Search Results - "spontaneous emission"
-
1
Amplified spontaneous emissions from (oxalato)(dibenzoylmethanato)boron
Published 2005“…Amplified spontaneous emissions (ASE) from two boron-containing organic compounds, (oxalato)(dibenzoylmethanato)boron, were obtained for the first time using a nitrogen laser as the pump source. …”
Get full text
-
2
-
3
-
4
Modelling of multimode selenide-chalcogenide glass fibre based MIR spontaneous emission sources
Published 2017“…Chalcogenide glass fibres have been demonstrated as a suitable medium for the realisation of spontaneous emission sources for mid-infrared photonics applications with a particular emphasis on sensor technology. …”
Get full text
-
5
Numerical modelling of Tb3+ doped selenide-chalcogenide multimode fibre based spontaneous emission sources
Published 2017“…A model is developed of a terbium (III) ion doped selenide chalcogenide glass fibre source that provides spontaneous emission within the mid-infrared (MIR) wavelength range. …”
Get full text
-
6
-
7
Simplified ASE correction algorithm for variable gain-flattened Erbium-doped fiber amplifier
Published 2009“…We demonstrate a simplified algorithm to manifest the contribution of amplified spontaneous emission in variable gain-flattened Erbium-doped fiber amplifier (EDFA). …”
Get full text
Get full text
-
8
Design and Development of In-Line Optical Amplifiers
Published 2004“…The noise problem created in the Erbium doped fiber amplifiers was the main source that contributed to the high Amplified Spontaneous Emission. The concatenated chain caused the Amplified Spontaneous Emission to accumulate. …”
Get full text
Get full text
-
9
Performance Analysis And Design Of A WDM Ring Network
Published 2007“…The transmission limitations studied in this work that could degrade the performance of a multi-channel WDM ring network are amplified spontaneous emission noise (ASE) arising from the use of Erbium-doped fiber amplifiers (EDFAs), linear crosstalk caused by device imperfections and nonlinear effects such as four mixing (FWN) and cross phase modulation (XPM) due to optical fiber imperfections.…”
Get full text
-
10
Extended free-space optical communications
Published 2016“…This system performance is considered in the presence of amplified spontaneous emission (ASE) noise, scintillation, beam spreading, atmospheric attenuation and interchannel crosstalk. …”
Get full text
-
11
Empirical Modelling And Experimental Investigation On Absorption Spectra Of Colloidal Metal Nanoparticles And Quantum Dots Suspended In Ionic Surrounding Media
Published 2019“…This study investigates the influence of the nanoparticle size and refractive index of non-absorbent ionic surrounding media on the optical absorption spectra of noble metal nanoparticles (Au, Ag; excited emission) and semiconductor quantum dots (CdSe/ZnS; spontaneous emission) designed for sensing application.…”
Get full text
Get full text
-
12
High gain Er3+-doped fiber amplifier with double-pass preamplification stage
Published 2006“…An efficient-filtering of amplified spontaneous emission improves gain at the signal wavelength up to 18 dB in the double-pass amplifier section The noise-figure penalty is very minimal in the small-signal range, compared to the dual-stage amplifier without bandpass filters. …”
Get full text
-
13
New erbium-doped fiber laser with a double tunable bandpass filter
Published 2008“…This configuration suppresses the amplified spontaneous emission and achieves a highly stable output power of more than 18 dBm at 1560 nm. …”
Get full text
Get full text
-
14
Opto-VLSI-based reconfigurable photonic RF filter
Published 2009“…In this paper, we propose and experimentally demonstrate the concept of a reconfigurable photonic RF filter structure integrating an Amplified Spontaneous Emission (ASE) source, an Opto-VLSI processor that generates arbitrary phase-only steering and multicasting holograms for wavelength selection and attenuation, arrayed waveguide gratings (AWGs) for waveband multiplexing and demultiplexing, high-dispersion fibres for RF delay synthesis, and a balanced photodetector for generating positive and negative processor weights. …”
Get full text
-
15
Gain and noise figure improvements in double-pass S-band EDFA
Published 2007“…It uses a broadband fiber Bragg grating (FBG) operating in conventional-band (C-band) region to reduce the C-band amplified spontaneous emission (ASE) in the amplifier system and thus increases the population inversion in the S-band region. …”
Get full text
Get full text
-
16
Experimental investigation of noise in double-pass erbium-doped fiber amplifiers
Published 2007“…The noise figure penalty of the double-pass amplifier compared to single-pass amplifier is contributed by the generation of amplified spontaneous emission in backward direction with respect to the initial signal direction. …”
Get full text
-
17
Self-consistent simulation of high-brightness diode lasers with external optical feedback
Published 2015“…We consider the impact of the optical feedback on the excitation of amplified spontaneous emission in the parasitic vertical modes.…”
Get full text
-
18
A new erbium doped fiber amplifier
Published 2009“…Double-pass amplification in a dual-stage using a fiber loop-back is incorporated with a Tunable band pass filter. Spontaneous emission is filtered-out in the mid-section to ensure efficient amplification of the signal as it propagates along the fiber. …”
Get full text
Get full text
-
19
Design, Simulations, and Optimizations of Mid-infrared Multiple Quantum Well LEDs
Published 2016“…Simulation results suggest that the number of quantum wells has little influence on the spontaneous emission rate and gain because of no strong coupling between quantum wells and they just simply follow scaling laws. …”
Get full text
-
20
Enhanced structure of a double-pass erbium-doped fiber amplifier for multiple wavelength amplifications.
Published 2008“…The structure is able to filter out the amplified spontaneous emission that saturates the amplifier gain in the small signal regime. …”
Get full text
Get full text