Mr. Fanchao Meng Profile

Fanchao Meng

at Institut FEMTO-ST

SPIE Involvement:

Author

Publications (3)

Proceedings Article | 1 April 2022 Presentation

Real-time measurements of incoherent instabilities and rogue waves in an extreme broadband dissipative soliton laser

Fanchao Meng, Coraline Lapre, Cyril Billet, Thibault Sylvestre, Jean-Marc Merolla, Christophe Finot, Sergei Turitsyn, Goëry Genty, John Dudley

Proceedings Volume PC11986, PC1198604 (2022) https://doi.org/10.1117/12.2609307

KEYWORDS: Solitons, Pulsed laser operation, Computer simulations, Supercontinuum generation, Pollution control, Physics, Photonics, Optical simulations, Optical fibers, Nonlinear optics

Read Abstract +

Proceedings Article | 1 April 2020 Presentation

Real-time measurement of soliton-similariton explosions and intermittence instabilities in a mode-locked fibre laser (Conference Presentation)

Coraline Lapre, Cyril Billet, Fanchao Meng, Piotr Ryczkowski, Thibaut Sylvestre, Christophe Finot, Goery Genty, John Dudley

Proceedings Volume 11358, 113580P (2020) https://doi.org/10.1117/12.2554699

Read Abstract +

Ultrafast mode-locked lasers are well-known to display a rich variety of unstable dissipative soliton dynamics resulting from the interplay of nonlinearity, dispersion and dissipation. Although laser instabilities have been known and studied in depth for many years, their properties have recently received greatly renewed attention because of the development of time and frequency domain techniques that allow laser dynamics and instabilities to be measured in real-time. This has allowed the variations in circulating pulse characteristics to be examined on a roundtrip to roundtrip basis, providing a new window into understanding these instabilities and how they develop based on the cavity configuration being used. A technique of this kind that has proven both straightforward to implement and powerful is the photonic time stretch or dispersive Fourier transform (DFT) which has been used in a number of important applications including the measurement of soliton rogue waves, modulation instability and supercontinuum noise. The DFT allows direct access to shot-to-shot measurement of the mode-locked fibre laser spectrum and, via computation of the associated autocorrelation function, can also provide complementary time-domain information in cases where multiple pulse states are observed. In this paper, we report results of DFT measurements which have been used to reveal previously unreported behavior in a mode-locked fiber laser designed to operate with soliton-similariton dynamics. In particular, we observe instabilities including soliton explosions, chaotic evolution and oscillation in the relative phase of bound-state multi-pulse molecules, and what we believe to be a previously-unobserved regime of operation associated with the intermittent appearance of short-lived stable single pulses within of otherwise chaotic dynamics. Our results - obtained in a laser believed to be a particularly stable design - suggest that instabilities such as soliton explosions and intermittence are a universal feature of dissipative soliton systems transitioning from noise to stability.

Proceedings Article | 1 April 2020 Presentation + Paper

Reproducing complex explosion and intermittence dynamics in a dissipative soliton laser using a scalar iterative map

Fanchao Meng, Coraline Lapre, Cyril Billet, Goëry Genty, John Dudley

Proceedings Volume 11358, 113580X (2020) https://doi.org/10.1117/12.2554753

KEYWORDS: Molecules, Solitons, Picosecond phenomena, Pulsed laser operation, Molecular lasers, Laser resonators, Molecular interactions, Mode locking, Single mode fibers, Optical filters

Read Abstract +

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years