Comb tooth resolved MIR spectroscopy using a VECSEL frequency comb and a virtually-imaged phased array spectrometer

2020 ◽  
Author(s):  
Robert Rockmore ◽  
Ricky Gibson ◽  
R. Jason Jones ◽  
Jerome V. Moloney
Keyword(s):  
Phased Array ◽  
Frequency Comb ◽  
Mir Spectroscopy ◽  
Comb Tooth

Self-referenced, accurate and sensitive optical frequency comb spectroscopy with a virtually imaged phased array spectrometer

2016 ◽  
Vol 41 (5) ◽  
pp. 974 ◽  
Author(s):  
Grzegorz Kowzan ◽  
Kevin F. Lee ◽  
Magdalena Paradowska ◽  
Mateusz Borkowski ◽  
Piotr Ablewski ◽  
...  
Keyword(s):  
Phased Array ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency

scholarly journals Photonic microwave and RF programmable true time delays for phased array antennas using a soliton crystal Kerr micro-comb source

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
Time Delays ◽  
Phased Array ◽  
Frequency Comb ◽  
Free Spectral Range ◽  
Beam Steering ◽  
High Angular Resolution ◽  
Phased Array Antenna ◽  
Tunable Range ◽  
Large Channel ◽  
True Time

Abstract We demonstrate significantly improved performance of a microwave true time delay line based on an integrated optical frequency comb source. The broadband micro-comb (over 100 nm wide) features a record low free spectral range of 49GHz, resulting in an unprecedented record high channel number (81 over the C band) – the highest number of channels for an integrated comb source used for microwave signal processing. We theoretically analyze the performance of a phased array antenna and show that this large channel count results in a high angular resolution and wide beam steering tunable range. This demonstrates the feasibility of our approach as a competitive solution towards implementing integrated photonic true time delays in radar and communications systems.

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