Results 31 to 40 of about 4,432 (220)

Gain Characteristics of Few-Mode EDFA With Different Pump

IEEE Photonics Journal, 2022
Few-mode erbium-doped fiber amplifier (FM-EDFA) is a key device to achieve power compensation in long-haul mode division multiplexing (MDM) optical system.
Wenxuan Xu, Li Pei, Jianshuai Wang, Jingjing Zheng, Zhiqi Li, Tigang Ning, Li Jing, Guobin Ren   +7 more
doaj   +1 more source

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

Jurnal Elkomika, 2023
ABSTRAK Jaringan seluler terkini membutuhkan kapasitas tinggi dan latensi rendah di fronthaul yang dapat didukung oleh radio over fiber (RoF) dengan gelombang milimeter.
CATUR APRIONO, SALSABILA SHITA PUTRI NUGROHO, YUS NATALI   +2 more
doaj   +1 more source

Simulation of Gain flattening 32 channels EDFA-DWDM Optical System [PDF]

, 2016
The gain flatness of EDFA plays a very critical role in DWDM system applications in all optical network design. The main purpose of this paper is to achieve gain flatness for 32 channels in order to equalize amplitude gain of DWDM system. This system is
Amit Patni, Kumar, D. (Durgesh), Durgesh Kumar, Patni, A. (Amit)   +3 more
core   +1 more source

Strain Imaging of GaAs by Stimulated Raman Scattering Microscopy

Journal of Raman Spectroscopy, EarlyView.
Telecom‐wavelength stimulated Raman scattering (SRS) microscopy is developed for high‐throughput, nondestructive characterization of gallium arsenide (GaAs). By overcoming optical absorption limits of conventional Raman systems, this technique enables precise visualization of LO phonon frequency variations (< 0.2‐cm−1$$ {}^{-1} $$ precision).
Yuki Sano, Yasuyuki Ozeki
wiley   +1 more source

Toward Highest Frequency, Phase‐Sensitive Electric Field Sensing Enabled by Plasmonic Circuits

Laser &Photonics Reviews, EarlyView.
An electromagnetic field sensor using an optical sensor head for distortion‐free, high‐sensitivity measurements with potential for high‐frequency operation is presented. The frequency response is enabled by an antenna‐integrated plasmonic modulator. The sensitivity is calculated, and optimizations to obtain thermal‐background‐limited sensitivity are ...
Michael Baumann, Hande Ibili, Boris Vukovic, Tobias Blatter, Jasmin Smajic, Juerg Leuthold   +5 more
wiley   +1 more source

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, EarlyView.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source

Suppression of Transient Gain Excursions in EDFA’s [PDF]

, 2006
In this paper a comparative study of two pump control schemes for suppressing transient gain excursions in EDFA’s is presented. The first control scheme is based on the traditional feedforward/feedback control, while the second scheme is new and uses multiplication to combine the feedforward and feedback blocks.
Mladen Males, Antonio Cantoni, John Tuthill   +2 more
openaire   +1 more source

Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes

Laser &Photonics Reviews, EarlyView.
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

Simultaneous in-service fault-locating and EDFA-monitotingsupervisory transmissionin EDFA-repeatered systems

Electronics Letters, 1994
In-service WDM-based supervisory transmission in four/five EDFA-repeater 375 km/365 km systems is demonstrated. Simultaneous EDFA status-monitoring and fibre fault location are achieved without degrading the 2.5 Gbit/s service.
Y.K. Chen, W.Y. Guo, W.I. Way, S. Chi
openaire   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

Laser &Photonics Reviews, EarlyView.
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