Self-injection locking of a multi-frequency semiconductor laser to composite resonators

Mingyuan Xue; Hao Dong; Lingxuan Zhang; Sai T. Chu; Brent Little; Weiqiang Wang

doi:10.1016/j.optlastec.2025.113067

Self-injection locking of a multi-frequency semiconductor laser to composite resonators

Mingyuan Xue, Hao Dong, Lingxuan Zhang^*, Sai T. Chu, Brent Little, Weiqiang Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

The narrow linewidth laser is a crucial component in optical applications such as precision measurement, sensing, and frequency comb generation. In this study, we analyze and demonstrate a self-injection locking laser configuration based on composite resonators consisting of a fiber ring resonator and a micro-ring resonator. By locking the laser to the high-Q composite resonator, a multi-frequency laser is effectively transformed into a single-mode emission, with the linewidth significantly reduced to 300 Hz. The impact of feedback power on the laser's spectral performance is also examined. The demonstrated laser in this work is of great significance for applications such as high precision coherent detection, coherent optical communication, and tunable narrow linewidth lasers. © 2025 Elsevier Ltd.

Original language	English
Article number	113067
Journal	Optics and Laser Technology
Volume	189
Online published	30 Apr 2025
DOIs	https://doi.org/10.1016/j.optlastec.2025.113067
Publication status	Online published - 30 Apr 2025

Funding

This research was funded by the Scientific Research Plan of Shaanxi Education Department, grant number 22JK0301; the Natural Science Basic Research Program of Shaanxi, grant number 2022JQ-634.

Research Keywords

Composite resonators
Linewidth compression
Mode selection
Narrow laser
Self-injection locking

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title = "Self-injection locking of a multi-frequency semiconductor laser to composite resonators",

abstract = "The narrow linewidth laser is a crucial component in optical applications such as precision measurement, sensing, and frequency comb generation. In this study, we analyze and demonstrate a self-injection locking laser configuration based on composite resonators consisting of a fiber ring resonator and a micro-ring resonator. By locking the laser to the high-Q composite resonator, a multi-frequency laser is effectively transformed into a single-mode emission, with the linewidth significantly reduced to 300 Hz. The impact of feedback power on the laser's spectral performance is also examined. The demonstrated laser in this work is of great significance for applications such as high precision coherent detection, coherent optical communication, and tunable narrow linewidth lasers. {\textcopyright} 2025 Elsevier Ltd.",

keywords = "Composite resonators, Linewidth compression, Mode selection, Narrow laser, Self-injection locking",

author = "Mingyuan Xue and Hao Dong and Lingxuan Zhang and Chu, {Sai T.} and Brent Little and Weiqiang Wang",

year = "2025",

month = apr,

day = "30",

doi = "10.1016/j.optlastec.2025.113067",

language = "English",

volume = "189",

journal = "Optics and Laser Technology",

issn = "0030-3992",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Self-injection locking of a multi-frequency semiconductor laser to composite resonators

AU - Xue, Mingyuan

AU - Dong, Hao

AU - Zhang, Lingxuan

AU - Chu, Sai T.

AU - Little, Brent

AU - Wang, Weiqiang

PY - 2025/4/30

Y1 - 2025/4/30

N2 - The narrow linewidth laser is a crucial component in optical applications such as precision measurement, sensing, and frequency comb generation. In this study, we analyze and demonstrate a self-injection locking laser configuration based on composite resonators consisting of a fiber ring resonator and a micro-ring resonator. By locking the laser to the high-Q composite resonator, a multi-frequency laser is effectively transformed into a single-mode emission, with the linewidth significantly reduced to 300 Hz. The impact of feedback power on the laser's spectral performance is also examined. The demonstrated laser in this work is of great significance for applications such as high precision coherent detection, coherent optical communication, and tunable narrow linewidth lasers. © 2025 Elsevier Ltd.

AB - The narrow linewidth laser is a crucial component in optical applications such as precision measurement, sensing, and frequency comb generation. In this study, we analyze and demonstrate a self-injection locking laser configuration based on composite resonators consisting of a fiber ring resonator and a micro-ring resonator. By locking the laser to the high-Q composite resonator, a multi-frequency laser is effectively transformed into a single-mode emission, with the linewidth significantly reduced to 300 Hz. The impact of feedback power on the laser's spectral performance is also examined. The demonstrated laser in this work is of great significance for applications such as high precision coherent detection, coherent optical communication, and tunable narrow linewidth lasers. © 2025 Elsevier Ltd.

KW - Composite resonators

KW - Linewidth compression

KW - Mode selection

KW - Narrow laser

KW - Self-injection locking

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105003653656&origin=recordpage

U2 - 10.1016/j.optlastec.2025.113067

DO - 10.1016/j.optlastec.2025.113067

M3 - RGC 21 - Publication in refereed journal

SN - 0030-3992

VL - 189

JO - Optics and Laser Technology

JF - Optics and Laser Technology

M1 - 113067

ER -

Self-injection locking of a multi-frequency semiconductor laser to composite resonators

Abstract

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Research Keywords

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