Results 51 to 60 of about 269,167 (165)

Suppression of Intensity and Frequency Noise at Low-Sensitivity Operating Points of Period-One Dynamics of Optically Injected Semiconductor Lasers

open access: yesIEEE Access, 2019
Period-one (P1) dynamics induced by an optically injected semiconductor laser oscillate at microwave frequencies. The oscillation frequency of a P1 dynamic can be rendered nearly insensitive to small-signal parameter fluctuations and intrinsic laser ...
Mohammad A. Almulla, Jia-Ming Liu
doaj   +1 more source

Tailoring the properties of quantum dot-micropillars by ultrafast optical injection of free charge carriers. [PDF]

open access: yesLight Sci Appl, 2021
Peinke E   +8 more
europepmc   +1 more source

Optical injection unlocking for cavity ringdown spectroscopy

open access: yesOptics Letters, 2014
Continuous wave cavity ringdown spectroscopy requires a rapid termination of the injection of light into the cavity to initiate the decay (i.e., ringdown) event. We demonstrate a technique that accomplishes this through pulsed optical injection of a second laser into the main laser, resulting in 20-100 MHz frequency shifts in the otherwise cavity ...
Bostrom, Gregory A.   +2 more
openaire   +3 more sources

Multi-Channel Physical Random Bits Generation Using a Vertical-Cavity Surface-Emitting Laser Under Chaotic Optical Injection

open access: yesIEEE Access, 2018
We experimentally demonstrate multi-channel physical random bits (PRBs) generation by utilizing chaotic outputs from two linear polarization modes in a vertical-cavity surface-emitting laser (VCSEL) under a chaotic optical injection.
Xi Tang   +7 more
doaj   +1 more source

High-Resolution Chaos Maps for Optically Injected Lasers

open access: yesApplied Sciences
Deterministic chaos in optically injected semiconductor lasers (OILs) has attracted significant attention due to its relevance in secure communications, entropy generation, and photonic applications. However, existing studies often rely on low-resolution
Gerardo Antonio Castañón Ávila   +3 more
doaj   +1 more source

Mode Suppression in Injection Locked Multi-Mode and Single-Mode Lasers for Optical Demultiplexing

open access: yesPhotonics, 2019
Optical injection locking has been demonstrated as an effective filter for optical communications. These optical filters have advantages over conventional passive filters, as they can be used on active material, allowing them to be monolithically ...
Kevin Shortiss   +5 more
doaj   +1 more source

Centralized-Light-Source Two-Way PAM8/PAM4 FSO Communications With Parallel Optical Injection Locking Operation

open access: yesIEEE Access, 2019
For the first time up to our knowledge, a centralized-light-source two-way eight-level pulse amplitude modulation (PAM8)/four-level pulse amplitude modulation (PAM4) free-space optical (FSO) communication with parallel optical injection-locked vertical ...
Wen-Shing Tsai   +4 more
doaj   +1 more source

Research on Continuous Injection Direct Rolling Process for PMMA Optical Plate

open access: yesAdvances in Mechanical Engineering, 2014
Continuous injection direct rolling (CIDR) combined intermittent injection and rolling process is a new technology for molding optical polymer plates with microstructured patterns; research on forming PMMA optical plates is an aspect of it in this paper.
HaiXiong Wang   +4 more
doaj   +1 more source

Target Detection Using Fused Unidentical Photonics-Based LFM Sub-Band Radar Signals With an Adaptive Feed Forward Network Equalizer

open access: yesIEEE Access
To address the challenges of costly frontend high frequency opto-electronics devices and the requirement of high bandwidth for improved range, resolution several band fusion techniques are proposed in this work.
Bikash Nakarmi   +8 more
doaj   +1 more source

in a semiconductor laser with optical injection

open access: yesPhysical Review Letters, 2002
A deterministic mechanism for multipulse excitability that appears to be experimentally accessible in a real laser is presented. Codimension-two homoclinic Belyakov bifurcations and an ensuing cascade of n-homoclinic bifurcation tongues are described as responsible for this phenomenon.
Wieczorek, S.   +2 more
openaire   +1 more source

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