Number-Density Measurements of 
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 in Real Time with an Optical Frequency Comb for High Accuracy and Precision

Scholten, Sarah K.; Perrella, Christopher; Anstie, James; White, Richard; Al-Ashwal, Waddah A.; Hébert, Nicolas Bourbeau; Genest, Jérôme; Luiten, André

doi:10.1103/physrevapplied.9.054043

Cited by 13 publications

(3 citation statements)

References 35 publications

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“…Fiber lasers and amplifiers have become increasingly important as robust single-frequency sources with high beam quality at W-level powers and beyond. Applications for single-frequency fiber laser (SFFL) systems include coherent lidar [1,2], frequency comb stabilization [3][4][5], atom interferometry [6][7][8], gravitational wave detection [9][10][11], molecular spectroscopy [12][13][14], and cooling and trapping of ions and atoms for optical atomic clocks, quantum computing and studies of quantum physics [15][16][17][18][19]. In several of these applications, frequency tunability of the laser over multiple MHz is required for frequency-locking to an atomic transition or a high-finesse cavity, and GHz tuning is used in some molecular spectroscopy applications.…”

Section: Introductionmentioning

confidence: 99%

Theory and experiment of two-wave mixing instability in single-frequency fiber amplifiers induced by frequency modulation

Hauge,

Pedersen,

Bondu

et al. 2023

Preprint

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This paper presents a theoretical and experimental characterization of an instability phenomenon observed in single-frequency fiber amplifiers when the frequency of the seed laser is modulated. The instability manifests itself as fluctuating elastic back-reflections that occur only when the frequency is decreasing with time. The theory is a generalization of a coupled-mode model developed for a single-frequency fiber amplifier back-seeded with a constant frequency shift relative to the main signal. It can explain most observed features of the experiments in a qualitative and semi-quantitative way. Open questions and directions for further developments are discussed.

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Section: Introductionmentioning

confidence: 99%

Theory and experiment of two-wave mixing instability in single-frequency fiber amplifiers induced by frequency modulation

Hauge,

Pedersen,

Bondu

et al. 2023

Preprint

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“…The advent of the optical frequency comb (OFC) bring a revolutionary breakthrough in precision optical frequency metrology by providing a direct and simple link between optical oscillation and microwave frequencies [1], [2]. Their ability to convert between optical and microwave frequencies as well as their broad spectral bandwidth [3] and high accuracy characteristics [4] make OFCs powerful tools in the fields of low-phase-noise microwave generation [5], [6], comb-based spectroscopy [7], [8], high-precision laser detection and ranging [9], [10], and atomic clock networks [11], [12]. With the rapid growth in these applications, portable, robust, low-power-consumption, and inexpensive OFCs are increasingly necessary.…”

Section: Introductionmentioning

confidence: 99%

Compact, High-Performance All-Polarization-Maintaining Er: Fiber Frequency Comb With Single Fiber Actuator

et al. 2020

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The large volume and weak environmental adaptability of fiber optical frequency combs (OFCs) have become the main obstacles for their applications in various fields. To address these issues, in this study, we present a compact, low-cost f-to-2f interferometer and fiber actuator with a large tuning range and a high control bandwidth for a 200-MHz OFC that is based on a 1.5-m all-polarization-maintaining fiber mode-locked laser. By employing customized fiber-coupled gradient index lenses, our f-to-2f interferometer is encapsulated in a miniature tube with a diameter of only 4 mm and a length of 40 mm, which substantially reduces the optical section size of the frequency comb as compared to conventional devices. The carrier envelope offset beat with a signal-to-noise ratio of 40 dB is detected in a resolution bandwidth of 360 kHz. In addition, a laboratory-made piezoelectric transducer-driven mechanical actuator for repetition rate regulation exhibited a large tuning range of 106 kHz (corresponding to an effective temperature drift of 53 ℃) and a high control bandwidth of approximately 1 kHz. This resulted in a robust repetition rate locking with an Allan deviation of 330 Hz at a gate time of 1 s and a residual integrated timing jitter of 418 fs [3 Hz to 1 MHz] when referenced to a hydrogen maser. Along with reducing the size and improving the environmental adaptability of the OFC, our design can also decrease the power consumption of the system significantly. Our findings provide a new direction to the development of OFCs for various applications.

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“…Comb-based spatially dispersive spectrometers have the sensitivity to enable the study of reaction kinetics critical to understanding atmospheric processes, , but can be limited in terms of absolute accuracy when comb teeth are unresolved. Challenges in retrieving accurate optical frequency assignments and corresponding transmission through a gas sample are often attributed to a complex instrument function. ,− To elevate these spectrometers for use in high-resolution spectroscopy, rigorous evaluation of the instrument function along with spectral reconstruction independent of reference databases are required. Here, we present an instrument for precision spectroscopy of N 2 O using an optical frequency comb centered near 4.5 μm (2222 cm –1 ) coupled to a cross-dispersed spectrometer using a virtually imaged phased array (VIPA) and ruled diffraction grating.…”

mentioning

confidence: 99%

Precision Spectroscopy of Nitrous Oxide Isotopocules with a Cross-Dispersed Spectrometer and a Mid-Infrared Frequency Comb

2020

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same order of magnitude as f rep , the ILS may result in measurable crosstalk between imaged comb teeth, and therefore should still be thoroughly considered over the entire image. Here, we required a comb-tooth-resolved model for accurate spectral analysis of our Doppler-broadened absorption lines, even with a center-image resolution of 3.6f rep . Therefore, robust approaches for rigorous ILS analysis remain important for rapid and accurate molecular spectroscopy using optical frequency combs and 2D cross-dispersed spectrometers.

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Number-Density Measurements of CO2 in Real Time with an Optical Frequency Comb for High Accuracy and Precision

Cited by 13 publications

References 35 publications

Theory and experiment of two-wave mixing instability in single-frequency fiber amplifiers induced by frequency modulation

Theory and experiment of two-wave mixing instability in single-frequency fiber amplifiers induced by frequency modulation

Compact, High-Performance All-Polarization-Maintaining Er: Fiber Frequency Comb With Single Fiber Actuator

Precision Spectroscopy of Nitrous Oxide Isotopocules with a Cross-Dispersed Spectrometer and a Mid-Infrared Frequency Comb

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