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Linewidth of swept laser source
SPIE Proceedings, 2012In this work we study the factors affecting the linewidth of a swept laser source. A ring fiber laser source based on EDFA and a Fabry-Perort resonator is used for this purpose. With this setup a swept source with a linewidth of better than 0.1 nm is obtained over a tuning range of about 47 nm limited by the spectral gain of the EDFA amplifier used ...
Haitham Omran +3 more
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A swept-frequency implosive source
The Journal of the Acoustical Society of America, 2004Implosive underwater sound sources, such as the 20-liter single-shot device we have constructed, generally emit a rarefaction followed by a compression when the implosion is complete. Some purposes, however, are better served by a swept-frequency, rather than an impulsive, signature, since the lower peak pressures of the swept source are less likely to
LeRoy M. Dorman, Allan W. Sauter
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2017
Glaucoma is a leading cause of blindness worldwide [1]. It is defined as a group of progressive optic neuropathies with characteristic retinal ganglion cell damage at the optic disc and a concomitant pattern of visual field loss [2]. Structural measurements have become more important for glaucoma diagnosis and follow-up.
Kaweh Mansouri +2 more
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Glaucoma is a leading cause of blindness worldwide [1]. It is defined as a group of progressive optic neuropathies with characteristic retinal ganglion cell damage at the optic disc and a concomitant pattern of visual field loss [2]. Structural measurements have become more important for glaucoma diagnosis and follow-up.
Kaweh Mansouri +2 more
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Swept-Source Optical Coherence Tomography–Supervised Biopsy
Dermatologic Surgery, 2018BACKGROUND Currently, only skin biopsy can provide definitive histological confirmation for the diagnosis of skin diseases. To improve the diagnostic accuracy and to assist the dermatologist, various imaging techniques have been added to the examination of skin.
Qiuyun, Xu +5 more
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Towards swept-source mid-infrared OCT
Biophotonics: Photonic Solutions for Better Health Care VI, 2018A swept-source optical coherence tomography (OCT) system is demonstrated in the mid-infrared region. A Michelson interferometric setup is illuminated by an external cavity quantum cascade laser (QCL), with a scanning frequency of 1 Hz. A-scans were collected using three different samples: a mirror, CaF2 coated with germanium on both of its surfaces ...
Dmitry Revin +3 more
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Swept-Source Optical Coherence Tomography
2016In the two decades since optical coherence tomography (OCT) was first described (Huang et al. 1991), this technology has played essential roles in ophthalmology as well as other branches of medicine. The technology has been adapted to produce noninvasive, high-resolution images of both the anterior segment (cornea and structures at the angles) and ...
Colin S. Tan, SriniVas R. Sadda
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Introduction to Swept Source OCT
2017Optical coherence tomography (OCT), first introduced in 1991, is an enabling optical, noninvasive imaging modality that provides cross-sectional visualization of biological tissues with resolutions one to two orders of magnitude better than conventional ultrasound [1].
Zhenguo Wang +3 more
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Swept Source OCT in Pseudodrusen
2017Pseudodrusen are pathological deposits that locate in the outer retinal layer. Unlike hard drusen and soft drusen, which are normally observed outside the retina pigment epithelium (RPE) layer, pseudodrusen are detected in the photoreceptor layer of the retina on swept source optical coherence tomography (SS-OCT) images.
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Intraocular Tumors Using Swept Source OCT
2017Swept source optical coherence tomography (SS-OCT) permits a complementary study of retinal and choroidal lesions and diseases, including intraocular tumors. Due to the longer wavelength (1050 nm) employed, SS-OCT allows the visualization of the internal configuration of the tumors, and even the extent of the lesion in small and medium tumors, up to a ...
Ignacio Flores-Moreno +4 more
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Nanofluidics for osmotic energy conversion
Nature Reviews Materials, 2021, Liping Wen, Lei Jiang
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