Results 11 to 20 of about 308,424 (390)
Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling [PDF]
Nature Communications, 2019 Colloidal semiconductor quantum wells have emerged as a promising material platform for use in solution-processable lasers. However, applications relying on their optical gain suffer from nonradiative Auger decay due to multi-excitonic nature of light ...
N. Taghipour +9 more
semanticscholar +1 more source
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2014 In this paper we have implemented an all-optical OR-gate using simultaneous Four-Wave Mixing (FWM) and Cross-Gain Modulation (XGM) in a semiconductor optical amplifier (SOA).Which incorporates two semiconductor optical amplifiers (SOAs).The proposed OR ...
Chandra Kamal Borgohain +2 more
doaj +1 more source
Micro‐Transfer‐Printed III‐V‐on‐Silicon C‐Band Semiconductor Optical Amplifiers
Laser & Photonics reviews, 2020 The micro‐transfer‐printing of prefabricated C‐band semiconductor optical amplifiers (SOAs) on a silicon waveguide circuit is reported. The SOAs are 1.35 mm in length and 40 µm in width.
B. Haq +7 more
semanticscholar +1 more source
The gain and carrier density in semiconductor lasers under steady-state and transient conditions [PDF]
, 1992 The carrier distribution functions in a semiconductor crystal in the presence of a strong optical field are obtained. These are used to derive expressions for the gain dependence on the carrier density and on the optical intensity-the gain suppression ...
Chen, T. R., Yariv, Amnon, Zhao, Bin
core +1 more source
Light: Science & Applications, 2020 Semiconductors that can provide optical gain at extremely low carrier density levels are critically important for applications such as energy efficient nanolasers. However, all current semiconductor lasers are based on traditional semiconductor materials
Zhen Wang +6 more
semanticscholar +1 more source
Quantum box fabrication tolerance and size limits in semiconductors and their effect on optical gain [PDF]
, 1988 Lower and upper limits on size are established for quantum boxes. The lower limit is shown to result from a critical size below which bound electronic states no longer exist. This critical size is different for electrons and holes.
Vahala, Kerry J.
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Frequency dynamics of gain-switched injection-locked semiconductor lasers [PDF]
, 1997 The frequency dynamics of gain-switched singlemode semiconductor lasers subject to optical injection is investigated. The requirements for low time jitter and reduced frequency chirp operation are studied as a function of the frequency mismatch between ...
Dellunde i Clavé, Jaume +3 more
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Applied Sciences, 2020 The feasibility of employing a birefringent fiber loop to enhance the performance of a directly modulated reflective semiconductor optical amplifier is experimentally demonstrated for the first time.
Zoe V. Rizou +3 more
doaj +1 more source
A monolithically integrated optical repeater [PDF]
, 1979 A monolithically integrated optical repeater has been fabricated on a single-crystal semi-insulating GaAs substrate. The repeater consists of an optical detector, an electronic amplifier, and a double heterostructure crowding effect laser.
Bar-Chaim, N. +6 more
core +1 more source
IEEE Photonics Journal, 2021 This paper presents theoretical and experimental analysis of up-converted coherent population oscillations (Up-CPO) in semiconductor optical amplifiers (SOAs) for tunable optical phase shift applications at high frequencies. The study of Up-CPO frequency
Noor Hamdash +5 more
doaj +1 more source