公开(公告)号：US06454465B1

公开(公告)日：2002-09-24

申请号：US09660641

申请日：2000-09-13

申请人： Michael Uschitsky ,  Scott M. Hellman ,  David A. Thompson ,  Kurt R. Francis

发明人： Michael Uschitsky ,  Scott M. Hellman ,  David A. Thompson ,  Kurt R. Francis

IPC分类号： G02B626

CPC分类号： G02B6/2937 ,  G02B6/29364 ,  G02B6/29389 ,  G02B6/29395 ,  G02B6/32

摘要： A method for making an optical collimating device having three or more ports. A test light having the same wavelength as that at which the filter is designed to operate is transmitted through the input collimator. The angle of incidence is measured, and the location where the reflected beam reaches the ferrule is determined. The data dictates where the output fiber pigtail should be positioned within the ferrule to achieve the measured angle of incidence for that transmitted wavelength and the spacing between input and output pigtails based on the angle of reflection. Multiple ferrules containing two or more pigtails corresponding to a particular filter operating at a particular wavelength are segregated into separate collimator bins that are marked accordingly.

摘要翻译： 一种用于制造具有三个或更多个端口的光学准直装置的方法。 具有与滤波器设计的波长相同的波长的测试光通过输入准直仪传输。 测量入射角，确定反射光束到达套圈的位置。 数据指示输出光纤引线应位于套圈内的位置，以实现该透射波长的测量入射角和基于反射角的输入和输出尾纤之间的间距。 包含对应于在特定波长下操作的特定过滤器的两个或更多个尾纤的多个套圈被分离成分别标记的相应的准直器箱。

公开(公告)号：US06603906B2

公开(公告)日：2003-08-05

申请号：US09917463

申请日：2001-07-28

申请人： Yi Qin ,  Zhouzheng Shi ,  Kurt R. Francis

发明人： Yi Qin ,  Zhouzheng Shi ,  Kurt R. Francis

IPC分类号： G02B626

CPC分类号： G02B6/4204 ,  G02B6/3845

摘要： An optical power monitor comprises a fiber and ferrule assembly telescopically embedded in a first glass tube enclosure and a collimating lens telescopically embedded in a second glass tube enclosure. The two glass tube enclosures are bonded together at their respective facing axial ends. The collimating lens is at a first end substantially adjacent the fiber and ferrule assembly. A second end of the lens is coated with a partially transmissive mirror surface for passing a portion of incident light to a photon detector which is bonded to the second glass tube enclosure.

摘要翻译： 光功率监视器包括可伸缩地嵌入在第一玻璃管外壳中的光纤和套圈组件以及可伸缩地嵌入第二玻璃管外壳中的准直透镜。 两个玻璃管外壳在其相应的相对的轴向端部处结合在一起。 准直透镜位于基本上邻近纤维和套圈组件的第一端。 透镜的第二端涂覆有部分透射的镜面，用于将入射光的一部分传递到结合到第二玻璃管外壳的光子检测器。

公开(公告)号：US06525881B2

公开(公告)日：2003-02-25

申请号：US09798070

申请日：2001-03-05

申请人： Kurt R. Francis

发明人： Kurt R. Francis

IPC分类号： G02B110

CPC分类号： G02B5/285 ,  G02B5/20

摘要： An optical filtering element with minimized edge effects, larger clear center aperture, and thermally stable bonding area. The element consists of a modified ball lens. The glass material that comprises the ball lens can be selected from a variety of thermally matched glass specific to the intended application such as BK7, SiO2, et cetera. The lens is polished on two sides so that the polished surfaces are nearly parallel. The polished ball lens(es) are then loaded into a coating fixture and then into a coating chamber. Multiple dielectric layers are applied to one of the polished surfaces, creating a spectral modifying filter. The other side is coated with an anti-reflection coating (some applications do not require the anti-reflection coating). At the completion of the coating run, the now polished and coated ball lenses can be spectrally measured and binned for use.

公开(公告)号：US06304383B1

公开(公告)日：2001-10-16

申请号：US09398647

申请日：1999-09-17

申请人： William L. DeBoynton ,  Kurt R. Francis ,  Scott M. Hellman ,  Michael Uschitsky ,  Peter G. Wigley

发明人： William L. DeBoynton ,  Kurt R. Francis ,  Scott M. Hellman ,  Michael Uschitsky ,  Peter G. Wigley

IPC分类号： G02B2700

CPC分类号： G02B5/285 ,  G02B7/006 ,  G02B7/008 ,  G02F1/0128 ,  G02F1/21 ,  Y10S359/90

摘要： A temperature compensated optical filter assembly including a plurality of thin films having temperature dependent indices of refraction which are deposited on a glass substrate so as to form a conventional interference filter thereon. The glass substrate is adhesively coupled to a metal holder such that the deposited thin film interference filter is interposed between the glass substrate and an adhesive layer distributed along a mounting surface of the holder. Thus, a first thermal mismatch stress is applied by the glass substrate onto an inner layer of the interference filter and a second mismatch stress is applied by the holder onto an outer layer of the interference filter, wherein the first and second mismatch stresses depend on the temperature of the filter assembly. The glass substrate, the adhesive, and the holder are preferably formed of materials having mechanical properties such that the first and second mismatch stresses compensate for the effects of the temperature dependent indices of refraction of the thin films so as to uniformly maintain the spectral performance of the filter assembly in response to a change in temperature. In one embodiment, an additional degree of freedom is obtained by electro/magneto-strictively prestressing the thin film stack during the formation thereof. In another embodiment, an active stress management system is utilized.

摘要翻译： 一种温度补偿滤光器组件，包括具有温度依赖折射率的多个薄膜，其沉积在玻璃基板上，以在其上形成常规的干涉滤光片。 玻璃基板粘合地耦合到金属保持器，使得沉积的薄膜干涉滤光器插入在玻璃基板和沿着保持器的安装表面分布的粘合剂层之间。 因此，第一热失配应力由玻璃基板施加到干涉滤光器的内层上，并且第二不匹配应力由保持器施加到干涉滤光器的外层上，其中第一和第二失配应力取决于 过滤组件的温度。 玻璃基板，粘合剂和保持器优选地由具有机械特性的材料形成，使得第一和第二失配应力补偿薄膜的温度依赖折射率的影响，以便均匀地保持薄膜的光谱性能 过滤器组件响应于温度的变化。 在一个实施例中，通过在形成薄膜堆叠期间通过电/磁 - 严格预应力来获得附加的自由度。 在另一个实施例中，利用主动应力管理系统。

公开(公告)号：US06343166B1

公开(公告)日：2002-01-29

申请号：US09599168

申请日：2000-06-22

申请人： Scott M. Hellman ,  Kurt R. Francis ,  Michael Uschinsky ,  Heinrich G. O. Muller

发明人： Scott M. Hellman ,  Kurt R. Francis ,  Michael Uschinsky ,  Heinrich G. O. Muller

IPC分类号： G02B632

CPC分类号： G02B6/3845 ,  G02B6/2937 ,  G02B6/29389 ,  G02B6/29395 ,  G02B6/32 ,  G02B6/327 ,  G02B6/3636 ,  G02B6/3644 ,  G02B6/3834 ,  G02B6/3839 ,  G02B6/3861 ,  G02B6/3863 ,  G02B6/3885

摘要： A method of manufacturing a filter includes the steps of positioning a collimator assembly including a GRIN lens mounted thereto in a movable fixture, placing a UV or thermally curable adhesive on the periphery of the GRIN lens, moving the GRIN lens into engagement with a filter holder having a filter mounted therein, micro-tilting the filter holder while monitoring the input and output signals of the fibers coupled to the GRIN lens for insertion loss less than about 0.1 dB, and applying UV radiation through the filter end of the filter holder to initially cure the aligned subassembly. In a preferred embodiment, the resultant subassembly is subsequently stress relieved and thoroughly cured. In another embodiment, UV radiation is applied to the filter holder GRIN lens interface through one or more apertures formed in the side of the filter holder. An optical filter has an input ferrule with an input cone having an axial length greater than about 3 mm to reduce S-bending of input fibers, thereby minimizing resultant insertion losses. The filter includes a holder with an annular seat formed in one end for receiving a filter and a lens-receiving aperture at an opposite end which allows micro-tilting of the filer holder to provide an alignment at an angle of less than about 1° to the axis of the GRIN lens.

摘要翻译： 一种制造过滤器的方法包括以下步骤：将包括安装在其上的GRIN透镜的准直器组件定位在可移动夹具中，将UV或可热固化的粘合剂放置在GRIN透镜的周边上，将GRIN透镜移动到与过滤器保持器 具有安装在其中的过滤器，微型倾斜过滤器保持器，同时监测耦合到GRIN透镜的光纤的输入和输出信号，以便插入损耗小于约0.1dB，并将UV辐射穿过过滤器保持器的过滤器端部初始 固化对齐的子组件。 在优选的实施方案中，所得的子组件随后应力消除并彻底固化。 在另一个实施例中，通过形成在过滤器保持器侧面上的一个或多个孔将UV辐射施加到过滤器保持器GRIN透镜界面。 光学滤波器具有输入套圈，其具有大于约3mm的轴向长度的输入锥，以减少输入光纤的S形弯曲，从而最小化所产生的插入损耗。 过滤器包括具有环形座的保持器，其一端形成用于接收过滤器，并且在相对端具有透镜容纳孔，其允许过滤器保持器的微倾斜以小于约1°的角度提供对准 GRIN镜头的轴。

公开(公告)号：US06168319A

公开(公告)日：2001-01-02

申请号：US09368687

申请日：1999-08-05

申请人： Kurt R. Francis

发明人： Kurt R. Francis

IPC分类号： G02B636

CPC分类号： G02B6/2937 ,  G02B6/29395 ,  G02B6/32

摘要： A method and apparatus of aligning a collimator assembly requiring only a single-axis adjustment and for which the collimator may be paired with any other similarly aligned collimator. A collimator typically includes a fiber grasped by a ferrule. Both the ferrule and a graded-index (GRIN) lens are eventually bonded to the inside of a glass tube with the fiber/lens distance fixed for optimum collimator performance. According to one method of practicing the invention, the tube/lens assembly is fixed, and the ferrule/fiber is slidably inserted into the tube. The position of the ferrule/fiber is adjusted within the tube while the size of the resultant beam is measured at a fixed distance from the output from the lens. If there are two such positions producing the optimum beam size, the position of less separation between the ferrule and fiber is chosen. The collimators aligned by the invention may be freely paired with each other (for example, within a sleeve or housing also containing an optical element located between the two collimators). An optimum beam size and optimum measuring distance may be established by an optical calculation or other optimization technique dictated for the intended use of the collimator.

摘要翻译： 对准仅需要单轴调节的准直仪组件的方法和装置，准直仪可与任何其它类似对准的准直仪配对。 准直器通常包括由套圈夹持的纤维。 套管和渐变折射率（GRIN）透镜最终都粘合到玻璃管的内部，其中光纤/透镜的距离被固定以获得最佳的准直仪性能。 根据实施本发明的一种方法，管/透镜组件被固定，并且套圈/纤维可滑动地插入管中。 套管/纤维的位置在管内被调节，而所得到的光束的尺寸在与透镜的输出固定的距离处被测量。 如果有两个这样的位置产生最佳光束尺寸，则选择套圈和光纤之间的较小间隔的位置。 通过本发明对准的准直器可以彼此自由地配对（例如，在也包含位于两个准直器之间的光学元件的套筒或壳体内）。 最佳光束尺寸和最佳测量距离可以通过光学计算或为准直仪的预期用途而规定的其他优化技术建立。

公开(公告)号：US06204970B1

公开(公告)日：2001-03-20

申请号：US09460228

申请日：1999-12-13

申请人： Scott M. Hellman ,  Kurt R. Francis

发明人： Scott M. Hellman ,  Kurt R. Francis

IPC分类号： G02B2700

CPC分类号： G02B6/29368 ,  G02B5/20 ,  G02B6/29389 ,  G02B6/29395 ,  H04J14/02

摘要： A method for tuning a dielectric filter comprises determining filter characteristics of a filter including a cut-on wavelength and a cut-off wavelength taken at a selected gain level. The filter is rotatably attached to a collimator assembly and a light source having a wavelength approximately equal to the cut-on frequency is applied to the filter and rotated to adjust the filter to the cut-on wavelength, and the spectral performance is measured and compared with a cut-on rating value. The method further includes applying a light signal having a wavelength set to a cut-off wavelength, to the filter rotating the filter relative to the collimator assembly, measuring spectral performance, and comparing the measured spectral performance with a cut-off rating value. The light source having a wavelength set to the cut-on wavelength is reapplied to the filter, and the difference in measured spectral performance with the rating values for each of the low cut-on wavelength and high cut-off wavelength are compared to determine if the difference is within an acceptable range. The steps are repeated until the difference is within an acceptable range and the filter is thus fixedly attached to the collimator assembly to complete the resultant filter.

摘要翻译： 用于调谐介质滤波器的方法包括确定滤波器的滤波器特性，该滤波器包括在所选择的增益水平下取得的截止波长和截止波长。 过滤器可旋转地附接到准直器组件，并且具有近似等于接通频率的波长的光源被施加到过滤器并旋转以将过滤器调节到切入波长，并且测量和比较光谱性能 具有切实的评级值。 该方法还包括将具有设置为截止波长的波长的光信号施加到相对于准直器组件旋转滤光器的滤光器，测量光谱性能，以及将测量的光谱性能与截止额定值进行比较。 将具有设定为接通波长的波长的光源重新应用于滤波器，并且比较测量的光谱性能的差异与每个低切入波长和高截止波长的额定值，以确定是否 差异在可接受的范围内。 重复这些步骤，直到差值在可接受的范围内，并且过滤器固定地附接到准直器组件以完成所得到的过滤器。