Journal Article

PUBDB-2024-05453

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Phase-stabilised self-injection-locked microcomb

Wildi, T.CFEL*DESY* ; Ulanov, A.CFEL*DESY* ; Voumard, T.CFEL*Extern*DESY* ; Ruhnke, B.CFEL*Extern*DESY* ; Herr, T. (Corresponding author)CFEL*DESY*

2024
Nature Publishing Group UK [London]

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Please use a persistent id in citations: doi:10.1038/s41467-024-50842-8

Abstract: Microresonator frequency combs (microcombs) hold potential for precision metrology in a compact form factor impacting applications such as point-of-care diagnostics, environmental monitoring, time-keeping, navigation and astronomy. Through the principle of self-injection locking, electrically-driven chip-based microcombs with low complexity are now possible. However, phase-stabilisation of such self-injection-locked microcombs, a prerequisite for metrological frequency combs, has yet to be attained. Here, addressing this critical need, we demonstrate full phase-stabilisation of a self-injection-locked microcomb. The microresonator is implemented in a silicon nitride photonic chip, and by controlling a pump laser diode and a microheater with low voltage signals (sub 1.5 V), we achieve independent actuation of the comb's offset and line spacing frequencies. Both actuators reach a bandwidth of over 100 kHz and permit phase-locking of the microcomb to external frequency references. These results establish photonic chip-based, self-injection-locked microcombs as a low-complexity, yet versatile source for coherent precision metrology in emerging applications.

Note: Please correct the following mistakes in record: https://bib-pubdb1.desy.de/record/601438 Record type preprint instead of journal article.Best regards, Alexander Ulanov (geändert 30.1.24 T.F.)

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Contributing Institute(s):

1. FS-CFEL-2-UMP (FS-CFEL-2-UMP)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. STARCHIP - Microphotonics-based frequency combs for habitable exoplanet detection (853564) (853564)
3. VH-NG-1404 - Ultra-fast nonlinear microphotonics (G:(DE-HGF)2019_VH-NG-1404) (G:(DE-HGF)2019_VH-NG-1404)
4. FEMTOCHIP - FEMTOSECOND LASER ON A CHIP (965124) (965124)

Experiment(s):

1. Experiments at CFEL

Appears in the scientific report 2024

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Wildi, T.CFEL*DESY* ; Ulanov, A.CFEL*DESY* ; Voumard, T.CFEL*DESY* ; Ruhnke, B.Extern* ; Herr, T. (Corresponding author)CFEL*DESY*
Phase-stabilised self-injection-locked microcomb
[10.3204/PUBDB-2024-00192]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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