Results 81 to 90 of about 41,398 (301)

Spectral Sidebands and Multi-Pulse Formation in Passively Mode Locked Lasers

, 2011
Pulse formation in passively mode locked lasers is often accompanied with dispersive waves that form of spectral sidebands due to spatial inhomogoneities in the laser cavity.
Bekker, Alexander, Fischer, Baruch, Gat, Omri, Smulakovsky, Vladimir, Weill, Rafi   +4 more
core   +1 more source

Modeling of mode-locking in a laser with spatially separate gain media [PDF]

, 2010
We present a novel laser mode-locking scheme and discuss its unusual properties and feasibility using a theoretical model. A large set of single-frequency continuous-wave lasers oscillate by amplification in spatially separated gain media.
Aschwanden, Byrne, C. J. Lee, Daneu, Eng, Garner, Grange, H. L. Offerhaus, Hansteen, Harding, Heck, Hänsch, K. -. Boller, Keller, Keller, Keller, Klein, Kobayashi, P. D. Van Voorst, Pfeiffer, R. M. Oldenbeuving, Robertson, Rooth   +22 more
core   +6 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Pulse Narrowing and RF Linewidth Reduction of Integrated Passively Mode-Locked Laser in Anticolliding Design by Means of Spectral Tuning

IEEE Photonics Journal, 2016
In this paper, we present the first tunable extended cavity integrated passively mode-locked laser realized in an anticolliding design. The laser is realized as an InP-based photonic integrated circuit.
V. Moskalenko, K. A. Williams, E. A. J. M. Bente   +2 more
doaj   +1 more source

Dynamics of carbon nanotube-based mode-locking fiber lasers

Nanophotonics, 2020
Carbon nanotube (CNT) can work as excellent saturable absorber (SA) due to its advantages of fast recovery, low saturation intensity, polarization insensitivity, deep modulation depth, broad operation bandwidth, outstanding environmental stability, and ...
Huang Lin, Zhang Yusheng, Liu Xueming
doaj   +1 more source

CMOS compatible integrated all-optical radio frequency spectrum analyzer [PDF]

, 2014
We report an integrated all-optical radio frequency spectrum analyzer based on a ~4cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz.
Alessia Pasquazi, Brent E. Little, Christian Reimer, Corcoran, David J. Moss, Dorrer, Duchesne, Duchesne, Ferrera, Ferrera, Finch, Finsterbusch, French, Galili, Hillerkuss, Leuthold, Li, Lucia Caspani, Marcello Ferrera, Marco Peccianti, Matteo Clerici, Moss, Paschotta, Pasquazi, Pasquazi, Peccianti, Pelusi, Pelusi, Preussler, Reimer, Roberto Morandotti, Sai T. Chu, Salem, Sanghera, Schneider, Valley, von der Linde   +36 more
core   +2 more sources

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Sub-100-as timing jitter optical pulse trains from mode-locked Er-fiber lasers

, 2011
We demonstrate sub-100-attosecond timing jitter optical pulse trains generated from free-running, 77.6-MHz repetition-rate, mode-locked Er-fiber lasers.
Chang Hee Nam, Chur Kim, Cox, Haus, Hyoji Kim, Jungwon Kim, Kim, Kim, Kwangyun Jung, Namiki, Nicholson, Nugent-Glandorf, Paschotta, Schibli, Song, Song, Tae Keun Kim, Youjian Song   +17 more
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source