Broadband mid-infrared frequency combs in quasi-phase-matched lithium niobate waveguides

2018 ◽  
Author(s):  
Abijith S. Kowligy ◽  
Alexander Lind ◽  
Henry Timmers ◽  
Daniel D. Hickstein ◽  
David R. Carlson ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Mid Infrared ◽  
Frequency Combs

scholarly journals Mid-infrared quantum cascade laser frequency combs with a microstrip-like line waveguide geometry

2021 ◽  
Vol 118 (7) ◽  
pp. 071101
Author(s):  
Filippos Kapsalidis ◽  
Barbara Schneider ◽  
Matthew Singleton ◽  
Mathieu Bertrand ◽  
Emilio Gini ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Frequency ◽  
Mid Infrared ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Waveguide Geometry

scholarly journals Modelocked Mid-Infrared Frequency Combs in a Silicon Microresonator

2016 ◽  
Author(s):  
Mengjie Yu ◽  
Yoshitomo Okawachi ◽  
Austin G. Griffith ◽  
Michal Lipson ◽  
Alexander L. Gaeta
Keyword(s):  
Mid Infrared ◽  
Frequency Combs

scholarly journals Coherent mid-infrared frequency combs in silicon-microresonators in the presence of Raman effects

2016 ◽  
Vol 24 (12) ◽  
pp. 13044 ◽  
Author(s):  
Austin G. Griffith ◽  
Mengjie Yu ◽  
Yoshitomo Okawachi ◽  
Jaime Cardenas ◽  
Aseema Mohanty ◽  
...  
Keyword(s):  
Mid Infrared ◽  
Frequency Combs

Precision Mid-Infrared Frequency Comb Spectroscopy using a Cross-Dispersed Spectrometer

2021 ◽  
Author(s):  
D. Michelle Bailey ◽  
Gang Zhao ◽  
Adam J. Fleisher
Keyword(s):  
Frequency Comb ◽  
Difference Frequency Generation ◽  
Laser Frequency ◽  
Trace Gas ◽  
Molecular Fingerprint ◽  
Mid Infrared ◽  
Optical Frequency Combs ◽  
Frequency Combs ◽  
Infrared Spectral ◽  
Fingerprint Region

<p>Advances in optical technology have led to the commercialization and widespread use of broadband optical frequency combs for multiplexed measurements of trace-gas species. Increasingly available in the mid-infrared spectral region, these devices can be leveraged to interrogate the molecular fingerprint region where many fundamental rovibrational transitions occur. Here we present a cross-dispersed spectrometer employing a virtually imaged phased array etalon and ruled diffraction grating coupled with a difference frequency generation comb centered near 4.5 µm. The spectrometer achieves sub-GHz spectral resolution with a 30 cm<sup>-1</sup> instantaneous bandwidth. Laboratory results for nitrous oxide isotopic abundance retrieval will be presented. Challenges relating to characterizing the instrument lineshape function, constructing a frequency axis traceable to the comb, and accurate spectral modelling will be addressed and progress towards incorporating a more compact laser frequency comb source into the system will be discussed.</p>

Simple, Robust Mid-infrared Frequency Combs Generated From Few-cycle Near-infrared Pulses

2020 ◽  
Author(s):  
Alexander J. Lind ◽  
Abijith S. Kowligy ◽  
Henry Timmers ◽  
Flavio C. Cruz ◽  
Myles C. Silfies ◽  
...  
Keyword(s):  
Near Infrared ◽  
Mid Infrared ◽  
Frequency Combs
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