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11.发明专利
公开(公告)号：AU8043001A
公开(公告)日：2001-11-07
申请号：AU8043001
申请日：2001-04-25
Applicant: ZOLO TECHNOLOGIES INC
Inventor： SAPPEY ANDREW D
Abstract: A (de)multiplexer for use in optical communications systems includes a diffraction grating optically coupled between a multiplex optical waveguide and a plurality of single channel optical waveguides for diffracting an optical signal between a receiving/transmitting end of the multiplex optical waveguide and a receiving/transmitting end of the single channel optical waveguide. The diffraction grating has al least two surfaces optically coupled to the waveguides. Each of the surfaces is angularly displaced relative to one another a select amount such that a portion of the optical signal diffracted by each surface is offset the direction of dispersion relative to the portions of the optical signal diffracted by the other surfaces to broaden the transmission band. A method for broadening The transmission band of a (de)multiplexer includes dividing the diffraction grating into distinct surfaces and angularly displacing the surfaces relative to one another a select amount such that a portion of the optical signal diffracted by each surface is offset in a direction of dispersion.
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公开(公告)号：AU2010282589A2
公开(公告)日：2012-03-22
申请号：AU2010282589
申请日：2010-08-10
Applicant: ZOLO TECHNOLOGIES INC
Inventor： MASTERSON BERNARD PATRICK , HOWELL JAMES , HOFVANDER HENRIK , SAPPEY ANDREW D
IPC: F02C7/22
Abstract: An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.
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公开(公告)号：AU2010203674A1
公开(公告)日：2011-07-28
申请号：AU2010203674
申请日：2010-01-07
Applicant: ZOLO TECHNOLOGIES INC
Inventor： JOHN ESTES MICHAEL , SAPPEY ANDREW D , HENRIK HOFVANDER , ALLEN MOLITORIS , PATRICK MASTERSON BERNARD , PEI HUANG
Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.
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公开(公告)号：CA2620151A1
公开(公告)日：2007-04-12
申请号：CA2620151
申请日：2006-10-04
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HOWELL JAMES
Abstract: A method of calibrating an absorption spectroscopy measurement wherein the calibration method includes projecting laser light throu a sample of a first quantity of a gas of interest and a second irrelevant quantity of a spectroscopically identical or similar gas (10). The first and second spectroscopic absorptions of the laser light are measured over specific firs t and second absorption lines. A functional relationship is determined between the first and second measured spectroscopic absorptions and two unknown variables. The function relationships may then be simultaneously solved to determine one or both unknown variables and thereby obtain a measurement relati to the first quantity of the gas of interest, calibrated for the seco nd irrelevant quantity of gas.
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公开(公告)号：CA2383611C
公开(公告)日：2006-11-14
申请号：CA2383611
申请日：2000-08-31
Applicant: ZOLO TECHNOLOGIES INC
Inventor： MURPHY GERRY , SAPPEY ANDREW D
Abstract: A dense wavelength multiplexer/demultiplexer ("DWDM") (10) for us in optical communication systems includes a multiplex optical waveguide (14) propagatin g a plurality of optical channels (.lambda.iest;1-n) of a select channel spaci ng multiplexed as a single optical signal within a select near infrared wavelength range. a collimating/focusing optic (18) is optically coupled to the multiplexed optical waveguide at a select focal length. A reflective echelle grating (20) is optically coupled to the collimating/focusing optic (18). The echelle grating (20) has a groove spacing (d) and blaze angle (.theta.b) providing a channel spacing (d) of the multiplexed optical signal (.lambda.l-n) at the select focal length for a select order of diffraction. A linear array of single channel waveguides (16), each propagating a single channel within the near infrared wavelength range is optically coupled to th e collimating/focusing optic. Each optical single channel waveguide (16) 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 (D). A fiber pigtail harness is used to connect the multiplexer which works in a Littrow configuration.
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Patent Agency Ranking
公开(公告)号：AU2005236385A1
公开(公告)日：2005-11-03
申请号：AU2005236385
申请日：2005-02-02
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HUELSON ERIC C , MASTERSON BERNARD PATRICK , SMITH IAN S
Abstract: An optical mode noise averaging device (300) including a multimode optical fiber (302) and means (308) for averaging a modal noise induced signal level variation of light propagating within the multimode optical fiber (302). The device may average modal noise induced signal level variations by cyclically varying an index of refraction of the multimode optical fiber (302) over a select period of time, scrambling a light distribution within the multimode optical fiber (302), or both. The index of refraction of the multimode optical fiber may be cyclically varied by cyclically varying the temperature of the multimode optical fiber (302). Alternatively, the index for refraction may be varied or the light distribution within the multimode optical fiber may be scrambled by cyclically manipulating the multimode optical fiber (302).
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公开(公告)号：CA2871072A1
公开(公告)日：2013-10-24
申请号：CA2871072
申请日：2013-03-15
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HOWELL JIM , MASTERSON BERNARD PATRICK , HARRIS ROD , GILTNER DAVID , JOBSON ATILIO , ESTES MICHAEL JOHN , SAPPEY ANDREW D
Abstract: A method of monitoring combustion properties in an interior of a furnace is described. A beam of light is projected through a pitch optic including a pitch collimating lens residing outside the boiler interior. The pitch collimating lens projects the beam through a penetration into the boiler interior. The beam of light projected by the pitch collimating lens is reflected from at least one in-furnace retro-reflector, and received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The pitch optic and the catch optic may be embodied in the same pitch/catch optic. The pitch collimating lens may also be steered toward another of the at least one in-furnace retro-reflectors. Combustion properties may be calculated for each retro-reflector or based on retro-reflector zones within the furnace.
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公开(公告)号：AU2010203674A2
公开(公告)日：2012-01-19
申请号：AU2010203674
申请日：2010-01-07
Applicant: ZOLO TECHNOLOGIES INC
Inventor： ESTES MICHAEL JOHN , SAPPEY ANDREW D , HOFVANDER HENRIK , MOLITORIS ALLEN , MASTERSON BERNARD PATRICK , HUANG PEI
Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.
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公开(公告)号：CA2748793A1
公开(公告)日：2010-07-15
申请号：CA2748793
申请日：2010-01-07
Applicant: ZOLO TECHNOLOGIES INC
Inventor： ESTES MICHAEL JOHN , SAPPEY ANDREW D , HOFVANDER HENRIK , MOLITORIS ALLEN , MASTERSON BERNARD PATRICK , HUANG PEI
Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.
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20.发明专利
公开(公告)号：AU2008256759A2
公开(公告)日：2010-02-18
申请号：AU2008256759
申请日：2008-05-23
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HOWELL JAMES , HOFVANDER HENRIK , ZHAO QINGCHUN , SAPPEY ANDREW D
IPC: G01N21/00
Abstract: A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further includes identifying more than one temperature and gas species concentration bin along the multiple line-of-sight paths and creating a map of temperature and gas species concentration. The map thus created will have at least two-dimensional information derived from select temperature and gas species concentration bins identified along more than one line-of-sight path. Apparatus for implementing the above method is also disclosed.
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