Homodyne detection Laser-Induced Thermal Acoustics velocimetry

2000 ◽  
Author(s):  
Stefan Schlamp ◽  
Eunice Allen-Bradley
Keyword(s):  
Homodyne Detection

scholarly journals Spin Laser Local Oscillators for Homodyne Detection in Coherent Optical Communications

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 573
Author(s):  
Nobuhide Yokota ◽  
Hiroshi Yasaka
Keyword(s):  
Spin Polarization ◽  
Optical Communications ◽  
Injection Locking ◽  
Optical Data ◽  
Cavity Surface ◽  
Orthogonal Polarization ◽  
Linear Birefringence ◽  
Polarization Modulation ◽  
Homodyne Detection ◽  
Local Oscillators

We numerically investigate spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) for local oscillators, which are based on an injection locking technique used in coherent optical communications. Under the spin polarization modulation of an injection-locked spin-VCSEL, frequency-shifted and phase-correlated optical sidebands are generated with an orthogonal polarization against the injection light, and one of the sidebands is resonantly enhanced due to the linear birefringence in the spin-VCSEL. We determine that the peak strength and peak frequency in the spin polarization modulation sensitivity of the injection-locked spin-VCSEL depend on detuning frequency and injection ratio conditions. As a proof of concept, 25-Gbaud and 16-ary quadrature amplitude modulation optical data signals and a pilot tone are generated, and the pilot tone is used for the injection locking of a spin-VCSEL. An orthogonally-polarized modulation sideband generated from the injection-locked spin-VCSEL is used as a frequency-shifted local oscillator (LO). We verify that the frequency-shifted LO can be used for the homodyne detection of optical data signals with no degradation. Our findings suggest a novel application of spin-VCSELs for coherent optical communications.

scholarly journals Measuring continuous-variable quantum entanglement with parametric-amplifier-assisted homodyne detection

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
Jiamin Li ◽  
Yuhong Liu ◽  
Nan Huo ◽  
Liang Cui ◽  
Sheng Feng ◽  
...  
Keyword(s):  
Quantum Entanglement ◽  
Continuous Variable ◽  
Parametric Amplifier ◽  
Homodyne Detection

scholarly journals Binary homodyne detection for observing quadrature squeezing in satellite links

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Christian R. Müller ◽  
Kaushik P. Seshadreesan ◽  
Christian Peuntinger ◽  
Christoph Marquardt
Keyword(s):  
Homodyne Detection ◽  
Quadrature Squeezing ◽  
Satellite Links

Homodyne detection for the enhancement of antibunching

1996 ◽  
Vol 54 (3) ◽  
pp. 2391-2396 ◽  
Author(s):  
Reeta Vyas ◽  
Changxin Wang ◽  
Surendra Singh
Keyword(s):  
Homodyne Detection

Homodyne detection of ultrasonic surface displacements using two-wave mixing in photorefractive polymers

1999 ◽  
Author(s):  
Marvin B. Klein ◽  
Gerald D. Bacher ◽  
Anders Grunnet-Jepsen ◽  
Daniel Wright ◽  
William E. Moerner
Keyword(s):  
Wave Mixing ◽  
Homodyne Detection ◽  
Surface Displacements ◽  
Photorefractive Polymers ◽  
Two Wave Mixing

5 Gbit/s optical phase diversity homodyne detection experiment

1989 ◽  
Vol 25 (6) ◽  
pp. 400 ◽  
Author(s):  
K. Emura ◽  
R.S. Vodhanel ◽  
R. Welter ◽  
W.B. Sessa
Keyword(s):  
Homodyne Detection ◽  
Detection Experiment ◽  
Optical Phase ◽  
Phase Diversity

Simplified Homodyne Detection for Linear FM Lidar

2008 ◽  
Vol 1076 ◽  
Author(s):  
Peter Adany ◽  
Chris Allen ◽  
Rongqing Hui
Keyword(s):  
Field Experiment ◽  
Local Oscillator ◽  
Homodyne Detection ◽  
Lidar System ◽  
Receiver Sensitivity ◽  
Sensitivity Estimation

ABSTRACTA fiber based lidar system is developed which simplifies the processing of linear FM pulses by using a modulated local oscillator power in the coherent detector. Experiments were conducted on lidar systems with direct, heterodyne and simplified homodyne detection to compare receiver sensitivity. A field experiment using the homodyne system verified the sensitivity estimation on a building target at 370-m range.

scholarly journals Quantum theory of optical feedback via homodyne detection

1993 ◽  
Vol 70 (5) ◽  
pp. 548-551 ◽  
Author(s):  
H. M. Wiseman ◽  
G. J. Milburn
Keyword(s):  
Quantum Theory ◽  
Optical Feedback ◽  
Homodyne Detection

scholarly journals Balanced homodyne detection with high common mode rejection ratio based on parameter compensation of two arbitrary photodiodes

2015 ◽  
Vol 23 (18) ◽  
pp. 23859 ◽  
Author(s):  
Xiaoli Jin ◽  
Jing Su ◽  
Yaohui Zheng ◽  
Chaoyong Chen ◽  
Wenzhe Wang ◽  
...  
Keyword(s):  
Homodyne Detection ◽  
Common Mode ◽  
Common Mode Rejection Ratio ◽  
Rejection Ratio ◽  
Parameter Compensation
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