Results 21 to 30 of about 449,684 (296)
Photonics, 2022 A systematic treatment of the influence of the optical feedback (OFB) and the ratio of the radiative and the non-radiative recombination lifetime (τr/τnr) on the relative intensity noise (RIN) and the system dynamics of a semiconductor laser (SL) is ...
Salah Abdulrhmann +2 more
doaj +1 more source
Linewidth reduction and frequency stabilization of a semiconductor laser with a combination of FM sideband locking and optical feedback [PDF]
, 1993 We describe a novel method for semiconductor laser noise reduction that uses a combination of optical and electronic feedback. A Doppler-free Faraday resonance in Cs vapor provided both optical feedback and discrimination for an electronic feedback ...
Kitching, J., Shevy, Y., Yariv, A.
core +1 more source
Nanophotonics, 2021 The new paradigm of parity-time symmetry in quantum mechanics has readily been applied in the field of optics with numerous demonstrations of exotic properties in photonic systems.
Brac de la Perrière Vincent +4 more
doaj +1 more source
Opto-electronic high order feedback neural network [PDF]
, 1990 A novel neural network design, in which nonlinearities are created by feedback, is described. It is called the HOFNET. The design is suitable for optical implementation because it is tolerant of the limited dynamic ranges present in optical systems.
Mao, Z.Q. +2 more
core +1 more source
SELF-MIXING LASER VIBROMETER WITH RESOLUTION IN THE MICRO AND NANO METERS SCALE
Anales (Asociación Física Argentina), 2021 We present the development of an interferometer capable of making contactless measurements of vibrations. The results show the we achieve micro- and/or nano-metric measurements without the stabilization of the laser.
L. E. Filgueira, C. T. Schmiegelow
doaj +1 more source
Delayed feedback control of self-mobile cavity solitons [PDF]
, 2013 Control of the motion of cavity solitons is one the central problems in nonlinear optical pattern formation. We report on the impact of the phase of the time-delayed optical feedback and carrier lifetime on the self-mobility of localized structures of ...
Gurevich, S. V. +5 more
core +4 more sources
Self-aligned setup for laser optical feedback imaging insensitive to parasitic optical feedback [PDF]
Applied Optics, 2008 In this paper we propose a new optical architecture for the laser optical feedback imaging (LOFI) technique which makes it possible to avoid the adverse effect of the optical parasitic backscattering introduced by all the optical interfaces located between the laser source and the studied object.
Jacquin, Olivier +3 more
openaire +4 more sources
Quantum feedback control of atomic motion in an optical cavity [PDF]
, 2003 We study quantum feedback cooling of atomic motion in an optical cavity. We design a feedback algorithm that can cool the atom to the ground state of the optical potential with high efficiency despite the nonlinear nature of this problem.
Bhattacharya, Tanmoy +4 more
core +2 more sources
Feedback Cooling of a Single Neutral Atom [PDF]
, 2010 We demonstrate feedback cooling of the motion of a single rubidium atom trapped in a high-finesse optical resonator to a temperature of about 160 \mu K. Time-dependent transmission and intensity-correlation measurements prove the reduction of the atomic ...
Apel, Matthias +7 more
core +9 more sources
Optical phase synchronization in coherent optical beamformers for phased array receive antennas [PDF]
, 2009 An optical phase synchronization system using a power feedback loop technique is experimentally demonstrated. The system allows coherent combining of signals modulated on the same optical carrier in a hybrid optical beam forming system ...
Burla, M. +7 more
core +3 more sources