin, Kevin Vancott, Rogers Stolen, Siddharth Ramachandran, Samir Ghalmi

Proceedings Volume 5925, 59250U (2005) https://doi.org/10.1117/12.616002

KEYWORDS: Refractive index, Thin films, Cladding, Multilayers, Optical fibers, Biosensors, Sensors, Annealing, Silica, Molecules

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Proceedings Article | 30 July 2001 Paper

Higher-order-mode dispersion compensation: enabler for long-distance WDM at 40 Gb/s

Siddharth Ramachandran

Proceedings Volume 4532, (2001) https://doi.org/10.1117/12.436014

KEYWORDS: Dispersion, Signal attenuation, Wavelength division multiplexing, Eye, Polarization, Nonlinear optics, Optical communications, Picosecond phenomena, Raman spectroscopy, Signal to noise ratio

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