WO2019078705A1 - Apparatus for receiving optical signal - Google Patents
Apparatus for receiving optical signal Download PDFInfo
- Publication number
- WO2019078705A1 WO2019078705A1 PCT/MY2018/000031 MY2018000031W WO2019078705A1 WO 2019078705 A1 WO2019078705 A1 WO 2019078705A1 MY 2018000031 W MY2018000031 W MY 2018000031W WO 2019078705 A1 WO2019078705 A1 WO 2019078705A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fibre
- signal
- optical signal
- photodetector
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
- H04B10/1121—One-way transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1141—One-way transmission
Definitions
- This invention relates to an apparatus for receiving optical signal, especially an antenna.
- electromagnetic wave has been a major means of wireless communication. As the users of wireless communication multiply, the demand for a new mode of communication emerges. Light being a spectrum of electromagnetic wave is a potential mode of communication to address the demand.
- US 4,092,061 A discloses a side-coupling of light for an optical fibre.
- Light is coupled into and out of an optical fibre from the side by providing an acute angular cut along the end of the optical fibre and locating a light source adjacent the side of the optica! fibre opposite the inner-facing surface of the cut such that light reflects from the cut surface substantially parallel to the optica! axis of the optica! fibre.
- the outer surface of the cut is rendered reflective.
- the curved optical fibre cladding material between the side located light source or detector and the inner surface of the cut end of the optical fibre acts as a lens to collimate the light from the light source.
- an apparatus for receiving optical signal which comprises: an optical fibre, a portion of which is covered; at least one strip of nanomaterial encircling the uncovered portion of said fibre; and a photodetector coupled to one end of said fibre, for converting optical signal to electric signal; whereby during use, an optica! signa! of at least one wavelength is laterally excited onto said nanomaterial-encircled portion, such that said nanomaterial will scatter the signal into said fibre through which the scattered signal will be guided to said photodetector.
- the apparatus also comprises a computer connected to said photodetector, for storing and processing the electric signal.
- the nanomateriai is zinc oxide.
- said strip of nanomaterial encircles the uncovered portion in a helical manner.
- the apparatus aiso comprises an opaque seal which covers the other end of said fibre, for stopping at least one optical signal from entering said fibre through said other end.
- Fig. 1 is a schematic diagram of the apparatus for receiving optica! signal, according to the invention.
- the apparatus comprises: an optical fibre 1 , e.g. plastic optical fibre, a portion 2 of which is covered; a strip of nanomateriai 3, e.g. zinc oxide, which encircles the uncovered portion 4 of the fibre in a helicai manner; a photodetector 5 coupled to one end of the fibre 1 , for converting optical signal to electric signal; a computer 6 connected to the photodetector 5, for storing and processing the electric signal; and an opaque seal 7 which covers the other end of the fibre 1 for stopping optical signals 8 from entering said fibre 1 through said other end.
- optical signals each of a separate wavelength, also known as channel, is laterally excited onto the nanomateria!-encircled portion 4.
- the nanomateriai 3 will scatter the signal into said fibre 1 through which the scattered signal will be guided to said photodetector 5.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
An apparatus for receiving optical signal, which comprises: an optical fibre (1), a portion (2) of which is covered; at least one strip of nanomaterial (3) encircling the uncovered portion (4) of said fibre (1); and a photodetector (5) coupled to one end of said fibre (1), for converting optical signal to electric signal; whereby during use, an optical signal (8) of at least one wavelength is laterally excited onto said nanomaterial-encircled portion (4), such that said nanomaterial (3) will scatter the signal into said fibre (1) through which the scattered signal will be guided to said photodetector (5).
Description
APPARATUS FOR RECEIVING OPTICAL SIGNAL
This invention relates to an apparatus for receiving optical signal, especially an antenna.
BACKGROUND OF THE INVENTION
Ever since the advent of electromagnetic telegraphy in 1830s, electromagnetic wave has been a major means of wireless communication. As the users of wireless communication multiply, the demand for a new mode of communication emerges. Light being a spectrum of electromagnetic wave is a potential mode of communication to address the demand.
US 4,092,061 A discloses a side-coupling of light for an optical fibre. Light is coupled into and out of an optical fibre from the side by providing an acute angular cut along the end of the optical fibre and locating a light source adjacent the side of the optica! fibre opposite the inner-facing surface of the cut such that light reflects from the cut surface substantially parallel to the optica! axis of the optica! fibre. The outer surface of the cut is rendered reflective. The curved optical fibre cladding material between the side located light source or detector and the inner surface of the cut end of the optical fibre acts as a lens to collimate the light from the light source.
SUMMARY OF THE INVENTION
The above-mentioned demand is fulfilled, and improvements are achieved, by an apparatus for receiving optical signal, which comprises: an optical fibre, a portion of which is covered; at least one strip of nanomaterial encircling the uncovered portion of said fibre; and a photodetector coupled to one end of said fibre, for converting optical signal to electric signal; whereby during use, an optica! signa! of at least one wavelength is laterally excited onto said nanomaterial-encircled portion, such that said
nanomaterial will scatter the signal into said fibre through which the scattered signal will be guided to said photodetector.
Preferably, the apparatus also comprises a computer connected to said photodetector, for storing and processing the electric signal. Advantageously, the nanomateriai is zinc oxide.
Preferably, said strip of nanomaterial encircles the uncovered portion in a helical manner.
Advantageously, the apparatus aiso comprises an opaque seal which covers the other end of said fibre, for stopping at least one optical signal from entering said fibre through said other end.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The invention will now be described in greater detail, by way of example, with reference to the accompanying drawing, in which: Fig. 1 is a schematic diagram of the apparatus for receiving optica! signal, according to the invention.
As shown in Fig. 1 , the apparatus comprises: an optical fibre 1 , e.g. plastic optical fibre, a portion 2 of which is covered; a strip of nanomateriai 3, e.g. zinc oxide, which encircles the uncovered portion 4 of the fibre in a helicai manner; a photodetector 5 coupled to one end of the fibre 1 , for converting optical signal to electric signal; a computer 6 connected to the photodetector 5, for storing and processing the electric signal; and an opaque seal 7 which covers the other end of the fibre 1 for stopping optical signals 8 from entering said fibre 1 through said other end. During use, optical signals each of a separate wavelength, also known as channel, is laterally excited onto the nanomateria!-encircled portion 4. The nanomateriai 3 will scatter the signal into said fibre 1 through which the scattered signal will be guided to said photodetector 5.
Claims
CLAIMS 1. An apparatus for receiving optical signal, comprising:
an optical fibre (1), a portion (2) of which is covered;
at least one strip of nanomateriai (3) encircling the uncovered portion (4) of said fibre (1); and
a photodetector (5) coupled to one end of said fibre (1), for converting optical signal to electric signal;
whereby during use, an optical signal (8) of at least one wavelength is laterally excited onto said nanomaterial-encircled portion (4), such that said nanomateriai (3) will scatter the signal into said fibre (1) through which the scattered signal will be guided to said photodetector (5).
2. An apparatus as claimed in claim 1, also comprising a computer (6) connected to said photodetector (5), for storing and processing the electric signal.
3. An apparatus as claimed in claim 1 or claim 2, wherein the nanomateriai (3) is zinc oxide.
4. An apparatus as claimed in any one of claims 1 to 3, wherein said strip of nanomateriai (3) encircles the uncovered portion (4) in a helical manner.
5. An apparatus as claimed in any one of claims 1 to 4, also comprising an opaque seal (7) which covers the other end of said fibre (1), for stopping at least one optical signal from entering said fibre (1) through said other end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2017703941 | 2017-10-17 | ||
| MYPI2017703941A MY196626A (en) | 2017-10-17 | 2017-10-17 | Apparatus for Receiving Optical Signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019078705A1 true WO2019078705A1 (en) | 2019-04-25 |
Family
ID=66174179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MY2018/000031 Ceased WO2019078705A1 (en) | 2017-10-17 | 2018-10-16 | Apparatus for receiving optical signal |
Country Status (2)
| Country | Link |
|---|---|
| MY (1) | MY196626A (en) |
| WO (1) | WO2019078705A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2413129A1 (en) * | 2009-03-24 | 2012-02-01 | Hanscan IP B.V. | Life detector device |
| US20160127664A1 (en) * | 2013-06-13 | 2016-05-05 | Basf Se | Detector for optically detecting at least one object |
| EP3086149A1 (en) * | 2015-04-21 | 2016-10-26 | Huawei Technologies Co., Ltd. | Coaxial photodetector |
| US20170237926A1 (en) * | 2013-06-13 | 2017-08-17 | Basf Se | Optical detector and method for manufacturing the same |
| US20170254749A1 (en) * | 2006-02-08 | 2017-09-07 | The General Hospital Corporation | Systems and methods for obtaining information associated with an anatomical sample using optical microscopy |
-
2017
- 2017-10-17 MY MYPI2017703941A patent/MY196626A/en unknown
-
2018
- 2018-10-16 WO PCT/MY2018/000031 patent/WO2019078705A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170254749A1 (en) * | 2006-02-08 | 2017-09-07 | The General Hospital Corporation | Systems and methods for obtaining information associated with an anatomical sample using optical microscopy |
| EP2413129A1 (en) * | 2009-03-24 | 2012-02-01 | Hanscan IP B.V. | Life detector device |
| US20160127664A1 (en) * | 2013-06-13 | 2016-05-05 | Basf Se | Detector for optically detecting at least one object |
| US20170237926A1 (en) * | 2013-06-13 | 2017-08-17 | Basf Se | Optical detector and method for manufacturing the same |
| EP3086149A1 (en) * | 2015-04-21 | 2016-10-26 | Huawei Technologies Co., Ltd. | Coaxial photodetector |
Also Published As
| Publication number | Publication date |
|---|---|
| MY196626A (en) | 2023-04-23 |
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