Lianping Hou
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View article: Dual-wavelength distributed feedback laser based on waveguide Bragg grating microcavities
Dual-wavelength distributed feedback laser based on waveguide Bragg grating microcavities Open
We demonstrate a new, to the best of our knowledge, dual-wavelength distributed feedback laser platform based on a waveguide Bragg grating microcavity incorporating uniform sidewall gratings. This is the first single-section, single-contac…
View article: A Linear‐to‐Linear Cross‐Polarization Conversion q‐BIC Metasurface for Transmission Mode Mid‐Infrared Spectral Filtering
A Linear‐to‐Linear Cross‐Polarization Conversion q‐BIC Metasurface for Transmission Mode Mid‐Infrared Spectral Filtering Open
Metasurfaces supporting high‐quality‐factor quasi‐bound states in the continuum (q‐BIC) modes typically operate in reflection mode. By using the chiral circular polarization conversion property, q‐BIC can be applied to transmission‐mode wa…
View article: Energy-efficient all-optical control of optomechanical photonic crystal nanobeam cavities
Energy-efficient all-optical control of optomechanical photonic crystal nanobeam cavities Open
All-optical control of silicon photonic devices is vital for on-chip signal processing, computing, and switching, but remains limited by silicon’s weak nonlinearities and high-power demand. Here, we propose, fabricate, and demonstrate a 1D…
View article: Narrow-linewidth monolithic topological interface state extended laser with optical injection locking
Narrow-linewidth monolithic topological interface state extended laser with optical injection locking Open
Narrow-linewidth lasers are essential for coherent optical applications, including communications, metrology, and sensing. Although compact semiconductor lasers with narrow linewidths have been demonstrated, achieving high spectral purity …
View article: TE1 mode emission in DFB semiconductor lasers based on hybrid mode resonance
TE1 mode emission in DFB semiconductor lasers based on hybrid mode resonance Open
We theoretically analyzed the hybrid transverse mode resonance characteristics of a π-phase-shifted anti-symmetric Bragg grating distributed feedback semiconductor laser and experimentally demonstrated this phenomenon for the first time. U…
View article: Broadband 100 GHz Frequency Comb From an Asymmetric MQW Passively Mode-Locked Laser
Broadband 100 GHz Frequency Comb From an Asymmetric MQW Passively Mode-Locked Laser Open
We report a passively mode-locked AlGaInAs/InP laser diode based on an asymmetric multiple quantum well structure, designed for 100 GHz optical frequency comb generation near 1.5 μ m. The active region comprises quantum wells with two diff…
View article: A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division
A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division Open
Recent advancements have broadened the application of photon filters based on Bragg gratings within optical communication networks and optical input/output interfaces. Traditional gratings, however, suffer from a fixed refractive index mod…
View article: Simultaneous multi-wavelength mode-locked DFB laser based on waveguide Bragg grating microcavities
Simultaneous multi-wavelength mode-locked DFB laser based on waveguide Bragg grating microcavities Open
We demonstrate, for the first time to the best of our knowledge, a monolithic multi-wavelength mode-locked distributed feedback (DFB) laser based on waveguide Bragg grating microcavities, achieving simultaneous three-wavelength lasing near…
View article: All-optical reconfigurable photonic crystal-microring hybrid cavities with high-efficiency tuning via the mechanical Kerr effect
All-optical reconfigurable photonic crystal-microring hybrid cavities with high-efficiency tuning via the mechanical Kerr effect Open
All-optical control of silicon photonic integrated devices is crucial for on-chip applications such as signal processing, computing, and switching. A key limitation of current integrated devices is high power consumption, stemming from the…
View article: Narrow Linewidth Laser Based on Extended Topological Interface States in 1D Photonic Crystals
Narrow Linewidth Laser Based on Extended Topological Interface States in 1D Photonic Crystals Open
Advances in 1D topological photonic crystals have enabled robust light‐emitting devices through a topological interface state at the cavity center. In this study, a 1D TIS‐extended photonic crystal (1D‐TISE‐PhC) structure both theoreticall…
View article: Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings
Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings Open
We have developed an integrated dual-band photonic filter (PF) utilizing equivalent chirped four-phase-shifted sidewall-sampled Bragg gratings (4PS-SBG) on a silicon-on-insulator platform. Using the reconstruction equivalent-chirp techniqu…
View article: Heterogeneous-free narrow linewidth semiconductor laser with optical injection locking
Heterogeneous-free narrow linewidth semiconductor laser with optical injection locking Open
Narrow linewidth lasers are indispensable for coherent optical systems, including communications, metrology, and sensing. Although compact semiconductor lasers with narrow linewidths and low noise have been demonstrated, their spectral pur…
View article: Multi-wavelength DFB laser based on a sidewall third-order four phase-shifted sampled Bragg grating with uniform wavelength spacing
Multi-wavelength DFB laser based on a sidewall third-order four phase-shifted sampled Bragg grating with uniform wavelength spacing Open
We present the first, to our knowledge, demonstration of a 1550 nm multi-wavelength distributed feedback (MW-DFB) laser employing a third-order, four-phase-shifted sampled sidewall grating. By utilizing linearly chirped sampled gratings an…
View article: Continuous phase modulation technology based on grating period interval for high grating coupling coefficient and precise wavelength control
Continuous phase modulation technology based on grating period interval for high grating coupling coefficient and precise wavelength control Open
A novel, to the best of our knowledge, grating modulation technique for distributed feedback laser arrays is proposed and demonstrated. This method modifies the initial phase within each grating period, applying a total phase shift that in…
View article: Narrow linewidth distributed feedback lasers utilizing distributed phase shift
Narrow linewidth distributed feedback lasers utilizing distributed phase shift Open
This study proposes and experimentally demonstrates a distributed feedback (DFB) laser with a distributed phase shift (DPS) region at the center of the DFB cavity. By modeling the field intensity distribution in the cavity and the output s…
View article: Determination the crystallographic information of hexagonal magnesium via X-ray diffraction profiles
Determination the crystallographic information of hexagonal magnesium via X-ray diffraction profiles Open
Researching the crystallographic information is imperative in hexagonal magnesium. In this paper, the comparative evaluation on the crystallite size and shape, strain and texture are carried with semi-quantitively techniques, such as Willi…
View article: Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings
Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings Open
We have developed an integrated dual-band photonic filter (PF) utilizing equivalent chirped four-phase-shifted sidewall-sampled Bragg gratings (4PS-SBG) on a silicon-on-insulator (SOI) platform. Using the reconstruction equivalent-chirp te…
View article: Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings
Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings Open
We have developed a photonic filter featuring dual independently tunable passbands. Employing the reconstruction equivalent-chirp technique, we designed linearly chirped sampled Bragg gratings with two equivalent phase shifts positioned at…
View article: Continuous Phase Modulation Technology Based on Grating Period Interval for High Grating Coupling Efficiency and Precise Wavelength Control
Continuous Phase Modulation Technology Based on Grating Period Interval for High Grating Coupling Efficiency and Precise Wavelength Control Open
A novel grating modulation technique for laser arrays is proposed and demonstrated. This method modifies the initial phase within each grating period, applying a total phase shift that increments in an arithmetic progression, ensuring equa…
View article: Multi-Wavelength DFB Laser Based on Sidewall Third Order Four Phase-Shifted Sampled Bragg Grating with Uniform Wavelength Spacing
Multi-Wavelength DFB Laser Based on Sidewall Third Order Four Phase-Shifted Sampled Bragg Grating with Uniform Wavelength Spacing Open
We present the first demonstration of a 1550 nm multi-wavelength distributed feedback (MW-DFB) laser employing a third-order, four-phase-shifted sampled sidewall grating. By utilizing linearly chirped sampled gratings and incorporating mul…
Ultrastable 10 GHz Mode-Locked Laser on Semi-Insulating Substrate Through RF Injection Locking Open
We have developed a passive semiconductor mode-locked laser on a semi-insulating (S.I.) substrate, which significantly reduces parasitic capacitance. This allows for efficient direct modulation and improved performance, making it ideal for…
View article: Narrow Linewidth Distributed Feedback Lasers Utilizing Distributed Phase Shift
Narrow Linewidth Distributed Feedback Lasers Utilizing Distributed Phase Shift Open
This study proposes and experimentally demonstrates a distributed feedback (DFB) laser with a distributed phase shift (DPS) region at the center of the DFB cavity. By modeling the field intensity distribution in the cavity and the output s…
View article: Subwavelength Grating Cascaded Microring Resonator Biochemical Sensors with Record-High Sensitivity
Subwavelength Grating Cascaded Microring Resonator Biochemical Sensors with Record-High Sensitivity Open
Photonic integrated circuit biochemical and biomedical sensors show promising applications in medical diagnosis, food security, healthcare, and environmental monitoring. Silicon-on-insulator subwavelength grating waveguides and cascaded mi…
Monolithic Dual Wavelength DFB Lasers Based on Sidewall Gratings for THz/MMW Signal Generation Open
We have developed a series of dual-wavelength DFB lasers (DWLs) based on different sidewall grating designs. These include DWLs utilizing uniform Bragg gratings (UBG), conventional sampled Bragg gratings (C-SBG), two-phase shifted sampled …
View article: Narrow Linewidth Laser Based on Extended Topological Interface States in One-Dimensional Photonic Crystals
Narrow Linewidth Laser Based on Extended Topological Interface States in One-Dimensional Photonic Crystals Open
Recent advances in topological one-dimensional photonic crystal concepts have enabled the development of robust light-emitting devices by incorporating a topological interface state (TIS) at the cavity center. In this study, we theoretical…
View article: Dual-wavelength distributed feedback laser array based on four-phase-shifted sampled Bragg grating for terahertz generation
Dual-wavelength distributed feedback laser array based on four-phase-shifted sampled Bragg grating for terahertz generation Open
We propose and experimentally demonstrate a dual-wavelength distributed feedback (DFB) laser array utilizing a four-phase-shifted sampled Bragg grating. By using this grating, the coupling coefficient is enhanced by approximately 2.83 time…
View article: Observing perineuronal nets like structures via coaxial scattering quantitative interference imaging at multiple wavelengths
Observing perineuronal nets like structures via coaxial scattering quantitative interference imaging at multiple wavelengths Open
Perineuronal nets (PNNs) are important functional structures on the surface of nerve cells. Observation of PNNs usually requires dyeing or fluorescent labeling. As a network structure with a micron grid and sub-wavelength thickness but no …