WO2007010074A3 - Optical demultiplexer - Google Patents
Optical demultiplexer Download PDFInfo
- Publication number
- WO2007010074A3 WO2007010074A3 PCT/ES2006/000431 ES2006000431W WO2007010074A3 WO 2007010074 A3 WO2007010074 A3 WO 2007010074A3 ES 2006000431 W ES2006000431 W ES 2006000431W WO 2007010074 A3 WO2007010074 A3 WO 2007010074A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wavelengths
- bars
- incident beam
- beams
- determined
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 239000003989 dielectric material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0256—Compact construction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2846—Investigating the spectrum using modulation grid; Grid spectrometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
- G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
- G02B6/29311—Diffractive element operating in transmission
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
- Optical Filters (AREA)
Abstract
The invention relates to a demultiplexer comprising an ultra-compact device which spatially separates an incident beam (4) into at least two beams (5, 6) having wavelengths (λ-1, λ2), forming a pre-fixed angle (α) therebetween. The device, which is represented by two grilles (2) comprising bars (1), consists of a plurality of layers of bars (1) which are made from a dielectric material. The invention also comprises a plane (3) which defines the area at which such wavelengths (λ1, K2) are collected for analysis and which is located at a distance (Xf) from the device. The dispersed beams (5, 6) have a determined width (δ) and are separated from the axis of the incident beam (4) by a separation distance (d). According to the invention, the thickness of the device, the cross-section of the bars and the material used are determined by the required separation angle (α) and are optimised in order to minimise crosstalk between optical channels at said wavelengths (λ1, K2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200501891A ES2297981B2 (en) | 2005-07-22 | 2005-07-22 | OPTICAL DEMULTIPLEXER. |
ESP200501891 | 2005-07-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007010074A2 WO2007010074A2 (en) | 2007-01-25 |
WO2007010074A3 true WO2007010074A3 (en) | 2007-05-03 |
Family
ID=37669175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2006/000431 WO2007010074A2 (en) | 2005-07-22 | 2006-07-21 | Optical demultiplexer |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES2297981B2 (en) |
WO (1) | WO2007010074A2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4773063A (en) * | 1984-11-13 | 1988-09-20 | University Of Delaware | Optical wavelength division multiplexing/demultiplexing system |
US6721476B2 (en) * | 2001-12-03 | 2004-04-13 | Honeywell International Inc. | Optical demultiplexer based on three-dimensionally periodic photonic crystals |
WO2005017570A2 (en) * | 2003-08-06 | 2005-02-24 | University Of Pittsburgh | Surface plasmon-enhanced nano-optic devices and methods of making same |
-
2005
- 2005-07-22 ES ES200501891A patent/ES2297981B2/en active Active
-
2006
- 2006-07-21 WO PCT/ES2006/000431 patent/WO2007010074A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4773063A (en) * | 1984-11-13 | 1988-09-20 | University Of Delaware | Optical wavelength division multiplexing/demultiplexing system |
US6721476B2 (en) * | 2001-12-03 | 2004-04-13 | Honeywell International Inc. | Optical demultiplexer based on three-dimensionally periodic photonic crystals |
WO2005017570A2 (en) * | 2003-08-06 | 2005-02-24 | University Of Pittsburgh | Surface plasmon-enhanced nano-optic devices and methods of making same |
Also Published As
Publication number | Publication date |
---|---|
ES2297981B2 (en) | 2008-12-01 |
ES2297981A1 (en) | 2008-05-01 |
WO2007010074A2 (en) | 2007-01-25 |
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