Results 21 to 30 of about 366,688 (312)

Novel design for noise controlled semiconductor optical amplifier [PDF]

, 2009
The use of semiconductor optical amplifiers (SOA) in optical communications networks has so far been limited due to their inherent large noise figure (NF) compared to Erbium Doped Fibre Amplifiers.
Frederic Surre, Carney, Kevin, Severine Philippe, Philippe, Severine, Surre, Frederic, Kevin Carney, Lennox, Robert, Bradley, Ann Louise, R. Lennox, Pascal Landais, Landais, Pascal, A. Louise Bradley   +11 more
core   +1 more source

Polarization resolved four-wave-mixing-based measurement in bulk material semiconductor optical amplifier [PDF]

, 2006
The anticipated growth in demand for bandwidth leads to the development of all-optical signal processing techniques at ever increasing data rates. One possible candidate to achieve the required performance is the semiconductor optical amplifier (SOA). It
S. Philippe, B. Kennedy, Philippe, Severine, Surre, Frederic, Kennedy, Brendan F., Bradley, Ann Louise, A. Bradley, Landais, Pascal, F. Surre, P. Landais   +9 more
core   +1 more source

The Electronic Behavior and Mechanical Characteristics of CuGa5S8

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2022
In this theoretical study, it is presented that the electronic behavior and mechanical characteristics of CuGa5S8 compound having face centered cubic structure with space group F4 ̅3m and space number 216.
Aytaç Erkişi, Yusuf Özcan
doaj   +1 more source

Passively mode-locked diode-pumped surface-emitting semiconductor laser

, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C., Morier-Genoud, F., F. Morier-Genoud, J. S. Roberts, Roberts, J.S., Garnache, A., A. C. Tropper, Keller, U., Paschotta, R., A. Garnache, Oesterle, U., S. Dhanjal, U. Oesterle, Dhanjal, S., Häring, R., R. Häring, R. Paschotta, S. Hoogland, U. Keller, Hoogland, S.   +19 more
core   +1 more source

Review on the ionizing irradiation preparation of semiconductor CdS fluorescent quantum dots

Fushe yanjiu yu fushe gongyi xuebao, 2021
Semiconductor CdS fluorescent quantum dots (QDs) have been widely studied for their excellent optical and electrical properties. There are many mature preparation methods of CdS QDs have been developed.
ZHAO Yuan, SONG Xiaofang, YANG Jinyu, WANG Yayang, LIU Dongliang, RAO Lu, LI Yuesheng   +6 more
doaj   +1 more source

Passively mode-locked semiconductor lasers and their applications [PDF]

, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Frederic Surre, Surre, Frederic, Latkowski, Sylwester, Sylwester Latkowski, Pascal Landais, Landais, Pascal   +5 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Bifurcation analysis of a semiconductor laser with filtered optical feedback

, 2006
We study the dynamics and bifurcations of a semiconductor laser with delayed filtered feedback, where a part of the output of the laser re-enters after spectral filtering.
Erzgraeber, H., Krauskopf, B., Erzgraeber, H, Lenstra, D., Bernd Krauskopf, H. Erzgraber, Lenstra, D, Erzgraber, H, Krauskopf, B, Daan Lenstra   +9 more
core   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Oxide Ceramic Large‐scale Integration Device for Putting the Brakes on Global Boiling Accelerated by Artificial Intelligence Age Computers

International Journal of Ceramic Engineering & Science
One factor that is considered to be a cause of global boiling, which is becoming a serious social problem, is the rapid progress and widespread use of artificial intelligence (AI).
Shunpei Yamazaki, Tatsuya Onuki, Satoru Saito, Shoki Miyata, Kazuma Furutani, Kazuki Tsuda, Hiromichi Godo, Takanori Matsuzaki, Kenichi Okazaki, Hidekazu Miyairi, Motomu Kurata, Yasuhiro Jinbo, Fumito Isaka, Yuji Egi, Yoshinori Ando, Tsutomu Murakawa, Ryota Hodo, Toshikazu Ohno, Ryosuke Motoyoshi, Yuichi Yanagisawa, Yukinori Shima, Masami Jincho, Yasutaka Nakazawa, Masahiro Watanabe, Kayo Kumakura, Masataka Nakada, Ami Sato, Shinya Fukuzaki, Toshiki Sasaki, Nobuharu Ohsawa, Yuto Yakubo   +30 more
doaj   +1 more source