Results 41 to 50 of about 123 (115)

Broadband Optical Access using Centralized Carrier Distribution

, 2012
Passive optical network (PON) is considered as an attractive fiber-to-the-home (FTTH) technology. Wavelength division multiplexed (WDM) PON improves the utilization of fiber bandwidth through the use of wavelength domain. A cost-effective solution in WDM
Chi-Wai Chow
core   +1 more source

Tectonothermal Evolution of the NW Wyoming Province: Insights From Coupled Garnet Lu‐Hf and Sm‐Nd Geochronology

Journal of Metamorphic Geology, Volume 43, Issue 8, Page 839-862, October 2025.
ABSTRACT Understanding how Paleoproterozoic orogenic processes shaped the assembly of Laurentia remains a critical puzzle in deciphering Earth's ancient tectonic history. To address this challenge, the Montana metasedimentary terrane in the northwest Wyoming Province, which preserves a complex record of multiple metamorphic episodes, provides a unique ...
Tsai‐Wei Chen, Jeff Vervoort, Julia Baldwin, Peter Baker   +3 more
wiley   +1 more source

In Vivo Differentiation of Cutaneous Melanoma From Benign Nevi With Dual‐Modal System of Optical Coherence Tomography and Raman Spectroscopy

Journal of Biophotonics, Volume 18, Issue 9, September 2025.
An innovative method for noninvasive melanoma diagnosis using the attenuation coefficient from OCT scans and machine learning has been proposed, supporting small sample sizes. When combined with Raman spectroscopy, it can further enhance accuracy. ABSTRACT A multimodal method comprising optical imaging using OCT and molecular detection using Raman ...
Di Wu, Anatoly Fedorov Kukk, Rüdiger Panzer, Steffen Emmert, Bernhard Roth   +4 more
wiley   +1 more source

Synthesis and Characterization of A3[ReO4][ReO3N] and A′2[ReO3N] (A = Rb, Cs; A′ = K, Cs)

European Journal of Inorganic Chemistry, Volume 28, Issue 17, June 17, 2025.
Various new nitridotrioxidorhenate compounds were successfully obtained via flux syntheses. By employing different equivalents of ammonium salts as a nitrogen source, it is possible to incorporate different amounts of nitrogen into perrhenates. Four new structures namely Rb3[ReO4][ReO3N], Cs3[ReO4][ReO3N], K2[ReO3N], and Cs2[ReO3N]—were elucidated and ...
Désirée Badea, Christoph Lenting, Michael Hanrath, Jörn Bruns   +3 more
wiley   +1 more source

A remodulation scheme for wavelength-division multiplexing passive optical network using time-interleaved differential phase shift keying modulation format. [PDF]

, 2011
Li, Pulan.Thesis (M.Phil.)--Chinese University of Hong Kong, 2011.Includes bibliographical references (p. 60-66).Abstracts in English and Chinese.Chapter Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Overview of wavelength division multiplexed ...

core  

Resilient Fiber-Wireless Networks Featuring Scalability and Low Latency: Integrating a Wheel-and-Star Architecture with Wireless Protection

IEEE Access
Future metro-access optical networks will be large-capacity, low-latency, high-reliability, large-scale, cost-efficient platforms that support fiber-wireless convergence.
Zerui Song, Heng Zhang
doaj   +1 more source

Assessing UVA and Laser‐Induced Crosslinking via Brillouin Microscopy

Journal of Biophotonics, Volume 18, Issue 5, May 2025.
UVA crosslinking is the primary treatment to combat keratoconus. Nevertheless, unwanted side effects and limitations due to nonselective irradiation lead to the investigation of alternative irradiation treatments. This study shows similar changes in the Brillouin frequency shift of corneas crosslinked with UVA irradiation and a NIR femtosecond laser ...
Christian A. Iriarte‐Valdez, Johannes Wenzel, Emilie Baron, Alexandra Y. Claus, Stefan Kalies, Karsten Sperlich, Oliver Stachs, Maria Leilani Torres‐Mapa, Alexander Heisterkamp   +8 more
wiley   +1 more source

Wavelength reused bidirectional transmission of adaptively modulated optical OFDM signals in WDM-PONs incorporating SOA and RSOA intensity modulators.

, 2010
Detailed numerical investigations are undertaken of wavelength reused bidirectional transmission of adaptively modulated optical OFDM (AMOOFDM) signals over a single SMF in a colorless WDM-PON incorporating a semiconductor optical amplifier (SOA ...
Jin, XQ, Wei, JL, Giddings, R.P., Jin, X.Q., Mansoor, S.P., Zheng, X., Tang, JM, Mansoor, S, ,, Hugues-Salas, E., Wei, J.L., Hugues-Salas, E, Giddings, RP, Tang, J.M., Zheng, X   +14 more
core   +1 more source

Revolutionizing Underwater Sensor Performance: Tackling Rayleigh Scattering Challenges by Pseudo Random Noise

Advanced Science, Volume 12, Issue 4, January 27, 2025.
This paper is an innovative combination of spread spectrum communication technology and optical fiber sensing technology. The interdisciplinary study provides a promising strategy to address the Rayleigh scattering‐induced parasitic in large‐scale fiber sensing system.
Qihao Hu, Fan Shang, Lina Ma, Wujie Wang, Yi Yu, Yujie Bian, Xiaoqian Zhu, Junqiang Song   +7 more
wiley   +1 more source

Cross‐Correlation Between Crystallinity and Optoelectronic Properties of Mixed‐Perovskite Thin Films Through Multiple Time‐Resolved Spectroscopy

Advanced Energy Materials, Volume 15, Issue 2, January 14, 2025.
This study comprehensively clarified the crucial correlation between crystalline disorder, charge‐carrier dynamics in mixed perovskite, and solar cell performance. Incorporating a trace amount of MAPbBr3 additive effectively mitigates and reduces the structural disorder of FAPbI3, resulting in excellent charge‐carrier dynamics and improved ...
Junho Park, Bong Joo Kang, Gabkyung Seo, Juwon Kim, Tae Gwan Park, Seongsik Nam, Jason J. Yoo, Kitae Lee, Young Uk Jeong, Myeongkee Park, Seong Sik Shin, Fabian Rotermund   +11 more
wiley   +1 more source