Results 51 to 60 of about 5,775,017 (170)

Organelle Crosstalk and Metabolic Reprogramming in Idiopathic Pulmonary Fibrosis: Mechanisms and Therapeutic Implications

Cell Biochemistry and Function, Volume 44, Issue 9, September 2026.
ABSTRACT Idiopathic pulmonary fibrosis (IPF) is a fatal interstitial lung disease of unknown cause, marked by excessive deposition of extracellular matrix (ECM) components such as collagen. This pathological accumulation results in progressive destruction of the lung architecture and ultimately leads to respiratory failure.
Yining Zhang, Ling Teng, Limin Gong, Yuandong Fu, Minyi Qian   +4 more
wiley   +1 more source

High power cladding-pumped Raman fiber laser with true single-mode output at 1660 nm

, 2006
We report a 10 W continuous-wave cladding-pump Raman fiber laser with single-mode output at 1660 nm pumped by a high-power Er:Yb fiber amplifier. The laser threshold was 6.5 W and its slope efficiency was 67%
Jeong, Y., Nilsson, J., Codemard, C.A., Dupriez, P., Ibsen, M., Sahu, J.K.   +5 more
core   +2 more sources

Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes

Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano, Jianhao Zhang, David González‐Andrade, Daniele Melati, Eric Cassan, Pavel Cheben, Laurent Vivien, Norberto Daniel Lanzillotti‐Kimura, Carlos Alonso‐Ramos   +8 more
wiley   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang, Santiago Bernal, David V. Plant, Lawrence R. Chen   +3 more
wiley   +1 more source

All‐Polarization‐Maintaining Mode‐Locked Fiber Laser with Tunable Evolution of Dual‐Wavelength Pulse States

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
An all‐polarization‐maintaining fiber laser is presented that enables flexible dual‐wavelength pulse manipulation by simply adjusting the PM‐SMF splicing angle. Through this precise adjustment, the system achieves controllable switching between asynchronous dual‐comb pulses and synchronous bound solitons, thereby providing a highly compact and robust ...
Yan Li, Yongkang Shi, Ping Tang, Zixuan Guo, Xiaosheng Xiao, Lili Gui, Feng Wu, Xi Peng, Gengyan Chen   +8 more
wiley   +1 more source

Investigations of Few-Mode Erbium-Doped Fiber Amplifier Employing Layered-Distributed Refractive Index

Guangtongxin yanjiu
ObjectiveWith the requirements of increased capacity in optical communication systems and the developments of few-mode-fiber-based space-division-multiplexing systems, the Few-Mode Erbium-Doped Fiber amplifier (FM-EDFA) utilized as a repeater has ...
RUAN Jiangran, LI Ni, DU Mei, LIU Yufei, YANG Shunxing   +4 more
doaj  

Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs

, 2001
We theoretically and experimentally analyze Q-switched cladding pumped ytterbium-doped fiber lasers designed for high pulse energies. We compare the extractable energy from two high-energy fiber designs: (1) single- or few-moded low-NA large mode area ...
Alvarez-Chavez, J.A., Clarkson, W.A., Nilsson, J., Offerhaus, H.L., Turner, P.W., Renaud, Cyril C., Richardson, D.J., Grudinin, A.B.   +7 more
core   +1 more source

First demonstration of multimode amplifier for spatial division multiplexed transmission systems

We present the first systematic study of a two-moded erbium-doped fiber amplifier, and identified its performance trends.
Jung, Y., Giles, I., Li, Z., Richardson, D.J., Poletti, F., Grüner-Nielsen, L., Sahu, J.K., Alam, S.-U., Dhar, A., Giles, D.   +9 more
core   +1 more source

Waveguiding and photoluminescence in Er³⁺-doped Ta₂O₅ planar waveguides [PDF]

, 2009
The optimization of erbium-doped Ta2O5 thin film waveguides deposited by magnetron sputtering onto thermally oxidized silicon wafer is described. Optical constants of the film were determined by ellipsometry.
OTON NIETO, CLAUDIO JOSE, Wilkinson, James S., Claudio J. Oton, Robert Greef, Ananth Z. Subramanian, Subramanian, Ananth Z., James S. Wilkinson, Oton, Claudio J., Greef, Robert, Subramanian, Ananth Z   +9 more
core   +1 more source

Configurable Er-doped core-pumped multi-element fiber amplifier

We demonstrated an Erbium-doped multi-element-fiber amplifier extending the bandwidth at shorter wavelengths in C-band. Each fiber-element provides a maximum gain of 36dB and NF <4dB.
Thipparapu, N.K., May-Smith, T., Jain, S., Sahu, J.K.   +3 more
core   +1 more source