A5070286500- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Optical Network Technologies
- Neural Networks and Reservoir Computing
- Semiconductor Lasers and Optical Devices
- Advanced Photonic Communication Systems
- Quantum Information and Cryptography
- Acoustic Wave Resonator Technologies
- Quantum optics and atomic interactions
- Quantum and electron transport phenomena
- Optical Coherence Tomography Applications
- Full-Duplex Wireless Communications
- Advanced Fluorescence Microscopy Techniques
- Mechanical and Optical Resonators
- Advanced Memory and Neural Computing
- Laser Material Processing Techniques
- Electrical Contact Performance and Analysis
- Quantum Computing Algorithms and Architecture
- Advanced Fiber Optic Sensors
- Diamond and Carbon-based Materials Research
- Quantum many-body systems
- Perovskite Materials and Applications
- Laser-Matter Interactions and Applications
- Magneto-Optical Properties and Applications
- Semiconductor materials and devices
University of Pennsylvania
2017-2025
Nokia (United States)
2023-2025
California University of Pennsylvania
2022-2025
Providence College
2023-2025
Abstract A single tunable filter simplifies complexity, reduces insertion loss, and minimizes size compared to frequency switchable banks commonly used for radio (RF) band selection. Magnetostatic wave (MSW) filters stand out their wide, continuous tuning high-quality factor. However, MSW employing electromagnets consume excessive power space, unsuitable consumer wireless applications. Here, we demonstrate miniature high selectivity with zero static consumption, occupying less than 2 cc. The...
Abstract Low noise stable lasers have far-reaching applications in spectroscopy, communication, metrology and basic science. The Pound−Drever−Hall laser stabilization technique is widely used to stabilize different types of these areas. Here we report the demonstration an integrated system that can a low-cost realize compact inexpensive light source, which ultimately impact many fields science engineering. We present architecture utilizing electronically reconfigurable Mach−Zehnder...
Stable lasers play a significant role in precision optical systems where an electro-optic laser frequency stabilization system, such as the Pound-Drever-Hall technique, measures and actively stabilizes it by comparing to reference. Despite their excellent performance, there has been trade-off between complexity, scalability, noise measurement sensitivity. Here, we propose experimentally demonstrate modulation-free method using integrated cavity-coupled Mach-Zehnder interferometer...
Abstract As quantum networks expand and are deployed outside research laboratories, a need arises to design integrate compact control electronics for each memory node. It is essential understand the performance requirements such systems, especially concerning tolerable levels of noise, since these specifications dramatically affect system's complexity cost. Here, using an approach that can be easily generalized across quantum‐hardware platforms, case study based on nitrogen‐vacancy (NV)...
Abstract In the past decade, field of topological photonics has gained prominence exhibiting consequential effects in quantum information science, lasing, and large-scale integrated photonics. Many these systems exhibit protected states, enabling robust travel along their edges without being affected by defects or disorder. Nonetheless, conventional structures often lack flexibility for implementing different models tunability postfabrication. Here, we present a method to implement...
Stable lasers are essential in precision optical systems, where noise suppression and extended locking range critical for long-term stability. However, conventional stabilization techniques often involve trade-offs between achievable phase noise, complexity, scalability, range. Here, we propose experimentally demonstrate a modulation-free laser system that integrates cavity-coupled Mach-Zehnder interferometer (CCMZI) with an aided acquisition (AAQ) (CCMZI-AAQ). The implemented CCMZI-AAQ,...
We demonstrate a modulation-free laser stabilization system using cavity-coupled MZI with aided acquisition on low-loss SiN chip, achieving more than an order-of-magnitude improvement in locking range and over 36 dB noise suppression.
We demonstrate dual-wavelength distributed acoustic sensing over 37 km of standard single-mode fiber using φ -OFDR, utilizing a scalable hybrid-integrated laser chip frequency-locked to high-Q integrated SiN coil resonator.
We demonstrate an optical general matrix multiplication using incoherent light source and wavelength multiplexing to multiply two two-dimensional matrices with positive negative elements provide parallel readout of the output matrix, without hardware or time multiplexing.
Optical frequency synthesizers have widespread applications in optical communication, sensing, and ranging systems. These typically consist of an electro-optical phase-locked loop (EOPLL) that phase locks a widely tunable laser (TL) to the teeth highly stable comb. In this paper, partially integrated synthesizer is reported, where low-noise comb used as reference. proposed architecture, synthesis done two phases. coarse tuning phase, distributed Bragg reflector continuously tuned by...
Solid-state electron spins are key building blocks for emerging applications in quantum information science, including computers, communication links, and sensors. These solid-state mainly controlled using complex microwave pulse sequences, which typically generated benchtop electrical instruments. Integration of the required electronics will enable realization a scalable low-power compact optically addressable system. Here, we report an integrated reconfigurable control system, is used to...
We experimentally demonstrate optical detection at 12.5~bits per incident photon, 9.4~dB higher than the theoretical limit of conventional coherent detection. A single laser transmits both data and clock, undergoes 77~dB attenuation before quantum followed by clock recovery.
Optical neural networks (ONNs) enable high speed, parallel, and energy efficient processing compared to their conventional digital electronic counterparts. However, realizing large scale ONN systems is an open problem. Among various integrated non-integrated ONNs, free-space diffractive ONNs benefit from a number of pixels spatial light modulators realize millions neurons. significant fraction computation time consumed by the nonlinear activation function that typically implemented using...
On-chip optical frequency comb generation using recursive electro-optic modulation is demonstrated. The chip, fabricated on IME 180 nm SOI process, used to generate a 120 GHz wide with 10 tooth-spacing.
Here, an enhanced frequency noise discriminator is proposed using a cavity-coupled Mach-Zehnder interferometer and demonstrated on general-purpose programmable integrated photonics platform. The measurement sensitivity similar to the well-known Pound-Drever-Hall architecture but owns passive, simpler, more compact design. structure can be utilized in laser stabilization architectures.
Stable narrow-linewidth light sources play a significant role in many precision optical systems. Electro-optic laser frequency stabilization systems, such as the well-known Pound-Drever-Hall (PDH) technique, have been key components of stable systems for decades. These control loops utilize an noise discriminator (OFND) to measure and convert it electronic servo signal. Despite their excellent performance, there has trade-off between complexity, scalability, power consumption, measurement...
Acousto-optic integration offers numerous applications including low-loss microwave signal processing, nonreciprocal light propagation, frequency comb generation, and broadband acousto-optic modulation. State-of-the-art systems are mainly implemented entirely using in-house fabrication processes, which despite excellent performance typically suffer from low yield not compatible with mass production through foundry processes. Here, we demonstrate a highly efficient wideband modulator (AOM) on...
We demonstrate an integrated dual-polarization phase retrieval receiver. It uses silicon waveguides and resonators to recover from intensity-only measurements. show of a polarization-division multiplexed 30-GBd QPSK signal over 80 km SSMF.
We stabilize a hybrid-integrated multi-wavelength laser to photonic-integrated 4.0-meter-coil resonator, with 48 MHz FSR, achieving an 89 Hz integral linewidth and 4.3×10 -13 frequency stability at 10.5 ms for 2 different wavelength channels.
We demonstrate a wideband integrated modulation-free laser stabilization system using commercial low-loss SiN process. The photonic chip achieves more than 40 dB frequency noise suppression while occupying 6 mm 2 area.
Atomic layer deposition (ALD) and sputtering of strongly correlated perovskite nickelate thin films are emerging fields for wafer-scale demonstration quantum technologies. Functional properties such oxide materials proof-of-principle non-Von Neumann photonic computing networks reported.
We demonstrate dual-frequency stabilization of a hybrid-integrated multi-channel laser to an integrated high Q-factor silicon nitride (SiN) coil resonator with more than 40 dB frequency noise suppression. The locked channels are utilized for proof-of-concept fiber sensing experiment.
We demonstrate a modulation-free laser stabilization system using cavity-coupled MZI with aided acquisition on low-loss SiN chip, achieving more than an order-of-magnitude improvement in locking range and over 36 dB noise suppression.