Data compressed photonic time-stretch optical coherence tomography

Mididoddi, Chaitanya K.; Wang, Guoqing; Wang, Chao

doi:10.1109/ipcon.2016.7830959

Cited by 7 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The original sparse signal can be reconstructed from far fewer samples by optimization. The effort of implement CS has been successfully achieved in single-pixel imaging [13], digital signal processing [14], radio frequency (RF) signal measurement [15], laser scanning microscopy [16], optical coherence tomography (OCT) [17,18], photonic time-stretch ADC [19,20] and quantum communication [21].…”

Section: Introductionmentioning

confidence: 99%

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

et al. 2021

Self Cite

View full text Add to dashboard Cite

An undersampling free-space optical (FSO) communication system based on compressive sensing (CS) and in-fiber grating is proposed. Our proposal drastically mitigates the data scale unfavorable issue and reduces the great amount of required data. Also, our proposal employs low-bandwidth and low-cost photodetectors (PDs) and analog-to-digital converters (ADCs) and decreases the cost of data detection. Besides, the data transmitted in the free space is encrypted, which enhances the security of the system. The in-fiber grating, which has the advantage of highly efficient thanks to its inherent compatibility with optical fiber links, plays the roles of light emitter, in-fiber polarizer, and light diffraction device, simultaneously. A sinusoidal radio frequency (RF) signal with a frequency of 1 GHz is utilized for a 2.4 m data transmission. And each PD with a bandwidth of 300 MHz is employed for detecting the transmitted signal on each channel. The proposal obtains data compression ratios of 25%, 15%, and 5% both in the temporal domain and frequency domain. Besides, a two-tone signal and a random RF signal are applied in the proposed FSO transmission for data transmission. Our proposal not only has the merits of secure, compact, stable, and highly efficient, but also has great potential in extremely secure situations, such as secured indoor and under water data communication.

show abstract

Section: Introductionmentioning

confidence: 99%

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…There has been a demonstration of compressive sensing to study the effectiveness in optical coherence tomography system by direct sampling the OCT data with SD-OCT method followed by digital compressive sensing approach 14 . In this work, we reported and experimentally demonstrated data efficient PTS-OCT system based on photonic compressive sensing achieving 66% compression ratio with A-scan rate of 1.51MHz for a single layer measurement 15,16 . Figure 1 shows the schematic diagram of the proposed system.…”

Section: Introductionmentioning

confidence: 99%

Photonic compressive sensing enabled data efficient time stretch optical coherence tomography

Mididoddi

Wang

2018

2nd Canterbury Conference on OCT With Emphasis on Broadband Optical Sources

Self Cite

View full text Add to dashboard Cite

Photonic time stretch (PTS) has enabled real time spectral domain optical coherence tomography (OCT). However, this method generates a torrent of massive data at GHz stream rate, which requires capturing as per Nyquist principle. If the OCT interferogram signal is sparse in Fourier domain, which is always true for samples with limited number of layers, it can be captured at lower (sub-Nyquist) acquisition rate as per compressive sensing method. In this work we report a data compressed PTS-OCT system based on photonic compressive sensing with 66% compression with low acquisition rate of 50MHz and measurement speed of 1.51MHz per depth profile. A new method has also been proposed to improve the system with all-optical random pattern generation, which completely avoids electronic bottleneck in traditional binary pseudorandom binary sequence (PRBS) generators.

show abstract

Data-efficient high-throughput fiber Bragg grating sensors using photonic time-stretch compressive sensing

Mididoddi

Ahmad

Wang

2017

2017 Conference on Lasers and Electro-Optics Europe &Amp; European Quantum Electronics Conference (CLEO/Europe-EQEC)

View full text Add to dashboard Cite

Data compressed photonic time-stretch optical coherence tomography

Cited by 7 publications

References 6 publications

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

Photonic compressive sensing enabled data efficient time stretch optical coherence tomography

Data-efficient high-throughput fiber Bragg grating sensors using photonic time-stretch compressive sensing

Contact Info

Product

Resources

About