Integrated photonics has recently become a leading platform for the realization and processing of optical entangled quantum states in compact, robust scalable chip formats with applications long-distance quantum-secured communication, quantum-accelerated information non-classical metrology. However, light sources developed so far have relied on external bulky excitation lasers making them impractical, not reproducible prototype devices, hindering scalability transfer out lab into real-world...

Continuous-wave pumped optical microresonators have been vastly exploited to generate a frequency comb (FC) utilizing the Kerr nonlinearity. Most of nonlinear materials used build photonic platforms exhibit losses such as multiphoton absorption, free-carrier and dispersion which can strongly affect their performances. In this work, we model FC based on modified Lugiato-Lefever equation (LLE) along with rate develop analytical formulations make quick estimation steady state, bistability,...

The well-established frequency-to-time mapping technique is employed as a convenient and time-efficient method to directly characterize the spectral correlations of biphoton states from pulsed-excited spontaneous parametric down-conversion process. We were enabled by this implement for first time, Hanbury-Brown Twiss measurement, revealing single frequency-mode bandwidth state.

In this paper, we have developed a theory of an off-axis microring resonator (MRR) with single and multiple rings. The inner ring introduces tunable extra notches many striking features in the transmission spectrum which facilitates its use as efficient modulators sensors. A few such when closely packed been used to design compact band rejection filter improved bandwidth (>10 nm). Moreover, these achieved by serially coupled MRRs rings are reject arbitrarily chosen WDM channels. Through...

The group-velocity-led optical event horizon (OEH) in fibers provides a convenient way to efficiently control weak dispersive pulse by comparatively strong solitonic pulse. State-of-the-art experiments demonstrating OEH make use of two different light sources, which increases the system complexity and cost. Here, we propose an elegant cost-effective approach observe through intermodal nonlinear interaction between azimuthally symmetric ${\text{LP}}_{01}$ ${\text{LP}}_{02}$ modes specially...

We demonstrate an efficient ultra-broadband supercontinuum generation in telecom-grade optical fiber by pumping Q-switched subnanosecond laser pulses (0.77 ns) at 1064 nm the normal dispersion region of fiber. The supports several spatial modes this pump wavelength. Multiple sidebands with six Raman stokes spanning over more than 1100 (starting well below 600 and extending beyond 1700 nm) are generated using very low input power (average 57 mW). Theoretical analysis shows that cascaded...

Temporal cavity solitons (CSs) have been proposed to store the information in form of optical bits a single-pump Kerr micro-resonator. However, such buffers (OBs) realized using are essentially asynchronous nature. In this paper, we show that dual-pump scheme can lead both synchronous and robust OB. Numerical simulations reveal resilience performance OB against writing jitters third-order dispersion induced temporal drift. The impact nonideal operating conditions, as unequal pump amplitudes...

In this work, we propose and demonstrate the performance of silicon-on-insulator (SOI) off-axis microring resonator (MRR) as electro-optic modulator (EOM). Adding an extra inner-ring in conventional structure provides control to compensate thermal effects on EOM. It is shown that dynamically controlled bias-voltage applied outer ring has potency quell over a wide range temperature. Thus, besides appositely biased microring, inner with pre-emphasized electrical input message signal enables...

In this work, we propose novel schemes to design on-chip ultra-compact optical directional couplers (DC) and broadband polarization beam splitters (PBS) based on off-centered asymmetric dielectric slot waveguides, respectively. Slot dimensions positions are optimized achieve maximum coupling coefficients between two symmetric non-symmetric slotted Si wire waveguides through overlap integral method. We observe >88% of enhancement in the when size-optimized slots placed optimal positions, with...

We demonstrate the formation of Kerr-induced transient long period grating in a standard single-mode fiber (SMF28) using sub-nanosecond laser pulses, which can be used to realize an efficient all-optical mode conversion and temperature sensing. The supports <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LP</i> <sub xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> spatial modes at 1064-nm...

Dispersive Fourier transform is a characterization technique that allows directly extracting an optical spectrum from time domain signal, thus providing access to real-time of the signal spectrum. However, these techniques suffer sensitivity and dynamic range limitations, hampering their use for special applications in, e.g., high-contrast characterizations sensing. Here, we report on novel approach dispersive transform-based using single-photon detectors. In particular, experimentally...

Abstract Integrated photonics has recently become a leading platform for the realization and processing of optical entangled quantum states in compact, robust, scalable chip formats with applications long-distance quantum-secured communication, quantum-accelerated information processing, non-classical metrology. However, light sources developed so far have relied on external bulky excitation lasers making them impractical, not reproducible prototype devices, hindering scalability transfer...

We develop an analytical model to understand the generation of tunable free spectral range frequency comb (FC) and composite FC using two competing phenomena, namely nondegenerate four-wave mixing (FWM) intensity-dependent modulation instability (MI) in dual-pumped micro-resonator configurations. Our approach is based on popular model. The MI rate at onset, corresponding most susceptible component that conditionally accompanies threshold-less case dual pump, derived. Based model, mutual...

Numerical analysis of single and multiple gold nanowires embedded in triple cores arranged collinear noncollinear configurations photonic crystal fibers (PCFs) is reported. A full-vectorial finite element method used to achieve coupling characteristics plasmonic PCF couplers for both x y polarizations. It demonstrated numerically that the exhibit polarization-independent tunable broadband filter can be tuned according diameter rod(s).

In this study, we apply the concept of sub-wavelength light confinement to achieve flat effective mode area (A <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">eff</sub> ) characteristics over a wide wavelength range 1400 nm in nano-sized dual capillary assisted chalcogenide core optical fibers. An unusual spectral behavior A is observed where increases, remains constant for bandwidth, decreases and again increases with increase wavelength. The...

The quest for realizing an all-optical transistor while fulfilling desired criteria has been around since long time. Various schemes have put forward over the years to achieve it; however, almost all techniques make use of at least two different laser sources. Optical event horizon principle also employed see action in glass fibers using frequency In this paper, we report optical short-length, tailor-made multimode through a single pump only. higher order mode properties fiber and intermodal...

In this work, we propose efficient electro-optic modulation using compact SOI off-axis microring resonator. We show that adding an extra inner-ring in conventional structure provides control to compensate thermal effects on modulator.

We demonstrate an electrically-pumped laser-integrated quantum light source of entangled photons. The hybrid InP-Si <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> N xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> emits frequency-bin two- and high-dimensional photonic states in the telecommunication C-band. This is fully integrated, compact, field-deployable, bringing required scalability stability to sources for information processing.

Today's quantum technology relies on the realization of large-scale non-classical systems in practical formats to enable quantum-accelerated computing, secure communications and enhanced sensing. Optical on-chip frequency combs, characterized by many equidistantly spaced modes, allow storage large amounts information together with control mechanisms can provide systems. In this contribution, we present recent advances controlled generation use combs for processing. First, demonstrate an...

We review recent works in optical signal shaping and advanced characterization techniques within the framework of nonlinear fiber propagation. Specifically, we focus on development methods based dispersive Fourier transform to monitor incoherent spectral broadening processes with enhanced resolution sensitivity. In this framework, also discuss studies modulation instability a noise-driven regime. Paired suitable monitoring techniques, show that controlled coherent seeding can be leveraged...

Integrated quantum photonics can realize and process optical entangled states in highly compact, robust, scalable chips thereby enabling chip scale implementations of long-distance quantum-secured communication, quantum-accelerated information processing, non-classical metrology [1]. Notably, all previous on-chip photonic sources have relied on an external laser to excite nonlinear parametric processes, making these systems overall non-reproducible, bulky, impractical, thus unsuitable for...

We propose single-bus internally-coupled nested microring resonators which are fabrication tolerant and maintain ultra-high Q irrespective of the rings' coupling conditions. The arrangement is highly-efficient in bio-sensing applications for broad ambient temperature range.

We propose single-bus internally-coupled nested microring resonators which are fabrication tolerant and maintain ultra-high Q (>105) irrespective of the rings' coupling conditions. The arrangement is highly efficient in bio-sensing applications for broad ambient temperature range.

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text A. Roy, R. Haldar, and S. K. Varshney, "Synchronous All-Optical Buffer-cum-Logic Gates In Dual-Pump Kerr Microring Resonators," in Frontiers Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper JTu3A.22. Export BibTex Endnote (RIS) HTML Plain alert Save article