A5088212367- Photonic and Optical Devices
- Plasmonic and Surface Plasmon Research
- Photonic Crystals and Applications
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Nanowire Synthesis and Applications
- Semiconductor Quantum Structures and Devices
- Metamaterials and Metasurfaces Applications
- Quantum Dots Synthesis And Properties
- Neural Networks and Reservoir Computing
Lumentum (United States)
2023
University of California, San Diego
2017-2022
Enabling cost-effective and power-efficient laser source on a silicon photonics (SiPh) platform is major goal that has been highly sought after. In the past two decades, tremendous effort made to develop various on-chip integration techniques enhance SiPh circuits with efficient light-emitting materials. Here we review our recent advancements in hybrid flip-chip of III-V lasers 300-mm monolithic platform. By leveraging advanced complementary metal oxide semiconductor (CMOS) manufacturing...
Abstract The past two decades have seen widespread efforts being directed toward the development of nanoscale lasers. A plethora studies on single such emitters helped demonstrate their advantageous characteristics as ultrasmall footprints, low power consumption, and room-temperature operation. Leveraging knowledge about nanolasers, next phase nanolaser technology will be geared scaling up design to form arrays for important applications. In this review, we discuss recent progress array...
To achieve high packing density in on-chip photonic integrated circuits, subwavelength scale nanolasers that can operate without crosstalk are essential components. Metallo-dielectric especially suited for this type of dense integration due to their lower Joule loss and nanoscale dimensions. Although coupling between optical cavities when placed proximity one another has been widely reported, whether the phenomenon is induced metal-clad not investigated thus far. We demonstrate two...
To realize ubiquitously used photonic integrated circuits, on-chip nanoscale sources are essential components. Subwavelength nanolasers, especially those based on a metal-clad design, already possess many desirable attributes for an source such as low thresholds, room-temperature operation and ultra-small footprints accompanied by electromagnetic isolation at pitch sizes down to ∼50 nm. Another valuable characteristic would be control over its emission wavelength intensity in real-time. Most...
Phase-locked laser arrays have been extensively investigated in terms of their stability and nonlinear dynamics. Specifically, enhancing the phase-locking allows to generate high-power steerable coherent optical beams for a plethora applications, including remote sensing communications. Compared other coupling architectures, laterally coupled lasers are especially desirable since they allow denser integration simpler fabrication process. Here, we present theoretical effects varying...
The capability of nanolasers to generate coherent light in small volume resonators has made them attractive be implemented future ultra-compact photonic integrated circuits. However, compared conventional lasers, are also known for their broader spectral linewidths, that usually on the order 1 nm. While it is well broad linewidths emitters originate from various noise sources, there been no rigorous study evaluating origins linewidth broadening date best our knowledge. In this manuscript, we...
A measurement method that can be used to extract the relative intensity noise of a nanolaser is introduced and analyzed. The based on optical injection emission from nanolaser, serving as master oscillator, transferring its fluctuations low-noise semiconductor laser slave oscillator. Using stochastic rate equation formalism, we demonstrate total system weighted superposition individual lasers. We further discuss analytical relations spectrum nanolaser. Finally, use mutual correlation...
We demonstrated coupling between two metallo-dielectric nanolasers using three-dimensional finite-element method simulations. Splits in resonant wavelength and quality factor were observed due to bonding anti-bonding states. To prevent coupling, cavity resonances slightly detuned.
We discusses nanoscale metal-dielectric-semiconductor resonant gain geometries confined in three dimensions used to create a new type of light emitters. When these emitters are driven pulsed regime, dynamic hysteresis is observed and characterized. Coupling between two metallo-dielectric nanolasers results splitting the resonance.
We discuss nanoscale metal-dielectric-semiconductor resonant gain geometries to create a new type of light emitters focusing on three key aspects: second order intensity correlation characterizations, direct modulation and electromagnetic isolation in dual nanolaser system.
We demonstrate that the fundamental thermal fluctuations can induce significant linewidth broadening effect in metallo-dielectric nanolasers through numerical simulation. Broader linewidths are observed with decrease of resonator dimensions and increase ambient temperatures.
Dense photonic integration requires miniahrrization of materials, devices and subsystems, including passive components (e.g., engineered composite metamaterials, filters, etc.), active lasers, modulators nonlinear wave mixers) integrated circuits (Fourier transform spectrometer, programmable phase modulator free space modes, etc.). These novel are needed for future signal processing neuromorphic processors.
We discuss nanoscale metal-dielectric-semiconductor resonant gain geometries to create a new type of light emitters focusing on three key aspects: second order intensity correlation characterizations, direct modulation and electromagnetic isolation in nanolaser system.
We observe from the bifurcation analysis that high spontaneous emission factor β contributes towards stable phase locking of two laterally coupled semiconductor lasers, with varying pump rate and non-zero frequency detuning being considered.
Bridge-coupled metallo-dielectric nanolasers that can operate in the in-phase or out-of-phase modes are experimentally demonstrated. The lasing action is confirmed by conventional characterizations, whereas operating identified near-field and far-field imaging.
Phase-locked laser arrays have been extensively investigated in terms of their stability and nonlinear dynamics. Specifically, enhancing the phase-locking allows to generate high-power steerable coherent optical beams for a plethora applications, including remote sensing communications. Compared other coupling architectures, laterally coupled lasers are especially desirable since they allow denser integration simpler fabrication process. Here, we present theoretical effects varying...
We experimentally demonstrate bridge-coupled metallo-dielectric nanolasers that can operate in the in-phase or out-of-phase locking modes at room temperature. By varying length of bridge, we show coupling coefficients be realized support stable operation any these two modes. Both coupled nanolaser designs have been fabricated and characterized for experimental validation. Their lasing behavior has confirmed by spectral evolution, light-in light-out characterizations, emission linewidth...