Germanium‐Based Mid‐Infrared Integrated Photonics
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini +6 more
wiley +1 more source
Frequency-comb enabled spectrum-correlation reflectometry for distributed fiber-optic sensing. [PDF]
Lin Z +5 more
europepmc +1 more source
Single-modulator, direct frequency comb spectroscopy via serrodyne modulation. [PDF]
Long DA +7 more
europepmc +1 more source
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng +7 more
wiley +1 more source
Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration. [PDF]
Hyun M +10 more
europepmc +1 more source
Integrated optical frequency comb for 5G NR Xhauls. [PDF]
Lima ES +5 more
europepmc +1 more source
Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang +3 more
wiley +1 more source
CO<sub>2</sub> Isotopologue Quantification Using Direct Frequency Comb Spectroscopy and Machine Learning. [PDF]
Cochrane M +7 more
europepmc +1 more source
Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás +5 more
wiley +1 more source
Dual optical frequency comb using a multi-functional PIC based on fully integrated injection locked gain-switched lasers. [PDF]
Rosado A +4 more
europepmc +1 more source

