Research

Visit the other research sections:

Find also more results in my publication list, or via online profiles.

Laser Systems & Optical Resonators

Advanced laser systems with nested optical resonator

We embed optical resonators within active fiber cavities to unlock and study novel features and nonlinear dynamics:

Efficient optical frequency combs generated via a novel class of dissipative solitons: laser cavity solitons (LCS) in nested microresonator cavity
Laser mode-locking using microresonator-based nonlinear optical loop mirrrors (NOLM/NALM): Low-energy & ultra-narrow spectral width passive mode-locking (world record low-bandwitdh)
Study of resonator thermo-optical instabilities (e.g. complex coupling of laser gain and resonator thermo-optical frequency shift for saturable absorbtion and Q-switching)

Schematic of a microresonator-based laser mode-locked with a nonlinear optical loop mirrror (left) ; Example of microrod resonator coupled with a fiber taper to explore thermo-optical instability dynamics in gain coupled cavity systems (right).

Optical microresonator (blue) nested in a fibre laser cavity (yellow), used for the generation of frequency microcombs (inset) via the formation of energy-efficient laser cavity solitons

See a video from our colleagues at the University of Sussex talking a bit more about these results.

Principle used for the generation of a "quantum frequency comb":

Additional processing and functionalities can be obtained via coherent optical control (spectral filtering/shaping, phase/amplitude modulation, etc.)

Optical quantum state generation and processing

We use integrated optical resonator systems for the generation and coherent control of quantum optical state:

Multiple single photons
Entangled photon pairs
Multi-mode/photon entangled states

Selected publications:

M. Rowley, B. Wetzel, L. Di Lauro, J.S. Totero Gongora, H. Bao, J. Silver, L. Del Bino, P. Del’Haye, M. Peccianti, A. Pasquazi, Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization, Optics Express, Vol. 27, Issue 14, pp. 19242-19254 (2019)
H. Bao, A. Cooper, M. Rowley, L. Di Lauro, J.S. Totero Gongora, S.T. Chu, B.E. Little, G.L. Oppo, R. Morandotti, D.J. Moss, B. Wetzel, M. Peccianti, A. Pasquazi, Laser cavity-soliton microcombs, Nature Photonics, Vol. 13, Issue 6, pp. 384-389 (2019)
M. Kues, C. Reimer, P. Roztocki, L. Romero Cortés, S. Sciara, B. Wetzel, Y. Zhang, A. Cino, S.T. Chu, B.E. Little, D.J. Moss, L. Caspani, J. Azaña, R. Morandotti, On-chip generation of high-dimensional entangled quantum states and their coherent control, Nature, Vol. 546, pp. 622 (2017)
M. Kues, C. Reimer, B. Wetzel, P. Roztocki, B.E. Little, S.T. Chu, D.J. Moss, R. Morandotti, Passively mode-locked laser with ultra-narrow spectral width, Nature Photonics, Vol. 11, pp. 159 (2017)
C. Reimer, M. Kues, P. Roztocki, B. Wetzel, F. Grazioso, B.E. Little, S.T. Chu, T. Johnston, Y. Bromberg, L. Caspani, D.J. Moss, R. Morandotti, Generation of multiphoton entangled quantum states by means of integrated frequency combs, Science, Vol. 351, pp. 1176 (2016)
C. Reimer, M. Kues, L. Caspani, B. Wetzel, P. Roztocki, M. Clerici, Y. Jestin, M. Ferrera, M. Peccianti, A. Pasquazi, B.E. Little, S.T. Chu, D.J. Moss, R. Morandotti, Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip, Nature Communications, Vol. 6, pp. 8236 (2015)
P. Heinricht, B. Wetzel, S. O’Brien, A. Amann, S. Osborne, Bistability in an injection locked two color laser with dual injection, Applied Physics Letters, Vol. 99, Issue 1, pp. 011104 (2011)

Selected highlights & monographs:

M. Kues, C. Reimer, P. Roztocki, L. Romero Cortés, S. Sciara, B. Wetzel, Y. Zhang, A. Cino, S.T. Chu, B.E. Little, D.J. Moss, L. Caspani, J. Azaña, R. Morandotti, Scaling on-chip entangled photon states to higher dimensions, Optics & Photonics News Special Issue: Optics in 2017, Vol. 28, Issue 12, pp. 37 (2017)
C. Reimer, M. Kues, P. Roztocki, B. Wetzel, F. Grazioso, B.E. Little, S.T. Chu, T. Johnston, Y. Bromberg, L. Caspani, D.J. Moss, R. Morandotti, On-chip quantum frequency combs, Optics & Photonics News Special Issue: Optics in 2016, Vol. 27, Issue 12, pp. 46 (2016)

Google Sites

Report abuse