AI Article Synopsis
- This study introduces a new erbium-doped fiber laser that uses an innovative MoxWTe-based nonlinear optical modulator to create various pulse types, including bright and dark pulses.
- Key parameters of the modulator, like modulation depth (7.8%) and saturation intensity (8.6 MW/cm), were measured, demonstrating effective operation at specific output levels of the laser.
- The findings suggest that adjusting the output energy can enhance the likelihood of generating dark pulses, with potential applications in advancing fiber laser technology.
Article Abstract
We proposed an erbium-doped fiber laser mode-locked with a MoxWTe-based nonlinear optical modulator for the first time to our best knowledge. This fiber laser can deliver bright pulses, bright-dark pulse pairs, dark pulses, bright-dark-bright pulses, and dark-dark-bright pulses. The modulation depth and saturation intensity of the MoxWTe-based saturable absorber were about 7.8% and 8.6 MW/cm, respectively. When 10% of the laser in the cavity was output, conventional soliton pulses with central wavelength of 1560.1 nm can be obtained in the cavity. When 70% of the laser was output, dual-wavelength domain-wall dark pulses appeared in the laser cavity. This experiment revealed that an appropriate increase in the ratio of output energy can improve the chance of dark pulses in fiber lasers. The mode-locking states in this fiber laser can evolve with each other between bright pulses, bright-dark pulse pairs and dark pulses by adjusting the polarization controller. The results indicated that the MoxWTe can be used to make modulators for generating dark pulses. Furthermore, our work will be of great help to improve the chance of the generation of dark pulse in fiber lasers.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.495494 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Feeding- and Light-Cycle Synergistically Regulate Mouse Blood Pressure Daily Rhythm via -Dependent and Independent Mechanisms.
J Biol Rhythms
January 2025
Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky.
Cardiovascular health requires the orchestration of the daily rhythm of blood pressure (BP), which responds to changes in light exposure and dietary patterns. Whether rhythmic light and feeding can modulate daily BP rhythm directly or via modulating intrinsic core clock gene is unknown. Using inducible global knockout mice (iBmal1KO), we explored the impact of rhythmic light, rhythmic feeding, or their combination on various physiological parameters.
View Article and Find Full Text PDFExcellent Mechanical Performance of Cellulose Composite Papers for Flexible Self-Powered Photodetectors Using the ZnO/PbS Heterojunction.
ACS Appl Mater Interfaces
January 2025
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
Cellulose is attracting considerable attention in the field of flexible electronics due to its unique properties and environmental sustainability, particularly as a substrate for flexible devices. Flexible photodetectors are an integral part of cellulose-based devices and have become essential in optical communication, heart rate monitoring, and imaging systems. The performance and adaptability of these photodetectors depend significantly on the quality of the flexible substrates.
View Article and Find Full Text PDFMelatonin Alleviates Circadian Rhythm Disruption-Induced Enhanced Luteinizing Hormone Pulse Frequency and Ovarian Dysfunction.
J Pineal Res
January 2025
Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China.
Circadian rhythm disruption (CRD), stemming from sleep disorders and/or shift work, is a risk factor for reproductive dysfunction. CRD has been reported to disturb nocturnal melatonin signaling, which plays a crucial role in female reproduction as a circadian regulator and an antioxidant. The hypothalamic-pituitary-ovarian (HPO) axis regulates female reproduction, with luteinizing hormone (LH) pulse pattern playing a pivotal role in folliculogenesis and steroidogenesis.
View Article and Find Full Text PDFMatched Guiding and Controlled Injection in Dark-Current-Free, 10-GeV-Class, Channel-Guided Laser-Plasma Accelerators.
Phys Rev Lett
December 2024
Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
Article Synopsis
- Researchers investigated how high-intensity laser pulses propagate through a plasma channel by adjusting its length, successfully guiding 500 terawatt pulses over distances of 30 cm in hydrogen plasma.
- They observed the initial energy transfer involving higher-order modes and a transition to more efficient propagation, noting a depletion of laser energy that generates wakefields.
- Utilizing 21.3 joules of laser energy for localized electron injection, they achieved electron bunches with nearly monenergetic peaks reaching 9.2 GeV and total charge exceeding 10 GeV.
Robust Quantum Control via Multipath Interference for Thousandfold Phase Amplification in a Resonant Atom Interferometer.
Phys Rev Lett
December 2024
Department of Physics and Astronomy and Center for Fundamental Physics, Northwestern University, Evanston, Illinois 60208, USA.
We introduce a novel technique for enhancing the robustness of light-pulse atom interferometers against the pulse infidelities that typically limit their sensitivities. The technique uses quantum optimal control to favorably harness the multipath interference of the stray trajectories produced by imperfect atom-optics operations. We apply this method to a resonant atom interferometer and achieve thousandfold phase amplification, representing a 50-fold improvement over the performance observed without optimized control.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!