Search Results - "Dacha, Sai Kanth"

Spatiotemporal characterization of nonlinear intermodal interference between selectively excited modes of a few-mode fiber by Dacha, Sai Kanth, Murphy, Thomas E.

“…Nonlinear propagation of signals in single-mode fibers is well understood, and is typically observed by measuring the temporal profile or optical spectrum of…”
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Theory of four wave mixing-based parametric amplification of spin-orbit modes by Elder, Henry F, Dacha, Sai Kanth, Murphy, Thomas E, Sprangle, Phillip

“…We study the generation of spin-orbit (SO) modes via four-wave mixing (FWM)-based parametric amplification. SO modes carry quantized total angular momentum…”
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Nonlinear rotation of spin-orbit coupled states in hollow ring-core fibers by Dacha, Sai Kanth, Zhu, Wenqi, Agrawal, Amit, Ritter, Kenneth J., Murphy, Thomas E.

“…We experimentally demonstrate that when two spin-orbit coupled orbital angular momentum (OAM) modes of opposite topological charge co-propagate in the Kerr…”
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Spatiotemporal Nonlinear Optical Effects in Multimode Fibers by Dacha, Sai Kanth

“…The advent of the optical fiber in the second half of the 20th century has had numerous consequences not only for the advancement of telecommunication and…”
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Thermometric Control of the Resonance Frequency of a High-Q Si3N4 Microresonator by Dacha, Sai Kanth, Zhao, Yun, McNulty, Karl J., Lipson, Michal, Gaeta, Alexander L.

“…We demonstrate a new method to stabilize the absolute resonance frequency of a high-Q Si {}_{3}\mathrm{N}_{4} microcavity against long term drift using an…”
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Overcoming Thermal Effects with Kerr Soliton Combs in Compact Photonic Structures by Beals, Garrett, Zhao, Yun, McNulty, Karl, Dacha, Sai Kanth, Lipson, Michal, Lipson, Michal, Gaeta, Alexander L., Gaeta, Alexander L.

“…We demonstrate strong thermal effects in the soliton state in a 16-GHz free-spectral range compact spiral microresonator by measuring a thermal-induced…”
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(2+1)D Spatiotemporal Characterization of Nonlinear Interactions between Selectively Excited Spatial Modes of a Few-Mode Fiber by Dacha, Sai Kanth, Murphy, Thomas E.

“…We present a novel approach to measure nonlinear interaction between selectively-excited modes of few-mode fibers. Selective excitation is achieved by…”
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Kerr-induced Rotation of Mixed Orbital Angular Momentum States in Hollow Ring-Core Fibers by Dacha, Sai Kanth, Zhu, Wenqi, Agrawal, Amit, Murphy, Thomas E.

“…We experimentally demonstrate that in the presence of Kerr nonlinearity, the spatial pattern caused by unequal excitation of two degenerate spin-orbit…”
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Spatiotemporal Characterization of Nonlinear Interactions between Selectively Excited Radially Symmetric Modes of a Few-Mode Fiber by Dacha, Sai Kanth, Murphy, Thomas E

“…Nonlinear propagation of signals in single-mode fiber is well understood, and is typically observed by measuring the temporal profile or optical spectrum of an…”
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Generation of Low-Frequency Kerr Combs in Highly Compact Photonic Structures by Beals, Garrett, Zhao, Yun, McNulty, Karl, Sanyal, Swarnav, Dacha, Sai Kanth, Lipson, Michal, Gaeta, Alexander L.

“…We demonstrate on-chip single and multi-soliton generation in a 16-GHz free-spectral range compact spiral microresonator with a total area of 1 mm 2 . We…”
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Flexible Data Rate and Power Efficiency Pulse-Position-Modulation Communication with Independent Free-Running Clocks by Guo, Cheng, Essiambre, Rene-Jean, Dacha, Sai Kanth, Blanco-Redondo, Andrea, Kschischang, Frank R., Banaszek, Konrad, Sandoz, James D., Cloonan, John, Sayem, Ayed A., Vasilyev, Michael

“…Pulse-Position Modulation (PPM) format using independent free-running clocks transmitted optically is demonstrated with PPM orders from 2 10 to 2 16 , enabling…”
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Self-Heating Based Locking of a Laser to a High-Q Si3N4 Microcavity by Dacha, Sai Kanth, Zhao, Yun, Ji, Xingchen, Beals, Garrett J., Sanyal, Swarnava, Lipson, Michal, Gaeta, Alexander L.

“…We demonstrate locking of a laser to an external silicon nitride microcavity resonance without the use of a photodiode. This is achieved by indirectly…”
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Time-Domain Interference of Nonlinearly Interacting Spatial Modes in a Multimode Fiber by Dacha, Sai Kanth, Murphy, Thomas E.

“…The study of nonlinear optics in multimode fibers has gathered considerable interest recently. We report experimental observation of time-domain interference…”
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14 Bits per Photon Detection in the Photon Starved Regime for Deep-Space Optical Communication by Dacha, Sai Kanth, Essiambre, Rene-Jean, Ashikhmin, Alexei, Blanco-Redondo, Andrea, Zhang, Yuanhang, Guo, Cheng, Kschischang, Frank R., Banaszek, Konrad, Ryf, Roland, Weiner, Matthew, Fontaine, Nicolas, Murphy, Thomas E., Burrows, Ellsworth

“…We demonstrate a record 14 bits-per-incident-photon Photon Information Efficiency (PIE) detection using a new transmitter design that produces an average…”
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Record Photon Information Efficiency with Optical Clock Transmission and Recovery of 12.5 bits/photon over an Optical Channel with 77 dB Loss by Essiambre, René-Jean, Guo, Cheng, Dacha, Sai Kanth, Ashikhmin, Alexei, Blanco-Redondo, Andrea, Kschischang, Frank R, Banaszek, Konrad, Weiner, Matthew, Kopf, Rose, Crawley, Ian, Idjadi, Mohamad H, Sayem, Ayed A, Zhao, Jie, Sandoz, James D, Fontaine, Nicolas, Menkart, Nicole, Ryf, Roland, Cloonan, John, Vasilyev, Michael, Murphy, Thomas E, Burrows, Ellsworth C

“…We experimentally demonstrate optical detection at 12.5~bits per incident photon, 9.4~dB higher than the theoretical limit of conventional coherent detection…”
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Regeneration of 10 Gbps BPSK signals through phase sensitive amplification coupled with injection locking by Dacha, Sai Kanth, Iyer, Arjun Natarajan, Sobhanan, Aneesh, Venkitesh, Deepa

“…Phase squeezing using phase sensitive amplifier (PSA) typically involves an increase in amplitude noise which when propagated through a multi span link may…”
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