Dual-Band Time-Multiplexing Swept-Source Optical Coherence Tomography Based on Optical Parametric Amplification

Zhu, Rui; Xu, Jianbing; Zhang, Chi; Chan, Aaron C.; Li, Qin; Chui, P. C.; Lam, Edmund Y.; Wong, Kenneth K. Y.

doi:10.1109/jstqe.2011.2167132

Cited by 15 publications

(19 citation statements)

References 20 publications

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“…The experimental setup used for in vivo OOCT imaging based on the proposed FDML, as shown in Fig. 2(b) has been previously described elsewhere [9]. The sensitivity roll-off characteristic, which was determined by the backreflected signal amplitude from a single mirror reflection, is depicted in Fig.…”

Section: Resultsmentioning

confidence: 99%

In vivo OCT imaging based on La-codoped bismuth-based erbium-doped fiber

Xu¹,

Ou²,

Wang³

et al. 2013

2013 IEEE Photonics Conference

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Section: Resultsmentioning

confidence: 99%

In vivo OCT imaging based on La-codoped bismuth-based erbium-doped fiber

Xu¹,

Ou²,

Wang³

et al. 2013

2013 IEEE Photonics Conference

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“…The swept-source OCT system is basically a Michelson interferometer composed of a broadband 70/30 fiber OC. Because the dual-band output comes from a single output port, there is no need to make an additional sample arm (or probe) to expose two beams (both 1310 and 1550 nm bands) into the common sample simultaneously, unlike the other dual-band SS-OCT system [10], [12]. Therefore, after inducing most of the optical interference signals, the final stage of the optical signals are simply divided using a wavelength division multiplexing coupler (WDMC) and detected by two photo-detectors (1817-FC, New Focus) simultaneously.…”

Section: Optical Coherence Tomography Based On Dual-band Wavelengtmentioning

confidence: 99%

“…Many different kinds of dual-band lasers have been proposed, but most of their schemes consist of two gain regions and a wavelength-selecting filter in the laser cavity [11]- [13]. For example, in the case of a dual-band wavelength-swept FDML fiber laser, the FFP-TF is inserted into the cavity to sweep each wavelength-band [11], [12]. It is not easy to tune a dual channel driver for the two FFP-TFs for simultaneous oscillation in the ring cavities of both bands [11].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Dual-Band Wavelength-Swept Fiber Laser Based on Active Mode Locking

Lee

Chen

Jeong

et al. 2014

IEEE Photon. Technol. Lett.

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Abstract-We report a simultaneous dual-band wavelengthswept laser based on the active mode locking method. By applying a single modulation signal, synchronized sweeping of two lasing-wavelengths is demonstrated without the use of a mechanical wavelength-selecting filter. Two free spectral ranges are independently controlled with a dual path-length configuration of a laser cavity. The static and dynamic performances of a dual-band wavelength-swept active mode locking fiber laser are characterized in both the time and wavelength regions. Two lasing wavelengths were swept simultaneously from 1263.0 to 1333.3 nm for the 1310 nm band and from 1493 to 1563.3 nm for the 1550 nm band. The application of a dual-band wavelengthswept fiber laser was also demonstrated with a dual-band optical coherence tomography imaging system.

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“…To date, OCT technology has been through three generations: time-domain OCT (TD-OCT), spectral-domain OCT (SD-OCT), and swept-source OCT (SS-OCT) [4, 5]. Resolution of an OCT system has been improved from 10 ∼ 20 μ m to several μ m. Data acquisition speed has also increased from 2 A-lines per second in 1991 to 480,000 A-lines per second in 2011 [6].…”

Section: Introductionmentioning

confidence: 99%

Image reconstruction from nonuniformly spaced samples in spectral-domain optical coherence tomography

Ke¹,

Lam²

2012

Biomed. Opt. Express

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In spectral-domain optical coherence tomography (SD-OCT), data samples are collected nonuniformly in the wavenumber domain, requiring a measurement re-sampling process before a conventional fast Fourier transform can be applied to reconstruct an image. This re-sampling necessitates extra computation and often introduces errors in the data. Instead, we develop an inverse imaging approach to reconstruct an SD-OCT image. We make use of total variation (TV) as a constraint to preserve the image edges, and estimate the two-dimensional cross-section of a sample directly from the SD-OCT measurements rather than processing for each A-line. Experimental results indicate that compared with the conventional method, our technique gives a smaller noise residual. The potential of using the TV constraint to suppress sensitivity falloff in SD-OCT is also demonstrated with experiment data.

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Dual-Band Time-Multiplexing Swept-Source Optical Coherence Tomography Based on Optical Parametric Amplification

Cited by 15 publications

References 20 publications

In vivo OCT imaging based on La-codoped bismuth-based erbium-doped fiber

In vivo OCT imaging based on La-codoped bismuth-based erbium-doped fiber

Simultaneous Dual-Band Wavelength-Swept Fiber Laser Based on Active Mode Locking

Image reconstruction from nonuniformly spaced samples in spectral-domain optical coherence tomography

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