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Moiré fringe measurement system of optical length modulation based on FPGA
2010 Edition, July 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A novel method for measuring moiré fringe is proposed according to moiré fringe characteristics in each interference region of double grating interferometer. Moiré fringe pattern in Talbot image region II only shifts with the thickness of...

Vision-Based Measurement System for Instantaneous Rotational Speed Monitoring Using Linearly Varying-Density Fringe Pattern
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The instantaneous rotational speed (IRS) of a rotating machine is key information to understand the machine operation and diagnose the potential faults. A novel nonprojection fringe vision-based system was proposed to realize the measurement of IRS, which...

Low-frequency vibration monitoring system based on optical image phase method with different fringe patterns
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A rapid low-frequency vibration monitoring system based on fringe projection is introduced. Fourier transform profilometry is used to obtain the three-dimensional surface topography reconstruction of the vibrating object at each sampling moment. Then the height...

Modulation-Adaptive Link-Disjoint Path Selection Model for 1+1 Protected Elastic Optical Networks
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In elastic optical networks (EONs), an appropriate modulation technique is adapted according to the distance of an optical path. A robust modulation technique with large number of spectrum slots is considered for longer distance optical paths, and a...

Experimental investigation on the characteristics of all-optical modulation of optical microfiber coupler
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper, we investigate the characteristics of all-optical modulation via thermo-optic effects of an optical microfiber coupler (OMC) and the theoretical analysis and experimental results are shown. The intensity modulation and the phase...

Morphology Evaluation of Microelectronic Packaging Substrates Using Shadow Moiré Technique
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The surface quality and long-term reliability of packaging substrates in microelectronic packaging processes have become subjects of increasing concern as circuit board component density increases while the pitches of these components decrease. As a result, packaging substrate...

Fringe-Distortion-Correction for Polarized Low-Coherence Interferometry with Phosphor-Based LED
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

An interferogram distortion correction method is proposed for polarized low-coherence interferometry with the phosphor-based LED. A mathematical model of the interference fringes with distortion was established to analyze the distortion influence caused by the combined...

1.7 μm Tm/Ho-codoped all-fiber pulsed laser based on intermode-beating modulation technique
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

1.7 μm pulsed laser is of tremendous interest for biomedical imaging applications due to its low scattering loss in bio-tissues, but is relatively difficult to generate in fiber laser. In this Letter, we propose and demonstrate a compact 1.7 μm Tm/Ho-codoped fiber pulsed laser based...

A Wireless Multicarrier Communication Based on Multiple Vector Modulation on Single Optical Carrier
2019 Edition, April 1, 2019 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We propose a wireless multicarrier communication based on multiple vector modulation on single optical carrier. A flat multi-wavelength optical comb with the channel space of 10 GHz can be obtained by the microwave photonics technology. The two...

A Cost-Efficient Real-Time 25Mb/s System for LED-UOWC: Design, Channel Coding, FPGA Implementation, and Characterization
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper, we experimentally demonstrate a cost-efficient real-time FPGA based system for underwater optical wireless communication (UOWC) at a data rate up to 25Mb/s over a 10m underwater channel. The transmitter of the system employs a commercial blue...

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