Apparatus and methods for one or more wavelength swept lasers and the detection of signals thereof

    公开(公告)号:US10234267B2

    公开(公告)日:2019-03-19

    申请号:US15885754

    申请日:2018-01-31

    摘要: An optical instrument including at least a first and second wavelength swept vertical cavity laser (VCL) sources. The wavelength sweeping ranges spanned by the first and second VCL sources may differ with a region of spectral overlap. The first and second VCL sources may be operable under different modes of operation, wherein the modes of operation differ in at least one of: sweep repetition rate, sweep wavelength range, sweep center wavelength, and sweep trajectory. A VCL source may also exhibit sweep-to-sweep variation. Apparatus and methods are described for aligning sample signal data from the first VCL and sample signal data from the second VCL to generate output digital data. The output digital data is aligned with respect to at least one of: wavelength, wavenumber, and interferometric phase. The apparatus and methods can also be used to phase stabilize successive sweeps from the same VCL source or wavelength swept source.

    APPARATUS AND METHODS FOR ONE OR MORE WAVELENGTH SWEPT LASERS AND THE DETECTION OF SIGNALS THEREOF
    7.
    发明申请
    APPARATUS AND METHODS FOR ONE OR MORE WAVELENGTH SWEPT LASERS AND THE DETECTION OF SIGNALS THEREOF 有权
    一种或多种波长扫描激光的装置和方法及其信号的检测

    公开(公告)号:US20170074640A1

    公开(公告)日:2017-03-16

    申请号:US15265429

    申请日:2016-09-14

    IPC分类号: G01B9/02 H01S5/42

    摘要: An optical instrument including at least a first and second wavelength swept vertical cavity laser (VCL) sources. The wavelength sweeping ranges spanned by the first and second VCL sources may differ with a region of spectral overlap. The first and second VCL sources may be operable under different modes of operation, wherein the modes of operation differ in at least one of: sweep repetition rate, sweep wavelength range, sweep center wavelength, and sweep trajectory. A VCL source may also exhibit sweep-to-sweep variation. Apparatus and methods are described for aligning sample signal data from the first VCL and sample signal data from the second VCL to generate output digital data. The output digital data is aligned with respect to at least one of: wavelength, wavenumber, and interferometric phase. The apparatus and methods can also be used to phase stabilize successive sweeps from the same VCL source or wavelength swept source.

    摘要翻译: 一种光学仪器,包括至少第一和第二波长扫描垂直腔体激光器(VCL)源。 由第一和第二VCL源跨越的波长扫描范围可以随着光谱重叠的区域而不同。 第一和第二VCL源可以在不同的操作模式下操作,其中操作模式在以下至少一个方面不同:扫描重复率,扫描波长范围,扫描中心波长和扫描轨迹。 VCL源也可能具有扫掠到扫描的变化。 描述了用于对准来自第一VCL的采样信号数据和来自第二VCL的采样信号数据以产生输出数字数据的装置和方法。 输出数字数据相对于波长,波数和干涉相位中的至少一个对准。 该装置和方法也可用于相位稳定来自相同VCL源或波长扫描源的连续扫描。

    AGILE IMAGING SYSTEM
    10.
    发明申请
    AGILE IMAGING SYSTEM 审中-公开
    AGILE成像系统

    公开(公告)号:US20140028997A1

    公开(公告)日:2014-01-30

    申请号:US13952574

    申请日:2013-07-26

    IPC分类号: G01B9/02

    摘要: An agile optical imaging system for optical coherence tomography imaging using a tunable source comprising a wavelength tunable VCL laser is disclosed. The tunable source has long coherence length and is capable of high sweep repetition rate, as well as changing the sweep trajectory, sweep speed, sweep repetition rate, sweep linearity, and emission wavelength range on the fly to support multiple modes of OCT imaging. The imaging system also offers new enhanced dynamic range imaging capability for accommodating bright reflections. Multiscale imaging capability allows measurement over orders of magnitude dimensional scales. The imaging system and methods for generating the waveforms to drive the tunable laser in flexible and agile modes of operation are also described.

    摘要翻译: 公开了一种用于使用包括波长可调VCL激光器的可调谐源的光学相干断层摄影成像的敏捷光学成像系统。 可调谐源具有长相干长度,能够实现高扫描重复率,以及在飞行中更改扫描轨迹,扫描速度,扫描重复率,扫描线性度和发射波长范围,以支持多种OCT成像模式。 成像系统还提供新的增强的动态范围成像功能,以适应明亮的反射。 多尺度成像能力允许在数量级尺寸尺度上进行测量。 还描述了用于产生波形以驱动柔性和敏捷操作模式的可调谐激光器的成像系统和方法。