@inproceedings{02fe972c340042728597d30601946f93,
title = "Silicon nitride bus-coupled spiral-ring resonator for dual-mode locking temperature stabilization",
abstract = "A Si3N4 bus-coupled spiral-ring dual-mode resonator reference cavity, with high extinction ratios for both TE and TM modes, is demonstrated for temperature stabilization. The temperature is stabilized within ± 60 µK variation over 16 hours.",
author = "Qiancheng Zhao and Harrington, {Mark W.} and Andrei Isichenko and Debapam Bose and Jiawei Wang and Kaikai Liu and Behunin, {Ryan O.} and Rakich, {Peter T.} and Hoyt, {Chad W.} and Chad Fertig and Blumenthal, {Daniel J.}",
note = "Funding Information: A thermoelectric cooler (TEC) is used to create temperature perturbations to the system. With DML temperature stabilization not engaged, the VCO frequency changes with the external temperature perturbations as shown in Fig. 4(b), reflecting the variations of the cavity temperature. When temperature stabilization is engaged, the VCO frequency remains flat despite spikes at the perturbation transitions as shown in Fig. 4(d). The VCO frequency resumes from the spike peak to its original value in 20 s. In a 16-hour experiment without abrupt temperature perturbations, the VCO frequency has a standard deviation of 9.47 kHz, equivalent to a cavity temperature stability of ± 60.3 µK. The results demonstrate that the DML temperature stabilization feedback system can effectively correct the cavity temperature and keep it in a narrow variation range. The system{\textquoteright}s temperature sensitivity can be further improved by using higher Q-factor resonators to improve error signal signal-to-noise ratio and applying loop filters to reject unwanted harmonics from double sideband phase modulation. Feedforward method to correct the laser frequency [9] is currently under investigation. Acknowledgment and funding information: This work was supported by DARPA MTO APhI contract number FA9453-19-C-0030 and ARPA-E Award Number DE-AR0001042. The views, opinions and/or findings expressed are those of the author(s) and should not be interpreted as representing the official views or policies of the U.S. Government or any agency thereof. Publisher Copyright: {\textcopyright} OSA 2021, {\textcopyright} 2021 The Author(s); Optical Fiber Communication Conference, OFC 2021 ; Conference date: 06-06-2021 Through 11-06-2021",
year = "2021",
language = "English (US)",
series = "Optics InfoBase Conference Papers",
publisher = "Optica Publishing Group (formerly OSA)",
booktitle = "Optical Fiber Communication Conference, OFC 2021",
}