The 25th European Conference on Integrated Optics: Proceedings of ECIO 2024, June 17–19, Aachen, Germany (Springer Proceedings in Physics, 402)

Introduction to the Proceedings of ECIO 2024
Organization
Contents
Lasers and Amplifiers
Widely Tunable External Cavity Laser Across the 1634-1777 nm Spectrum with Sub-kHz Linewidth
	1 Introduction
	2 Design and Simulation
	3 Experimental Characterization
	4 Conclusion
	References
External Cavity 637-nm Laser with Increased RSOA-to-PIC Alignment Tolerance and a Filtered Sagnac-Loop Reflector with Single Output Waveguide
	1 Introduction
	2 Design
		2.1 Silicon Nitride Platform
		2.2 Components
	3 Experimental Results
	4 Conclusions
	References
Widely Tunable GaSb/Si3N4 Vernier Hybrid Laser Emitting Around 2.55 µm
	1 Introduction
	2 Measurements
	References
Pound-Drever-Hall Laser Frequency Stabilization of Tunable 1.55 µm Monolithically Integrated Semiconductor Lasers Using an Integrated Phase Modulator
	1 Introduction
		1.1 The Pound-Drever-Hall Stabilization System
	2 Laser Frequency Stabilization Results
		2.1 PDH Stabilization Using Integrated Laser and Integrated EOPM
		2.2 PDH Stabilization Using Integrated Laser and EOPM Internal to Lasing Cavity
	3 Comparison Between Methods of PDH Stabilization
	4 Conclusion
	References
High Power 1.8 W Tunable Laser Based on CMOS Compatible Power Amplifier
	1 Introduction
	2 Results
	References
Micro-Transfer-Printed O-Band GaAs QD-On-Si Widely Tunable Laser
	1 Introduction
	2 Micro-transfer Printing
	3 Design and Fabrication of the Tunable Laser
	4 Characterization
	5 Conclusion
	References
Widely Tunable Laser on IMOS Platform
	1 Introduction
	2 Design
	3 Experimental Setup and Search Algorithm
	4 Results and Discussion
	5 Conclusions
	References
Ultrafast Tunable Photonic Integrated E-DBR Pockels Laser
	1 Introduction
	2 Measurements and Results
	References
External Net Gain in Monolithically Integrated Si3N4-Al2O3:Er3+ Spiral Waveguide Amplifiers
	1 Introduction
	2 Experimental Details
	References
Optoelectronic Devices
III-V Electro-Absorption Modulation and Detection Devices Integrated to 220 nm Silicon-on-Insulator
	1 Introduction
	2 Device Design and Fabrication
	3 Device Characteristics
	4 Conclusion
	References
Ge-fin Photodiodes with 3-dB Bandwidths Well Beyond 110 GHz for O-Band Receiver Subsystems
	1 Introduction
	2 Measurement Results and Discussion
	3 Conclusion
	References
Integrated-SiGe Waveguide Photodetector in the 5.2–10 µm Wavelength Range Operating at Room Temperature
	1 Introduction
	2 Design and Experimental Results
		2.1 Design
		2.2 Experimental Results
	3 Conclusion
	References
Assembly and Test
Repeatability of Automated Edge Coupling for Wafer Level Testing
	1 Introduction
	2 System Overview
		2.1 Probe Station Environment
		2.2 Optical Probe
	3 Automated Wafer-Level Testing with Edge Coupling
		3.1 Device Under the Test
		3.2 Experimental Results
	4 Conclusions
	References
Demonstration of Micro-transfer Printing Thick Optical Components on Glass and Silicon Wafers
	1 Introduction
	2 Fabrication of Coupons and Printing Process
	3 Results and Discussion
	References
Thin-Film Lithium Niobate
Standardized TFLN Photonic Integrated Circuits Platform
	1 Introduction
	2 TFLN PIC Platform Technology Nodes
	3 Outlook and Conclusion
	References
Compact Silicon-Rich SiN/LiNbO3 Mach Zehnder and Microring Modulators
	1 Introduction
	2 Design and Fabrication
	3 Experimental Results
	4 Conclusion
	References
Foundry Fabricated Thin-Film Lithium Niobate Electro-Optic Modulators for Blue Light
	1 Introduction
	2 Design and Characterization
	3 Results
	4 Conclusion
	References
Polymer Photonics
Efficient Modelling of 3D-Printed Freeform Waveguides by a Dedicated Beam-Propagation Method (BPM) Based on Transformation Optics
	1 Introduction
	2 Methods
	3 Results and Discussions
	4 Conclusions
	References
Wavelength Tunable, Polymer-Based Arrayed Waveguide Gratings for Hybrid Integration
	1 Introduction
	2 Simulation and Design
		2.1 Arrayed Waveguide Grating
		2.2 Tunability
	3 Characterization and Assembly
		3.1 Design of MUX/DEMUX-PICs
		3.2 Characterization and Assembly
	4 Summary and Conclusion
	References
Nonlinear Photonics
Observation of Fundamental Charge Noise in Electro-Optic Photonic Integrated Circuits
	1 Introduction
	2 Fundamental Charge Refractive Noise via Pockels Effect
	3 Charge Noise Limited Integrated Self-injection-locked Lasers
	4 Discussion and Conclusion
	References
An Integrated Gallium Phosphide Optical Parametric Amplifier
	1 Continuous-Wave Parametric Amplification
	2 Gallium Phosphide Spiral Waveguide
	3 Optical Parametric Gain Measurements
	4 Conclusion
	References
Lithium Tantalate Photonic Integrated Circuits
	1 Introduction
	2 Results
	3 Discussion
	References
Voltage-Controllable Second-Order Susceptibility in Arsenic Sulfide Film
	1 Introduction
	2 Sample Preparation
	3 Free-Space Measurements
		3.1 EFISH Measurements
		3.2 Bulk-SHG Measurements and (2)-Determination
		3.3 Evaluation of EFISH Results
	4 Conclusion
	References
Second Harmonic Generation and (2) Cascading in Periodically Poled MgO:LiNbO3 Photonic Wires
	References
Fiber Communication Systems
Sustainable Pbps Co-packaged Optics Using Passively Assembled, Flip-Chip Evanescent Couplers
	1 Introduction
	2 Device Fabrication, Die Packaging, and Testing
	3 Results
	4 Discussion and Conclusion
	References
Visible Photonics and Sensing
Visible-Light Optical Phased Arrays with a Convex Grating Emitter on Implantable Neural Probes for Spatially Targeted Deep Brain Optogenetics
	1 Introduction
	2 Neural Probe Design and Fabrication
	3 Characterization
	4 Conclusion
	References
Focusing Optical Phased Array for Optically Enabled Probing of the Retina with Subcellular Resolution
	1 Introduction
	2 Focusing One-Dimensional Optical Phased Array
		2.1 Design
		2.2 Simulation
		2.3 Measurement and Optical Characterization
	3 Thermo-Optical Phase Shifter for Beam Steering
	4 Conclusion
	References
Beyond the Free Spectral Range: On-Chip Spectrometer with Multi-color Cascaded Colloidal Quantum-Dot Photodiodes
	1 Introduction
	2 Principle
	3 Experimental Results
	4 Conclusion
	References
Characterization of Grating Out-Couplers in the Ultraviolet-C Wavelength Range for On-Chip Spectroscopy
	1 Introduction
	2 Result
	3 Conclusion
	References
Microwave Photonics
Simultaneous Notch Filtering and True Time Delay RF Photonic Front-End
	1 Introduction
	2 Chip Structure and Working Principle
	3 Experimental Results
	4 Conclusion
	References
Large-Scale Photonic Chip Based Pulse Interleaver for Low-Noise Microwave Generation
	1 Introduction
	2 Device Design, Fabrication and Pulse Interleaving Demonstration
	3 Summary
	References
Agile Spectral Multiplication of Narrow-Band Comb using Integrated InP Multi-wavelength Laser
	1 Introduction
	2 Device Structure and Characterization
	3 THz-Range Spectral Multiplication and Phase Locking of Narrow-Band EO-Comb
	4 Conclusion
	References
Microwave-Optical Transduction Using High-Overtone Bulk Acoustic Resonators on Silicon Nitride Photonics
	1 Introduction
	2 Design and Fabrication
	3 Results
	References
Phonon-Photon Interaction in Integrated Photonics
Brillouin-Active Subwavelength Silicon Membrane Waveguides
	1 Introduction
	2 Design and Simulation
	3 Experimental Results
	4 Conclusions
	References
Quantum Technologies
High-Visibility Interference for Time Bin Encoded Entanglement on Silicon Integrated Platform
	1 Introduction
	2 System Design
	3 Experiment Result
	4 Conclusion
	References
Industrial Ion Trap Chips with Integrated Optics
	1 Introduction
	2 Industrial Microfabrication of Ion Trap Chips
	3 Optics Integration
		3.1 Femtosecond Laser Written Waveguides in Borosilicate Glass
		3.2 Thin Film Waveguides and Grating Couplers
	4 Testing of Industrial Ion Traps with Integrated Optics
	5 Outlook
	References
Photonic Platform for Industrially Microfabricated Ion Traps
	1 Introduction
	2 Material and Fabrication Development
		2.1 Thin Films
		2.2 Structuring and Losses
	3 Discussion and Outlook
	References
Programmable Photonics
Programmable Integrated Photonics with Phase-Change Materials
	1 PCM Cells Embedded on Cladding
	2 Monolithic PCM Integrated Photonics
	3 Inverse-Design in Cladding-Embedded PCM Films
	4 Direct-Laser-Written Waveguides in PCM Films
	5 Combining Plasmonics with PCM-Based Integrated Photonics
	References
Sb2Se3 Based Non-volatile Memory for Photonic Matrix-Vector Multiplications
	1 Introduction
	2 Device Fabrication
	3 Results
		3.1 Input Encoding
		3.2 Switching Characterization
		3.3 Measurements and Data Analysis
	4 Conclusion
	References
Reconfigurable Silicon Polarization Rotator in the O-Band Using Sb2Se3 on the Silicon-on-Insulator Platform
	1 Introduction
	2 Results
	3 Discussion
	References
A Photonic Convolution Processor Based on Matched Pair of Arrayed Waveguide Gratings
	1 Introduction
	2 Device Design
	3 Experimental Results and Discussion
	4 Conclusion
	References
Two Modes Unscrambling Using a Single Micro-Ring Resonator
	1 Introduction
	2 Simulation Results
	3 Device Fabrication and Experimental Setup
	4 Experimental Results
	5 Conclusion
	References
Photo-Thermal Plasmonic Sensors for Transparent Detection and Control of Integrated Photonic Devices
	1 Introduction
	2 Photo-Thermal Plasmonic Sensor
		2.1 Working Principle
		2.2 Electro-Optical Characterization
	3 Closed-Loop Control of Micro Ring Resonators
		3.1 Control Strategy
		3.2 Control Experiment
	4 Conclusions
	References
Hybrid SiN– Al(Ga)N Optical Phase Shifter at 1550 nm
	1 Introduction
	2 Epitaxial Growth
	3 Design and Fabrication of SiN Waveguide and Hybrid Modulator
	4 Experimental Results
	5 Conclusion
	References
Optical MEMS
Monolithically Integrated Visible-Light MEMS Switch
	1 Introduction
	2 Design, Fabrication, and Characterization
	3 Experimental Results
	4 Conclusion
	References
Photonic Integrated Piezo-MEMS (Pip-MEMS) Device for 1D Beam Scanning
	1 Introduction
	2 Design and Fabrication
	3 Measurement Results
	4 Conclusion
	References
Nanomechanical Phase Shifting on a Gallium Arsenide Platform
	1 Introduction
	2 Fabrication and Experiment
	3 Discussion and Conclusion
	References
Photonic Integrated Circuits for Free-Space Communications and Sensing
Cutting-Edge Integrated Photonics in Space
	1 Introduction
	2 Space Optical Communication and Earth Monitoring Photonic Technologies
	3 Space Exploration Photonic Technologies
	4 Conclusions
	References
Automatic Real-Time Configuration of a 15-Channel Free-Space Optical Receiver with a Fully Integrated CMOS Controller
	1 Introduction
	2 Architecture of the System
		2.1 Free-Space Receiver
		2.2 Electronic Controller Architecture
	3 Experimental Results
		3.1 Automatic Reconfiguration of the Receiver
		3.2 Atmospheric Turbulence Phase-Compensation
	4 Conclusions
	References
Integrated Mode-Selective Repeater for Free-Space Optical Communications
	1 Introduction
	2 Reconfigurable Free-Space Beam Coupler and Regenerator Chip
	3 Experimental Setup and Control Electronics
	4 Results
	References
Silicon Nitride Metalenses at Near-Infrared Wavelengths Manufactured Using Deep-Ultraviolet Scanner Lithography
	1 Introduction
	2 Design
	3 Fabrication
	4 Performance
	5 Conclusion
	References
Chirped Bragg Gratings for On-Chip Pulse Compression in the Mid-Infrared Wavelength Range
	1 Introduction
	2 Results
		2.1 Design
		2.2 Simulations
		2.3 Fabrication and Characterization
	3 Conclusion
	References
Monday Poster Session
CMOS Electronic Circuits in Standard Silicon Photonics
	1 Introduction
	2 Electronic Integration in Standard Silicon Photonics
		2.1 CMOS Transistors
		2.2 On-Chip Multiplexers for Sequential Control of Photonic Circuits
		2.3 Transimpedance Amplifier for On-Chip Optical Power Monitoring
	3 Conclusions
	References
Comparison of Thermo-Optic Phase Shifters in Imec’s Silicon Photonics Platform
	1 Introduction
	2 Design and Measurement Method
		2.1 Different Designs of Phase Shifters
		2.2 Measurement Methods
	3 Experimental Results
		3.1 Doped-Silicon Side Heaters
		3.2 Diode-Loaded Heaters
		3.3 Doped Waveguides
		3.4 Metal Top Heaters
	4 Conclusion
	References
Optomechanical Crystal Cavities for Mechanically-Enabled All-Optical Upconversion of 3GPP 5G NR Signals
	1 Introduction
	2 Silicon OMCC Design for Comb Generation
	3 Experimental Evaluation of All-Optical OMCC Upconversion with 3GPP 5G NR Signals
	4 Conclusion
	References
Generating Photon Pairs in a Hybrid Si-BTO Platform
	1 Introduction
	2 Device Characterization
	3 Device Performance
	4 Summary
	References
Investigating the Spectral Response of a Taiji-CROW Device
	1 Introduction
	2 Design and Theoretical Model
	3 Experimental Results
	4 Conclusion
	References
Multimodal Semi-analytical Model for Bound States in the Continuum and Unidirectional Guided Resonances in a Photonic Crystal
	1 Introduction
	2 Method and Structure
	3 Q-factor and Results
	4 Extension to 3D
	References
An Efficient Singlet-Triplet Spin Qubit to Fiber Interface Assisted by a Photonic Crystal Cavity
	1 Introduction
	2 Modeling of the Optical Interface
	3 Simulation Results
	4 Conclusion
	References
Photonic Integrated Filter in Silicon Nitride Technology for High-Performance Microwave Photonics Applications
	1 Introduction
	2 Filter Architecture and Implementation
	3 Experimental Results
	4 Conclusions
	References
Pulse Driving of Thermo-Optic Phase Shifters on an InP Membrane
	1 Introduction
	2 Experimental Method and Result
	3 Conclusion
	References
Design of Silicon-Based Quantum Squeezer
	1 Introduction
	2 Device Optimization
	3 Squeezing Level
	4 Effect of Nonlinear Losses
	5 Conclusion
	References
All Dielectric Integrable Optical Isolators
	1 Introduction
	2 Dielectric Isolator Design
		2.1 Modal Analysis
		2.2 Coupled Mode Theory (CMT)
	3 All Dielectric Isolator
	4 Conclusion
	References
Waveguide Undercut in High-Confinement Silicon Nitride Platform for Enhanced Phase-Shifters Performance
	1 Introduction
	2 Implementation and Performance
	3 Conclusion and Outlook
	References
Tuesday Poster Session
An Ultra-Small InP Microdisk Laser Diode for Programmable Non-linear Activation Functions in Neuromorphic Photonics
	1 Introduction
	2 Microdisk Laser Diode Fabrication and Characterization
	3 Microdisk Laser as an All-Optical Activation Function: Experimental Setup and Results
	References
Waveguide Spectral Lens and Solar Spectrum Measurement in the Visible-Near-Infrared Region
	1 Introduction
	2 Design and Fabrication
	3 Experimental Results
	4 Conclusion
	References
Fast Prototyping of Facet-Attached Microlenses Using 2PP Printing
	1 Introduction
	2 Setup
		2.1 Lens Design
		2.2 2PP Printing of Microlenses on Waveguide Facets
		2.3 Edge Coupling Stage
	3 Results
	4 Summary and Discussion
	References
Control of Programmable Optical Processors by Using a Neural-Network Digital Twin
	1 Introduction
	2 Neural-Network-Based Digital Twin of a Programmable Optical Processor
	3 Numerical Results
	4 Conclusions
	References
Combining Photonic Integrated Circuits and Detectors with Absolute Responsivity as an Absolute Power Source
	1 Introduction
	2 Experimental Setup
	3 Results and Discussion
		3.1 Characterization of Ratio
		3.2 Prediction of Output
		3.3 Uncertainty Evaluation
	4 Conclusion
	References
Thermo-optical Robustness of Crystalline Sb2Se3/Si Waveguides at 1310 nm
	1 Introduction
	2 Results
	3 Conclusions
	References
Towards Large-Language Model Assisted Layout of Silicon Photonic Integrated Circuits
	1 Introduction
	2 Software Overview
	3 Characterization
	4 Conclusion
	References
Functional Programable Waveguide Engine and Arbitrary Beam Splitter
	1 Introduction
	2 FPWE System
	3 Device Structure and Fabrication
	4 Experiment Results
	5 Discussion
	References
Design of Microrings with Complex Waveguide Cross-Sections to Reduce Non-linear Effects of Silicon
	1 Introduction
	2 Model
	3 Results
	4 Conclusions
	References
Si3N4 Microring-Resonator-Based Integrated Photonic Sensor for Enhanced Label-Free Biofluid Analysis in the 850 nm Optical Band
	1 Introduction
	2 Design and Fabrication
	3 Evaluation and Results
		3.1 Optical Characterization
		3.2 On-chip Photodiode Integration
	4 Conclusion
	References
Computer-Generated MMI-Type Visible Multi-wavelength Combiner with Monitor Branch Using Zr-Doped PLC
	1 Introduction
	2 Design and Experimental Results
	3 Conclusion
	References
All-Optical XOR Gate Based on a Saturable Cavity
	1 Introduction
	2 Methods and Results
	3 Conclusion
	References
Reconfigurable Photonic Integrated Circuit for All-Optical Matrix Inversion
	1 Introduction
	2 Programmable Optical Processors for Recursive Problems
	3 Experimental Results
	4 Conclusions
	References
First Polymer-Based Passive Optical Waveguide for the Visible Range from 633 nm Down to 488 nm
	1 Introduction
	2 Acrylate-Type Polymer Waveguide in VIS Range
	3 Ormocer® Based Polymer Waveguide: UV Nanoimprint Lithography (UV-NIL) and First Result
	4 Conclusion
	References
Wednesday Poster Session
On-Chip Calibration of an Optical Phased Array Through Chip Facet Reflections
	1 Introduction
	2 On-Chip Calibration Method
		2.1 Optical Phased Array Design
		2.2 On-Chip Reflections
		2.3 Validation of the On-Chip Calibration Concept
	3 Conclusions
	References
Polymer-Ge Hybrid Waveguide for Flexible Photonic Integration
	1 Introduction
	2 Polymer-Embedded Ge Nanostrip Waveguide
	3 Ge-Loaded Hybrid Waveguide
	4 Picosecond Mode-Locked Laser Integration
	5 Discussion
	References
Analyzing Frequency Combs in Multi-section Hybrid Silicon Quantum Dot Laser Using Hanbury Brown-Twiss Measurements
	1 Introduction
	2 Quantum Dot Laser Structure
	3 Results and Discussion
	4 Conclusion
	References
Development of PECVD SiN Thin Films for Integrated Photonic Applications on 300 mm Wafers
	1 Introduction
	2 Engineering Approach
	3 Results
	4 Outlook
	References
Discretely Tunable GaSb/Si3N4 Hybrid Laser Emitting at 2594, 2629, and 2670 nm
	1 Introduction
	2 Measurements
	References
Low-Loss, Buried InGaAs/InP Integrated Waveguides Operating in a Wide Mid-Infrared Range
	1 Introduction
	2 Results
		2.1 Fabrication
		2.2 Experimental Results
	3 Conclusion
	References
Study of a SiN Microresonator with a Variable Coupler at 1550 nm
	1 Introduction
	2 Design and Simulation
	3 Characterization
	4 Conclusion
	References
Electro-Optic Modulator in Thin-Film Lithium Niobate Foundry Process
	1 Introduction
	2 Design and Fabrication
	3 Experiment and Discussion
	4 Conclusion
	References
Monolithically Integrated Active/Passive GaAs Laser Platform Including High-Q Ring Resonators
	1 Introduction
	2 Ring Resonator Design and Fabrication
	3 Ring Resonator Characterization
	4 Conclusion
	References
Integrated Photonic In-Plane Beam Converter for Bessel-Gaussian Beam Generation
	1 Introduction
	2 Designs and Results
	3 Summary
	References
Additive Manufacturing of Strip-Loaded Thin-Film Lithium Niobate Waveguides by Means of Two-Photon Polymerization
	1 Introduction
	2 Simulations of 2PP Strip-Loaded LNOI Waveguides
	3 Fabrication of 2PP Strip-Loaded LNOI Waveguides
	4 Experimental Results
	5 Summary
	References
Integrated GeSn Heterojunction Phototransistor on Si
	1 Introduction
	2 Device Fabrication
	3 Results
	4 Conclusion
	References
Self-aligned Fibre-to-Chip Edge Coupling Structure with Suspended Taper
	1 Introduction
	2 Design and Fabrication
	3 Results
	4 Conclusions
	References
Silicon Photonic Wafer-Scale Yield of Single Mode Resonator with Broadband DBR Mirrors
	1 Introduction
	2 Device Architecture and Design Parameters
	3 Characterization Results
	4 Yield Analysis
	5 Conclusion
	References
Silicon Nitride C-Band Grating Coupler with Reduced Waveguide Back-Reflection Using Adaptively Corrected Elliptical Grates
	1 Introduction
	2 Grating Coupler Design
	3 Measurement Results
	4 Conclusion
	References
Spot Size Converters for Enhanced Coupling Efficiency Between Single Mode Fibers and High-Confinement Si3N4 Waveguides
	1 Introduction
	2 Design and Fabrication
	3 Evaluation and Results
	4 Conclusion and Outlook
	References
Highly Flexible Dielectric Platform for Post-CMOS Photonics
	1 Introduction
	2 Technology
	3 Fabrication and Experimental Characterization
	4 Summary and Outlook
	References
Author Index