Bayesian Optimized Design for O-Band Bottom-Up Grown Microring Lasers

Mihir R. Athavale; Ruqaiya Al-Abri; Stephen Church; Wei Wen Wong; Andre K.Y. Low; Hark Hoe Tan; Kedar Hippalgaonkar; Patrick  Parkinson

doi:10.1021/acsphotonics.5c00520

Bayesian Optimized Design for O-Band Bottom-Up Grown Microring Lasers

Mihir R. Athavale, Ruqaiya Al-Abri, Stephen Church, Wei Wen Wong, Andre K.Y. Low, Hark Hoe Tan, Kedar Hippalgaonkar, Patrick Parkinson^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

On-chip coherent laser sources are crucial for enabling photonic integrated circuits, yet progress has been hindered by the complex interplay between material quality, device geometry, and performance metrics. We combine high-throughput characterization, statistical analysis, experimental design, and multiobjective Bayesian optimization to accelerate the design process for low-threshold, high-yield III–V microring lasers with room-temperature operation at communication wavelengths. We demonstrate a 1.6 × reduction in threshold over expert-designed configurations, achieving a 100% lasing yield in optimized fields, over 250 rings that emit within the O-band, and a field-median threshold as low as 33 μJ cm^–2 pulse^–1.

Original language	English
Number of pages	9
Journal	ACS Photonics
Volume	12
Issue number	8
DOIs	https://doi.org/10.1021/acsphotonics.5c00520
Publication status	E-pub ahead of print - 9 Jul 2025

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title = "Bayesian Optimized Design for O-Band Bottom-Up Grown Microring Lasers",

abstract = "On-chip coherent laser sources are crucial for enabling photonic integrated circuits, yet progress has been hindered by the complex interplay between material quality, device geometry, and performance metrics. We combine high-throughput characterization, statistical analysis, experimental design, and multiobjective Bayesian optimization to accelerate the design process for low-threshold, high-yield III–V microring lasers with room-temperature operation at communication wavelengths. We demonstrate a 1.6 × reduction in threshold over expert-designed configurations, achieving a 100\% lasing yield in optimized fields, over 250 rings that emit within the O-band, and a field-median threshold as low as 33 μJ cm–2 pulse–1. ",

keywords = "Integrated Photonics, Microring Lasers, High-Throughput Characterization, Multiobjective Bayesian Optimization, Design of Experiments, Epitaxy, Lasers, Mathematical Methods, Optimization, Quantum Mechanics",

author = "Athavale, \{Mihir R.\} and Ruqaiya Al-Abri and Stephen Church and Wong, \{Wei Wen\} and Low, \{Andre K.Y.\} and Tan, \{Hark Hoe\} and Kedar Hippalgaonkar and Patrick Parkinson",

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doi = "10.1021/acsphotonics.5c00520",

language = "English",

volume = "12",

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issn = "2330-4022",

publisher = "American Chemical Society",

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T1 - Bayesian Optimized Design for O-Band Bottom-Up Grown Microring Lasers

AU - Athavale, Mihir R.

AU - Al-Abri, Ruqaiya

AU - Church, Stephen

AU - Wong, Wei Wen

AU - Low, Andre K.Y.

AU - Tan, Hark Hoe

AU - Hippalgaonkar, Kedar

AU - Parkinson, Patrick

PY - 2025/7/9

Y1 - 2025/7/9

N2 - On-chip coherent laser sources are crucial for enabling photonic integrated circuits, yet progress has been hindered by the complex interplay between material quality, device geometry, and performance metrics. We combine high-throughput characterization, statistical analysis, experimental design, and multiobjective Bayesian optimization to accelerate the design process for low-threshold, high-yield III–V microring lasers with room-temperature operation at communication wavelengths. We demonstrate a 1.6 × reduction in threshold over expert-designed configurations, achieving a 100% lasing yield in optimized fields, over 250 rings that emit within the O-band, and a field-median threshold as low as 33 μJ cm–2 pulse–1.

AB - On-chip coherent laser sources are crucial for enabling photonic integrated circuits, yet progress has been hindered by the complex interplay between material quality, device geometry, and performance metrics. We combine high-throughput characterization, statistical analysis, experimental design, and multiobjective Bayesian optimization to accelerate the design process for low-threshold, high-yield III–V microring lasers with room-temperature operation at communication wavelengths. We demonstrate a 1.6 × reduction in threshold over expert-designed configurations, achieving a 100% lasing yield in optimized fields, over 250 rings that emit within the O-band, and a field-median threshold as low as 33 μJ cm–2 pulse–1.

KW - Integrated Photonics

KW - Microring Lasers

KW - High-Throughput Characterization

KW - Multiobjective Bayesian Optimization

KW - Design of Experiments

KW - Epitaxy

KW - Lasers

KW - Mathematical Methods

KW - Optimization

KW - Quantum Mechanics

UR - https://www.scopus.com/pages/publications/105010251527

U2 - 10.1021/acsphotonics.5c00520

DO - 10.1021/acsphotonics.5c00520

M3 - Article

SN - 2330-4022

VL - 12

JO - ACS Photonics

JF - ACS Photonics

IS - 8

ER -

Bayesian Optimized Design for O-Band Bottom-Up Grown Microring Lasers

Abstract

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