scholarly journals Simple single-section diode frequency combs

APL Photonics ◽  
2020 ◽  
Vol 5 (12) ◽  
pp. 121303
Author(s):  
Matthew W. Day ◽  
Mark Dong ◽  
Bradley C. Smith ◽  
Rachel C. Owen ◽  
Grace C. Kerber ◽  
...  
Keyword(s):  
Frequency Combs ◽  
Single Section

Amplitude and Phase Noise of Frequency Combs Generated by Single-Section InAs/InP Quantum-Dash-Based Passively and Actively Mode-Locked Lasers

2016 ◽  
Vol 52 (11) ◽  
pp. 1-7 ◽  
Author(s):  
Vivek Panapakkam ◽  
Aravind P. Anthur ◽  
Vidak Vujicic ◽  
Rui Zhou ◽  
Quentin Gaimard ◽  
...  
Keyword(s):  
Phase Noise ◽  
Frequency Combs ◽  
Single Section ◽  
Quantum Dash ◽  
Mode Locked Lasers

scholarly journals Coherent suppression of backscattering in optical microresonators

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Andreas Ø. Svela ◽  
Jonathan M. Silver ◽  
Leonardo Del Bino ◽  
Shuangyou Zhang ◽  
Michael T. M. Woodley ◽  
...  
Keyword(s):  
Quality Factor ◽  
Bulk Material ◽  
Near Field ◽  
High Quality Factor ◽  
Dual Frequency ◽  
High Quality ◽  
Frequency Combs ◽  
Optical Microresonators ◽  
Whispering Gallery ◽  
The Stability

AbstractAs light propagates along a waveguide, a fraction of the field can be reflected by Rayleigh scatterers. In high-quality-factor whispering-gallery-mode microresonators, this intrinsic backscattering is primarily caused by either surface or bulk material imperfections. For several types of microresonator-based experiments and applications, minimal backscattering in the cavity is of critical importance, and thus, the ability to suppress backscattering is essential. We demonstrate that the introduction of an additional scatterer into the near field of a high-quality-factor microresonator can coherently suppress the amount of backscattering in the microresonator by more than 30 dB. The method relies on controlling the scatterer position such that the intrinsic and scatterer-induced backpropagating fields destructively interfere. This technique is useful in microresonator applications where backscattering is currently limiting the performance of devices, such as ring-laser gyroscopes and dual frequency combs, which both suffer from injection locking. Moreover, these findings are of interest for integrated photonic circuits in which back reflections could negatively impact the stability of laser sources or other components.

High-bandwidth readout of optomechanical cavity sensors with electro-optic frequency combs

2020 ◽  
Author(s):  
Benjamin J. Reschovsky ◽  
David. A. Long ◽  
Yiliang Bao ◽  
Feng Zhou ◽  
Richard A. Allen ◽  
...  
Keyword(s):  
Frequency Combs ◽  
Electro Optic ◽  
High Bandwidth ◽  
Optomechanical Cavity

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 Terahertz Frequency Combs: Chip‐Scale Terahertz Frequency Combs through Integrated Intersubband Polariton Bleaching (Laser Photonics Rev. 15(6)/2021)

2021 ◽  
Vol 15 (6) ◽  
pp. 2170035
Author(s):  
Francesco P. Mezzapesa ◽  
Leonardo Viti ◽  
Lianhe Li ◽  
Valentino Pistore ◽  
Sukhdeep Dhillon ◽  
...  
Keyword(s):  
Terahertz Frequency ◽  
Frequency Combs

scholarly journals Tunable and compact dispersion compensation of broadband THz quantum cascade laser frequency combs

2019 ◽  
Vol 27 (15) ◽  
pp. 20231 ◽  
Author(s):  
Francesco P. Mezzapesa ◽  
Valentino Pistore ◽  
Katia Garrasi ◽  
Lianhe Li ◽  
A. Giles Davies ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Dispersion Compensation ◽  
Laser Frequency ◽  
Frequency Combs ◽  
Quantum Cascade

scholarly journals Spectral Broadening in a Continuously Pumped Singly Resonant Second-Harmonic Cavity

2021 ◽  
Vol 11 (15) ◽  
pp. 7122
Author(s):  
Simona Mosca ◽  
Tobias Hansson ◽  
Maria Parisi
Keyword(s):  
Continuous Wave ◽  
Frequency Comb ◽  
Second Harmonic ◽  
Input Power ◽  
Second Order ◽  
Optical Frequency ◽  
Frequency Combs ◽  
Research Areas ◽  
Mixed Regime ◽  
Wide Range

Optical frequency comb synthesizers with a wide spectral range are an essential tool for many research areas such as spectroscopy, precision metrology, optical communication, and sensing. Recent studies have demonstrated the direct generation of frequency combs, via second-order processes, that are centered on two different spectral regions separated by an octave. Here, we present the capability of optical quadratic frequency combs for broad-bandwidth spectral emission in unexplored regimes. We consider comb formation under phase-matched conditions in a continuous-wave pumped singly resonant second-harmonic cavity, with large intracavity power and control of the detuning over several cavity line widths. The spectral analysis reveals quite distinctive sidebands that arise far away from the pump, singularly or in a mixed regime together with narrowband frequency combs. Notably, by increasing the input power, the optical frequency lines evolve into widely spaced frequency clusters, and at maximum power, they appear in a wavelength range spanning up to 100 nm. The obtained results demonstrate the power of second-order nonlinearities for direct comb production within a wide range of pump wavelengths.

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