Results 51 to 60 of about 143,855 (292)

14.5 GHz passive harmonic mode-locking in a dispersion compensated Tm-doped fiber laser

Scientific Reports, 2017
We demonstrate a high repetition rate passive harmonic mode-locking (HML) based on nonlinear polarization evolution (NPE) technique in a Tm-doped ring fiber laser cavity.
Yazhou Wang, Jianfeng Li, Kundong Mo, Yanyan Wang, Fei Liu, Yong Liu   +5 more
doaj   +1 more source

Vector Nature of Dissipative-Soliton-Resonance Pulses in Fiber Lasers Mode-Locked by Nonlinear Polarization Rotation Technique

IEEE Photonics Journal, 2019
The vector nature of dissipative-soliton-resonance (DSR) pulses is numerically investigated in an all-normal-dispersion Yb-doped fiber laser mode-locked by the nonlinear polarization rotation technique.
Wenxiong Du, Heping Li, Junwen Li, Zhuang Wang, Pinghe Wang, Zhiyao Zhang, Yong Liu   +6 more
doaj   +1 more source

Theory of Polarization Attraction in Parametric Amplifiers Based on Telecommunication Fibers [PDF]

, 2012
We develop from first principles the coupled wave equations that describe polarization-sensitive parametric amplification based on four-wave mixing in standard (randomly birefringent) optical fibers.
Assémat, Assémat, Assémat, Chiarello, Fatome, Freitas, Heebner, Kozlov, Kozlov, Kozlov, Kozlov, Kozlov, Kozlov, Kozlov, Kozlov, Kozlov, Lagrange, Lin, Lin, Lin, Magnus, Martinelli, Massimiliano Guasoni, McKinstrie, Morin, Muga, Pitois, Pitois, Pitois, Sergeyev, Stefan Wabnitz, Sugny, Ursini, Victor V. Kozlov, Wabnitz, Wai, Zadok   +36 more
core   +2 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper evaluates several signal processing techniques for optical dual-polarization quadrature phase-shift keying (DP-QPSK) coherent receivers, using offline post-processing of experimental data.
Thiago F. Portela, Diego V. Souto, Valery N. Rozental, Hugo B. Ferreira, Darli A. A. Mello, Helmut Griesser   +5 more
doaj   +1 more source

Polarization mode dispersion in radio-frequency interferometric embedded fiber-optic sensors [PDF]

, 2001
The effect of fiber birefringence on the propagation delay in an embedded fiber-optic strain sensor is studied. The polarization characteristics of the sensor are described in terms of polarization mode dispersion through the principal states of ...
Dimenstein, O., Eyal, A., Gali, S., Green, A., Tur, M., Zaidman, M.   +5 more
core   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

All-Normal-Dispersion Dissipative Soliton Ytterbium Fiber Laser Without Dispersion Compensation and Additional Filter

IEEE Photonics Journal, 2011
We report on the generation of mode-locked dissipative soliton pulse from an all-fiber ytterbium-doped fiber laser based on nonlinear polarization rotation without dispersion compensation or an additional filter.
Zuxing Zhang, Guoxing Dai
doaj   +1 more source

Dielectric multilayer waveguides for TE and TM mode matching

, 2003
We analyse theoretically for the first time to our knowledge the perfect phase matching of guided TE and TM modes with a multilayer waveguide composed of linear isotropic dielectric materials.
, A V Lavrinenko, Abelès F, Barkovskii L M, Berreman D W, Born M, Bruns W K, D M Shyroki, Dowling J P, Gillies J R, Gu C, Hlawiczka P, Hlawiczka P, Joannopoulos J D, Mendialdua J, Tien P K, Winn J N, Yeh P   +17 more
core   +2 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source