公开(公告)号：US20090303475A1

公开(公告)日：2009-12-10

申请号：US12157142

申请日：2008-06-06

Applicant: Vijaysekhar Jayaraman ,  Timothy Andrew Strand ,  Devin Blaine Leonard

Inventor： Vijaysekhar Jayaraman ,  Timothy Andrew Strand ,  Devin Blaine Leonard

IPC: G02B6/02 ,  G01J3/42 ,  H01L21/58

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0259 ,  G02B6/1221 ,  G02B6/4203

Abstract: The invention discloses a multi-wavelength semiconductor light source comprising a plurality of semiconductor light sources mounted on a silicon sub-carrier and emitting radiation spanning a wavelength range. In preferred embodiments, these sources are configured in a linear and circular array. The radiation is coupled to a waveguide array disposed on the same silicon subcarrier, with a lower cladding of silicon dioxide and deposited core layer which is preferably the spin-on epoxy resin SU-8. Output from the waveguide array provides a compact multi-wavelength laser source with wide tuning range via a plurality of laser sources. An output spatial span of the waveguide array is smaller than an input spatial span and sufficiently small to probe the properties of a sample. A compact system for optical spectroscopy is constructed from the multi-wavelength semiconductor light source, a means for directing radiation from the source to a sample, and an optical detector configured to detect one of a radiation reflected from and transmitted through said sample. In various preferred embodiments, the semiconductor light sources can comprise lasers, light-emitting diodes, and superluminescent diodes.The system for optical spectroscopy can be used in a variety of applications including the analysis of in-vivo human tissue, agricultural samples, and pharmaceutical samples. Typical wavelength ranges for these and other applications include 650-1000 nm, 700-1700 nm, and 1100-2500 nm.

Abstract translation: 本发明公开了一种多波长半导体光源，其包括安装在硅副载体上并发射跨越波长范围的辐射的多个半导体光源。 在优选实施例中，这些源被配置成线性和圆形阵列。 辐射耦合到设置在相同的硅子载波上的波导阵列，其中二氧化硅的下包层和沉积的芯层，其优选是旋涂环氧树脂SU-8。 来自波导阵列的输出通过多个激光源提供具有宽调谐范围的紧凑的多波长激光源。 波导阵列的输出空间跨度小于输入空间跨度，足够小以探测样品的性质。 用于光学光谱的紧凑系统由多波长半导体光源构成，用于将来自源的辐射引导到样本的装置，以及被配置为检测从所述样品反射并透过所述样品的辐射中的一种的光学检测器。 在各种优选实施例中，半导体光源可以包括激光器，发光二极管和超发光二极管。 光谱学系统可用于各种应用，包括体内人体组织，农业样品和药物样品的分析。 这些和其他应用的典型波长范围包括650-1000nm，700-1700nm和1100-2500nm。

公开(公告)号：US07880882B2

公开(公告)日：2011-02-01

申请号：US12157142

申请日：2008-06-06

Applicant: Vijaysekhar Jayaraman ,  Timothy Andrew Strand ,  Devin Blaine Leonard

Inventor： Vijaysekhar Jayaraman ,  Timothy Andrew Strand ,  Devin Blaine Leonard

IPC: G01N21/25

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0259 ,  G02B6/1221 ,  G02B6/4203

Abstract: The invention discloses a system for optical spectroscopy comprising a multi-wavelength semiconductor light source comprising a plurality of semiconductor light sources disposed on a silicon sub-carrier and emitting a plurality of radiation components spanning a wavelength range. The radiation components are coupled to a waveguide array disposed on the same silicon subcarrier. Output from the waveguide array provides a compact multi-wavelength laser source with wide tuning range via a plurality of laser sources. The system further comprises means for directing radiation components to a sample, and an optical detector configured to detect one of a radiation reflected from and transmitted through said sample. The system can be used in a variety of applications including the analysis of in-vivo human tissue, agricultural samples, and pharmaceutical samples. Typical wavelength ranges are 650-1000 nm, 700-1700 nm, and 1100-2500 nm.

Abstract translation: 本发明公开了一种光谱学系统，其包括多波长半导体光源，该多波长半导体光源包括设置在硅副载体上的多个半导体光源，并且发射多个辐射成分，该辐射成分跨越波长范围。 辐射分量耦合到设置在同一硅子载波上的波导阵列。 来自波导阵列的输出通过多个激光源提供具有宽调谐范围的紧凑的多波长激光源。 该系统还包括用于将辐射分量引导到样本的装置，以及被配置为检测从所述样品反射和透射的辐射中的一种的光学检测器。 该系统可用于各种应用，包括体内人体组织，农业样品和药物样品的分析。 典型的波长范围是650-1000nm，700-1700nm和1100-2500nm。