Results 41 to 50 of about 319,656 (388)

Detailed Theoretical Model for Adjustable Gain-Clamped Semiconductor Optical Amplifier

open access: yesInternational Journal of Optics, 2012
The adjustable gain-clamped semiconductor optical amplifier (AGC-SOA) uses two SOAs in a ring-cavity topology: one to amplify the signal and the other to control the gain.
Lin Liu   +3 more
doaj   +1 more source

Enhanced optical frequency comb generation by pulsed gain-switching of optically injected semiconductor lasers.

open access: yesOptics Express, 2019
We report on the experimental generation of broad and flat optical frequency combs (OFC) in a 1550 nm laser diode using gain switching with pulsed electrical excitation together with optical injection.
A. Rosado   +5 more
semanticscholar   +1 more source

Observation of gain-pinned dissipative solitons in a microcavity laser

open access: yesAPL Photonics, 2020
We demonstrate an experimental approach for creating spatially localized states in a semiconductor microcavity laser. In particular, we shape the spatial gain profile of a quasi-one-dimensional microcavity laser with a nonresonant, pulsed optical pump to
M. Pieczarka   +6 more
doaj   +1 more source

Complete characterization of ultrashort pulse sources at 1550 nm [PDF]

open access: yes, 1999
This paper reviews the use of frequency-resolved optical gating (FROG) to characterize mode-locked lasers producing ultrashort pulses suitable for high-capacity optical communications systems at wavelengths around 1550 nm, Second harmonic generation (SHG)
Barry, Liam P.   +6 more
core   +1 more source

Impact of signal wavelength on the semiconductor opticalamplifier gain uniformity for high speed optical routers employing the segmentation model [PDF]

open access: yes, 2010
This paper investigates the impact of a train of input Gaussian pulses wavelength on semiconductor optical amplifier (SOA) gain uniformity for high speed applications. In high speed applications, the linear output gain of the input pulses is necessary in
Abd El Aziz, Ahmad   +5 more
core   +2 more sources

100-Gb/s 3R Regeneration With Cross Gain Compression in Semiconductor Optical Amplifiers

open access: yesIEEE Photonics Journal, 2016
All optical 3R regeneration of 100-Gb/s return-to-zero on-off-keying (OOK) signal based on cross gain compression effect using semiconductor optical amplifiers is experimentally demonstrated for the first time.
Xin Chen, Li Huo, Qiang Wang, Caiyun Lou
doaj   +1 more source

Giant Modal Gain, Amplified Surface Plasmon Polariton Propagation, and Slowing Down of Energy Velocity in a Metal-Semiconductor-Metal Structure

open access: yes, 2009
We investigated surface plasmon polariton (SPP) propagation in a metal-semiconductor-metal structure where semiconductor is highly excited to have optical gain. We show that near the SPP resonance, the imaginary part of the propagation wavevector changes
C. Z. Ning   +5 more
core   +1 more source

Performance analysis of 2R optical regeneration by cross gain compression using multiple quantum well semiconductor optical amplifiers

open access: yesDyna, 2017
This paper presents the performance analysis of a system configuration for 2R optical regeneration (re-amplification and re-shaping), which is based on Cross-Gain Compression (XGC) and Cross-Gain Modulation (XGM), which is configured on a Multiple ...
Victor H. Perilla-Martinez   +2 more
doaj   +1 more source

An optical parametric Bragg amplifier on a CMOS chip

open access: yesNanophotonics, 2021
We demonstrate a complementary metal–oxide–semiconductor (CMOS)-compatible optical parametric Bragg amplifier on an ultra-silicon-rich nitride chip. The amplifier design incorporates advantageous group index properties in a nonlinear Bragg grating to ...
Choi Ju Won   +7 more
doaj   +1 more source

Pump-probe detuning dependence of four-wave mixing pulse in an SOA [PDF]

open access: yes, 2007
Four-wave mixing (FWM) between 2-ps pulses in a multiquantum-well semiconductor optical amplifier (SOA) is presented. The conjugate pulses are fully characterized using the frequency-resolved optical gating technique.
Barry, Liam P.   +2 more
core   +1 more source

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