公开(公告)号：US20040109166A1

公开(公告)日：2004-06-10

申请号：US10066000

申请日：2002-12-09

Applicant: Fibera, Inc.

Inventor： John C. Tsai ,  David W. Wang ,  Joseph Methe

IPC: G01B009/02

CPC classification number: G02B6/4246 ,  G02B6/29358 ,  H01S5/005 ,  H01S5/0687

Abstract: A wavelength locker having a first beam splitter to receive a light beam and separate out a portion as a sample beam; a confocal etalon to receive the sample beam and filter it into a filterization beam; a filterization photodetector to receive the filterization beam and produce a filterization signal representative of the light intensity in the filterization beam, and thus also of the light frequency in the filterization beam, sample beam, and original light beam; and a link to communicate a control signal, based on the filterization signal, to the light source producing the light beam to lock the wavelength or the frequency.

Abstract translation: 一种波长锁定器，具有第一分束器以接收光束并将一部分分离为样品光束; 共焦标准具，用于接收样品束并将其过滤成滤光束; 滤光光电检测器，用于接收滤光束并产生代表滤光束中的光强度的滤光信号，因此也产生滤光束，样品光束和原始光束中的光频率; 以及基于滤波信号将控制信号传送到产生光束的光源以锁定波长或频率的链接。

公开(公告)号：US20040149897A1

公开(公告)日：2004-08-05

申请号：US10605994

申请日：2003-11-12

Applicant: FIBERA, INC.

Inventor： John C. Tsai ,  David W. Wang

IPC: G01J001/04 ,  G01J005/08

CPC classification number: G01B11/161

Abstract: A structure analysis and defect detection system in which a laser light source provides light via optical fiber to fiber Bragg gratings that change resonant frequency as stresses change in the structure. Light at the resonant frequencies of the fiber Bragg gratings is reflected and light of other frequencies is passed. The respective reflected light is directed through a Fabry-Perot interference filter or a fiber interferometer and detected by a photodetector. If the Fabry-Perot interference filter is used, the intensity of the reflected light indicates current stress at a fiber Bragg grating. If the fiber interferometer is used, a beat frequency due to heterodyne interference in the light indicates current stress at the respective fiber Bragg grating. Comparison data for the respective characteristic in the detected light over time permits stress analysis, and comparison of such data with pre-determined limit values permits defect or failure detection.

Abstract translation: 一种结构分析和缺陷检测系统，其中激光光源通过光纤向光纤布拉格光栅提供光，当结构中的应力变化时，其改变谐振频率。 在光纤布拉格光栅的谐振频率处的光被反射并且其它频率的光通过。 相应的反射光被引导通过法布里 - 珀罗干涉滤光器或光纤干涉仪，并由光电检测器检测。 如果使用法布里 - 珀罗干涉滤波器，则反射光强度表示光纤布拉格光栅处的电流应力。 如果使用光纤干涉仪，则由于光中的外差干扰引起的拍频表示各个光纤布拉格光栅处的电流应力。 随着时间的推移，检测光中的各个特性的比较数据允许应力分析，并且将这些数据与预定极限值进行比较允许缺陷或故障检测。

公开(公告)号：US20030152127A1

公开(公告)日：2003-08-14

申请号：US10064663

申请日：2002-08-05

Applicant: Fibera, Inc.

Inventor： John C. Tsai ,  David W. Wang ,  George C.K. Chen ,  Joseph Methe

IPC: H01S003/08

CPC classification number: H01S5/0687 ,  H01S5/005 ,  H01S5/4025

Abstract: An integrated or hybrid-optical device (10) able to perform the functions of both a beam splitter and an etalon. A splitter interface (72), front-cavity interface (74), and rear-cavity interface (76) are provided and separate regions (78, 80, 82, 84) which may be of nullairnull (gas or vacuum) or solid materials. The front-cavity interface (74), the rear-cavity interface (76), and the interposed third region (82) define a Fabry Perot etalon, which may be either solid or air-spaced. In particular, the integrated optical device (10) has only the second region (80) interposed between the splitter interface (72) and the front-cavity interface (74).

Abstract translation: 能够执行分束器和标准具两者功能的集成或混合光学装置（10）。 提供了分流器接口（72），前腔接口（74）和后腔接口（76），并且分离的区域（78,80,82,84）可以是“空气”（气体或真空）或 固体材料。 前腔接口（74），后腔接口（76）和插入的第三区域（82）限定了法布里珀罗标准具，其可以是固体或空气间隔的。 特别地，集成光学装置（10）仅具有介于分离器接口（72）和前腔接口（74）之间的第二区域（80）。