Orthogonal geometry of wave interaction in a photorefractive crystal for linear phase demodulation

S Di Girolamo, RV Romashko, YN Kulchin… - Optics …, 2010 - Elsevier
… and vertically polarized components in the depolarized object wave emerging from the MMF,
the linear phase demodulation is cancelled for such a wave in the typical VWM geometry. …

Orthogonal phase demodulation of optical fiber Fabry-Perot interferometer based on birefringent crystals and polarization technology

Y Huang, S Wang, J Jiang, K Liu, X Zhang… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
… , the orthogonal signals are … demodulate the orthogonal signals to obtain the phase variation
of the optical fiber FP sensor. The proposed interferometer has a minimum detection phase

Linear phase demodulation via reflection photorefractive holograms

RV Romashko, YN Kulchin… - … Effects, Materials, and …, 2005 - opg.optica.org
Geometry in which anisotropic diffraction occurs was chosen. The linear phase demodulation
occurs because the inherent π/2 phase difference between orthogonal components of …

[PDF][PDF] Linear phase demodulation via orthogonal geometry of waves interaction in photorefractive CdTe: V

S Di Girolamo, RV Romashko, YN Kulchin… - Proceedings PR - researchgate.net
… We explain the possibility to perform the linear phase demodulation of the unpolarized … not
record the dynamic hologram in the orthogonal geometry of beam interaction. More detailed …

Reliability demodulation algorithm design for phase generated carrier signal

C Hou, J Zhang, Y Yuan, J Yang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
… Aiming at the problem that two-channel maxing signals are not orthogonal, this article
introduces a nonlinear correction module and proposes an improved PGC-Arctan-GNI algorithm to …

Frequency/phase movement analysis by orthogonal demodulation [mixed signal SOC testing]

H Okawara - Proceedings. International Test Conference, 2002 - ieeexplore.ieee.org
… In this paper, the precise procedure of the measurement and calculation by using orthogonal
demodulation is described. It can be achieved with very simple mathematical operations, …

Fast differential unitary space-time demodulation via square orthogonal designs

XB Liang, XG Xia - IEEE transactions on wireless …, 2005 - ieeexplore.ieee.org
orthogonal designs for multiple transmit antennas in the maximum-likelihood differential
unitary space–time demodulator. It … the real or complex square orthogonal designs [23] and the …

A simple, linearized, phase-modulated analog optical transmission system

BM Haas, TE Murphy - IEEE Photonics Technology Letters, 2007 - ieeexplore.ieee.org
phase shift that is linearly proportional to the applied field. Unfortunately, phase demodulation
… of this anisotropy to simultaneously phase modulate two orthogonal polarization states by …

Application of orthogonal codes to the calibration of active phased array antennas for communication satellites

SD Silverstein - IEEE transactions on signal processing, 1997 - ieeexplore.ieee.org
… detection of demodulated signals. The noise at the receiver prior to demodulation can be …
The noise model after demodulation must be modified because the demodulation process …

Phase-diversity homodyne detection of multilevel optical modulation with digital carrier phase estimation

K Kikuchi - IEEE Journal of Selected Topics in Quantum …, 2006 - ieeexplore.ieee.org
Orthogonal states of polarization for the LO and the incoming signal create the 90 ◦ hybrid
necessary for phase … the QPSK signal is demodulated by our phase-estimation scheme on the …