Results 201 to 210 of about 883 (240)
Some of the next articles are maybe not open access.
Novel optical regenerator using semi-reflective semiconductor optical amplifier
Integrated Photonics Research and Applications/Nanophotonics for Information Systems, 2005We propose and theoretically verify optical regenerator using single semi-reflective semiconductor optical amplifier. Using simplified gain model, we explaine operational principle of proposed regenerator. Simulaton result shows proposed scheme acts as 2R regenerator.
Tae-Young Kim, Sang-Kook Han
openaire +1 more source
Simple model for optical pulse propagation in a reflective semiconductor optical amplifier
Numerical Simulation of Optoelectronic Devices, 2010A simple time-domain model is presented that can predict optical pulse propagation in reflective semiconductor optical amplifiers (RSOAs). The RSOA saturation energy, effective lifetime and material gain coefficient parameters used in the model are determined using experimental measurements of the input and output pulse temporal profiles to the RSOA ...
M.J. Connelly, C. O'Riordan
openaire +1 more source
2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
We proposed a novel method suppressing the OBI noise in RSOA based WDM/SCM-PON. This is to use the SOA operated in gain saturation range, which acts as high pass filter. CNR increased up to 15 dB compared with that without using a SOA.
null Yong-Yuk Won +5 more
openaire +1 more source
We proposed a novel method suppressing the OBI noise in RSOA based WDM/SCM-PON. This is to use the SOA operated in gain saturation range, which acts as high pass filter. CNR increased up to 15 dB compared with that without using a SOA.
null Yong-Yuk Won +5 more
openaire +1 more source
Time Delay and Gain Reduction in Reflective Semiconductor Optical Amplifier
2018 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2018Amplification of picosecond optical pulses by reflective semiconductor optical amplifier (RSOA) is theoretically investigated using a high-precision time-domain model. It is demonstrated that, compared to conventional SOA in similar conditions, pulses amplified by RSOA suffer from additional gain reduction of a few dB due to RSOA’s rear-facet ...
openaire +1 more source
Ultrabroadband reflective semiconductor optical amplifier using superimposed quantum dots
Journal of Nanophotonics, 2021An approach has been suggested for the simulation of a quantum dot reflective semiconductor optical amplifier (RSOA) with wideband optical gain. This model is implemented by superimposing different quantum dot groups with various radii using solution process nanotechnology, which is both practical and frugal.
Farshad Serat Nahaei +2 more
openaire +1 more source
Reflective semiconductor optical amplifier modulator dynamic model
Numerical Simulation of Optoelectronic Devices, 2014, 2014A dynamic model of a bulk reflective SOA is described. The model includes spontaneous emission and uses full bandstructure based calculations of the active material gain coefficients. The model is used to simulate the use of an RSOA to modulate an input CW lightwave at multi Gb/s data rates using bias current modulation.
openaire +1 more source
Periodic filaments in reflective broad area semiconductor optical amplifiers
Applied Physics Letters, 1992Filaments with a regular spacing of the order of 25 μm are experimentally observed in double-pass broad area GaAlAs amplifiers for near normal injection angle. Their formation is attributed to nonlinear interaction between counterpropagating beams and Talbot self-imaging.
M. Tamburrini, L. Goldberg, D. Mehuys
openaire +1 more source
Dibit-based OR and NOR gates using reflective semiconductor optical amplifier
Journal of Nonlinear Optical Physics & Materials, 2023In the all-optical domain, the reflective semiconductor optical amplifier (RSOA) creates due attention in the research community because the RSOA has high gain, low-power consumption, high-speed signal processing ability as well as low noise performance. In this work, we have proposed dibit-based OR and NOR gates using RSOA.
Surajit Bosu, Baibaswata Bhattacharjee
openaire +1 more source
Analytical expression for the modulation bandwidth of a reflective semiconductor optical amplifier
12th International Conference on Fiber Optics and Photonics, 2014An analytical formula for the bandwidth of a reflective semiconductor optical amplifier (RSOA) operated by directly modulating its injection current is derived. The formula allows gaining insight into the dependence of the RSOA modulation bandwidth on the main semiconductor parameters.
ANTONELLI, CRISTIAN +3 more
openaire +2 more sources
Reduced Model for the Nonlinear Response of Reflective Semiconductor Optical Amplifiers
IEEE Photonics Technology Letters, 2013Reflective semiconductor optical amplifiers (RSOAs) became a key-technology for the implementation of next generation local area passive optical networks (PONs). In this letter, we present a semi-analytic study of their nonlinear dynamics, based on the derivation of a reduced model that gives the input-output RSOA transmission function as the solution ...
ANTONELLI, CRISTIAN, MECOZZI, ANTONIO
openaire +2 more sources