公开(公告)号：US20080289342A1

公开(公告)日：2008-11-27

申请号：US12092673

申请日：2006-11-06

Applicant: Andrew D. Sappey ,  Bernard Patrick Masterson ,  Henrik Hofvander

Inventor： Andrew D. Sappey ,  Bernard Patrick Masterson ,  Henrik Hofvander

IPC: F02C9/28 ,  F02C7/22 ,  G01N21/27

CPC classification number: G01M15/14 ,  F01D21/003 ,  F02C9/28 ,  F05D2260/80

Abstract: A method for measuring combustion parameters within a combustion zone of a gas turbine engine, the combustion zone being defined between an inner and outer casing. The method comprises transmitting a beam from a transmit optic optically coupled to a bore in the outer casing off a portion of the inner casing and receiving a portion of the beam reflected off the inner casing with a receiving optic optically coupled to a bore in the outer casing. An apparatus for practicing the method comprises a laser generating a beam and a transmitting/receiving optics pair, the transmitting/receiving optics pair being configured for operative association with a port in an outer casing of a gas turbine engine, whereby the transmitting/receiving optics are in optical communication by reflecting the beam off a portion of an inner casing.

Abstract translation: 一种用于测量燃气涡轮发动机的燃烧区内的燃烧参数的方法，所述燃烧区被限定在内壳和外壳之间。 该方法包括从光学耦合到外壳中的孔光学耦合到外壳的一部分的发射光学器件的光束传输光束，并且接收从外壳反射的一部分光束，该接收光学器件光耦合到外壳中的孔 套管。 用于实施该方法的装置包括产生光束和发射/接收光学对的激光器，所述发射/接收光学对被配置为与燃气涡轮发动机的外壳中的端口可操作地相关联，由此所述发射/接收光学器件 通过将束离开内壳的一部分而进行光通信。

公开(公告)号：US06415080B1

公开(公告)日：2002-07-02

申请号：US09628774

申请日：2000-07-29

Applicant: Andrew D. Sappey ,  Gerry Murphy

Inventor： Andrew D. Sappey ,  Gerry Murphy

IPC: G02B634

CPC classification number: G02B6/29308 ,  G02B5/1861 ,  G02B6/2931 ,  G02B6/29361 ,  G02B6/29373 ,  G02B6/2938

Abstract: A dense wavelength multiplexer/demultiplexer (“DWDM”) for use in optical communication systems includes a multiplex optical waveguide propagating a plurality of optical channels of a select channel spacing multiplexed as a single optical signal within a select near infrared wavelength range. A collimating/focusing optic is optically coupled to the multiplex optical waveguide at a select focal length. A reflective echelle grating is optically coupled to the collimating/focusing optic. The echelle grating has a groove spacing and blaze angle providing a channel spacing of the multiplexed optical signal at the select focal length for a select order of diffraction. A linear array of single channel waveguides, each propagating a single channel within the near infrared wavelength range is optically coupled to the collimating/focusing optic. Each optical single channel waveguide has a center and a propagating end and the propagating ends are spaced the focal length from the collimating/focusing optic and the centers of adjacent demultiplexed waveguides are spaced the select channel spacing.

Abstract translation: 用于光通信系统的密集波长多路复用器/解复用器（“DWDM”）包括多路复用光波导，其在选择的近红外波长范围内传播多路复用的选择信道的多个光信道作为单个光信号。 准直/聚焦光学器件以选择焦距光耦合到多路复用光波导。 光学耦合到准直/聚焦光学元件。 扇形光栅具有凹槽间距和闪耀角度，以提供选择焦距处的多路复用光信号的通道间隔，用于选择衍射级。 每个在近红外波长范围内传播单个通道的单通道波导的线性阵列与准直/聚焦光学器件光耦合。 每个光学单通道波导具有中心和传播端，并且传播端与准直/聚焦光学元件隔开焦距，并且相邻解复用波导的中心间隔选择通道间隔。

公开(公告)号：US06400509B1

公开(公告)日：2002-06-04

申请号：US09675768

申请日：2000-09-29

Applicant: Andrew D. Sappey ,  Bernhard W. Bach

Inventor： Andrew D. Sappey ,  Bernhard W. Bach

IPC: G02B518

CPC classification number: G02B5/1861 ,  Y10S359/90

Abstract: A diffraction grating for use in multiplexing and demultiplexing optical signals in optical communication systems having reduced polarization sensitivity has a plurality of grooves including reflective step surfaces and transverse riser surfaces separated by a flat. The step surfaces have a reflective coating and the riser surfaces do not have a reflective coating. A method of making a reflective diffraction grating includes forming a plurality of grooves in a substrate, the grooves having a step surface for reflecting an incident beam, a transverse riser and a flat therebetween and providing a reflective coating on the steps and not on the risers.

Abstract translation: 用于具有降低的偏振灵敏度的光通信系统中的光信号的复用和解复用的衍射光栅具有多个凹槽，包括由平面隔开的反射台阶表面和横向立管表面。 台阶表面具有反射涂层，并且提升板表面不具有反射涂层。 制造反射衍射光栅的方法包括在衬底中形成多个凹槽，所述凹槽具有用于反射入射光束的台阶表面，横向上升器和平板，并且在台阶上提供反射涂层，而不是在立管上 。