WO2003026164A1 - Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof - Google Patents
Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof Download PDFInfo
- Publication number
- WO2003026164A1 WO2003026164A1 PCT/KR2001/001309 KR0101309W WO03026164A1 WO 2003026164 A1 WO2003026164 A1 WO 2003026164A1 KR 0101309 W KR0101309 W KR 0101309W WO 03026164 A1 WO03026164 A1 WO 03026164A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- photo
- circuit board
- printed circuit
- light source
- Prior art date
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
- H04B10/114—Indoor or close-range type systems
- H04B10/1149—Arrangements for indoor wireless networking of information
-
- 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
- H04B10/40—Transceivers
Definitions
- the present invention relates to a transmitter, receiver and application
- FSON free space optical network
- the 21th century information communication society requires a social connection
- the band width of the core optical communication network is over 100
- PCS system of 2GHz is not enough to provide wireless multimedia service.
- HDTV requires tens to hundreds Mbps rate data transmission for the subscribers
- the IMT-2000 cannot be a final solution.
- the next generation multimedia is a system and service which make
- LD laser
- PD photo detector
- the present invention pursues very economical and easily installable optical
- BS base station
- CBS central base station
- MBS mobile service switching center
- the FSON is used as the back-up system for the existing wire
- the OWLL and FSON system should be robust
- the object of the present invention is to
- Another object of the present invention is to provide the transmitter,
- the present invention provides
- the present invention comprises: a light source formed on a printed circuit board;
- a photo detector formed on the printed circuit board for detecting the light from
- printed circuit board having a first terminal for receiving input signals, a second
- the light source is a laser diode or a light
- the light source and the photo detector may be bonded to the
- controller circuit may include a light source driver circuit for driving the light
- the optics module comprises a lens; and a lens holder being
- the lens is an aspheric lens or a Fresnel
- the light from the transmitter is preferably eye-
- driver and controller circuit have appropriate values according to the
- photo-detecting module a photo-detecting module, a second terminal for bias-in, and a third terminal for
- the photo-detecting module includes a preamplifier, formed on the
- circuit comprises: a signal amplifier for amplifying the signals transferred from
- an automatic gain controller for controlling the photo-detecting module via the first terminal;
- optical receiver circuit includes a preamplifier.
- the optical receiver circuit has a fourth terminal for monitoring the magnitude of input signals at the outside of the optical receiver
- the fourth terminal may be connected to a display unit for displaying the
- a transceiver for free space optical communication according to the
- present invention comprises: a first light source formed on a printed circuit
- a fourth terminal connected to the first photo detector for receiving output
- the printed circuit board for receiving the light from the first light source
- module including a second photo detector formed on the printed circuit board; a
- a fifth terminal connected to the photo-detecting module for receiving input
- the transmitting optics module and the receiving optics module are identical to the transmitting optics module and the receiving optics module.
- the transceiver may further comprises a second optical
- the media converter circuit having UTP port is
- a transponder for free space optical communication according to the
- present invention comprises: a light source formed on a printed circuit board; a
- first photo detector formed on the printed circuit board for detecting the light from the first light source; a first current driver and controller circuit, integrally
- multiplexer formed on the printed circuit board and connected to the first
- a photo-detecting module including a
- photo-detecting module a photo-detecting module, a sixth terminal for bias-in, and a seventh terminal for
- the light source first photo detector, current driver and controller
- circuit, and multiplexer may be formed on one substrate, and the photo-detecting
- optical receiver circuit optical receiver circuit
- demultiplexer may be formed on the other
- the light source first photo detector, and current driver
- controller circuit may be formed on one substrate, the multiplexer and
- demultiplexer may be formed on another substrate, and the photo-detecting
- optical receiver circuit may be formed on another substrate.
- demultiplexer and multiplexer may include add port and drop port, respectively.
- a photo-optics module including a
- a photo detector for detecting the light from the light source, and an
- optics module formed to be integrated with the light source and the photo
- circuit integrally formed on a printed circuit board, having a first terminal for
- a photo-optics module including a photo-detecting module having a photo detector, and an optics module formed
- circuit board having a first terminal connected to the photo-detecting module for
- photo detector and the third terminal are connected with flexible wire.
- a light source including a light source, a first photo detector for detecting the light from the
- photo-optics module including a photo-detecting module having a second photo
- detecting module for receiving the light from the external free space
- detecting module a current driver and controller circuit, integrally formed on a
- printed circuit board having a first terminal for receiving input signals, a second
- detecting module a sixth terminal for bias-in, and a seventh terminal for
- photo-detecting module wherein the light source and the first photo
- detector are connected to the third terminal and the fourth terminal respectively
- terminals are connected with a flexible wire.
- Fig. 1 is a schematic diagram showing a transmitter for free space optical
- Fig. 2 is a block diagram showing an example of a current driver
- Figs. 3 and 4 are schematic diagrams showing transmitters for free space
- Fig. 5 is a schematic diagram showing a receiver for free space optical
- Fig. 6 is a block diagram showing an example of an optical receiver circuit
- Fig. 7 shows an example optics module in the receiver of Fig. 5.
- Figs. 8 and 9 are schematic diagrams showing transmitters for free space
- Fig. 10 shows a transceiver for free space optical communication
- Fig. 11 is a schematic diagram showing a transceiver for free space optical
- Fig. 12 is a schematic diagram showing a transceiver for free space optical
- Fig. 13 shows an example of a transponder for free space optical
- Fig. 14 is a schematic diagram showing a transponder for free space
- optical communication whose transmitting and receiving parts are separated
- Fig. 15 is a schematic diagram showing a transponder for free space
- optical communication whose transmitting, multiplexing/ demultiplexing, and
- Fig. 16 is a schematic diagram showing a transmitter for free space optical
- FIG. 17 is a schematic diagram showing a receiver for free space optical
- Fig. 18 is a schematic diagram showing a transceiver for free space optical
- FIG. 1 is a schematic diagram showing a transmitter 100 for free
- Fig. 2 is a block diagram showing an example of a current driver
- a laser diode (“LD") 110 which is a light source to
- PCB printed circuit board
- the light from the LD 110 is collimated through an optics module 140 and
- a light emitting diode can be used as the
- LDs various kinds of LDs such as Febry-Perot LD,
- DFB-LD distributed feedback LD
- VCSEL VCSEL
- Transmitters which kind of light sources is used. Transmitters can be classified for
- a VCSEL having a nominal wavelength of 0.85*10-6m is preferably used for the very short distance
- the transmitter as the light source.
- present invention is used for the middle distance of less than 500m or short
- the light from the light source satisfies the safety standard for human body
- a photo detector (“PD") 120 is formed on the PCB 101 adjacent
- LD 110 LD 110.
- PD 120 various kinds of devices such as MSM (metal-metal-metal-metal-metal-metal-metal-
- the PD 120 detects the light from the
- LD 110 uses it as a signal to control the output of the LD 110.
- a current driver and controller circuit 130 is formed also on the PCB 101
- driver and controller circuit 130 can be formed in various ways, and it is possible
- the current driver and controller circuit 130 is
- transmission distance for example, very short distance, short distance, middle
- PCB having appropriate LD output and driving current for each transmission distance is manufactured and it is
- the example of the current driver and controller circuit 130 is shown in
- the circuit comprises an input amplifier 1302 receiving an input
- controller circuit 130 is electrically connected to an input terminal 136 to
- the LD 110 and PD 120 are integrally formed with the current driver and
- PD 120 on the PCB 101 may include filp chip bonding or wire bonding.
- the ceramic substrate can be integrated with PCB in a
- the optics module 140 is constituted of a lens 141 and a
- the lens 141 may be an aspheric lens or a Fresnel lens. Since a Fresnel lens can be manufactured easily by using an injection method, etc., it has an
- the lenses are standardized for transmission distances to
- the lens holder 142 is formed to adjust
- the optics module and PCB are formed as
- FIGs. 3 and 4 show examples of the transmitter which
- screw units 350 in Fig. 3 and 450 in Fig. 4 are formed on both sides of the optics
- the screw units can be formed
- the standardized gauge are formed in optics module having lenses of various dimensions
- wavelength of the light source is provided outside of the optics module to install
- Fig. 5 is a schematic diagram showing a receiver for free space optical
- FIG. 1 is a block diagram showing an example of an optical receiver circuit used in the
- a PD 510 to detect a light received from the free space
- a PCB 510 outside of the receiver is formed on a PCB 510.
- PD 510 various kinds of
- MSM PD mobile phone
- PIN PD PIN PD
- APD APD
- the PD 510 is attached on the PCB 501 using wire bonding or flip chip bonding and connected to an optical receiver circuit 503 formed on the PCB
- the ceramic substrate instead of conventional PCB, the ceramic substrate can be integrated
- the optical receiver circuit 530 can be formed as an example shown in Fig.
- optical receiver circuit 530 may be constituted of a pre-amplifier ("TI A" which is a pre-amplifier).
- trans-impedance amplifier 520 to amplify the signal from the PD 510, a signal
- automatic gain controller 5304 to control the gain of the received signal, a data
- the pre-amplifier 520 can be any pre-amplifier 520 .
- optical receiver circuit 530 included in the optical receiver circuit 530 or can be formed together with the PD
- the pre-amplifier 520 is formed in the optical receiver circuit 530,
- the optical receiver circuit has a constitution shown in the left part of the line II of
- FIG. 6 If the pre-amplifier is formed together with the PD as a block, the optical signal
- receiver circuit has a form shown in the right part of the line II of FIG. 6.
- the optical receiver circuit 530 is connected to an output terminal 538 to
- the light received from the outside is collected via an optics module 540
- the optics module 540 is constituted of a lens 541
- FIG. 7 shows an example
- Figs. 8 and 9 show examples of the receiver which have screw units to assemble
- 950 in Fig. 9 are formed on both sides of the optics modules 840 in Fig. 8 and 940
- screw units can be formed integrally with the PCB
- Screw units may
- an LED of a visible ray can be used. Addition to
- the conventional transceiver for fiber optical communication using
- optical fiber needs a precise packaging which spends a long time to align and
- transceiver is very high.
- the transceiver for OWLL and FSON is very high.
- the present invention is very economical, the FSON system can be more
- the receiver it is preferable that it accepts only the light in
- outputs is the light having nominal wavelength of 0.85*10-6m, 1.3*10-6m, 1.55*10-
- Fig. 10 shows an all-in-one transceiver ("TRX") for OWLL and FSON
- OWLL and FSON system is basically a bi-directional communication system
- transmitter and the receiver tend to be used together other than used separately. .
- the transmitter in Fig. 10 is that the transmitter and the receiver shown in Figs. 1
- a transmitting optics module 1040 and a receiving optics module 1040 As shown in Fig. 10, a transmitting optics module 1040 and a receiving optics module 1040 and a receiving optics module 1040
- optics module 1140 are assembled with a PCB 1001, and a circuit for transmitting
- PD 1020 for monitoring the output of the LD 1010 is formed on the PCB 1001 of
- the LD lOlO and the PD 1020 are connected to the current driver and controller
- a PD 1110 is formed adjacent to the receiving optics module 1140,
- circuits for transmitting and receiving 1030 and 1130 are identical to the circuits for transmitting and receiving 1030 and 1130.
- the transmitting and receiving optics modules 1040 and 1140 can be any transmitting and receiving optics modules 1040 and 1140.
- the assembling method can be the same as used in the transmitter 100
- the transceiver 1000 of the present invention is not limited to the transceiver 1000 of the present invention
- FIG. 10 can have all characteristics of the transmitter 100 and the
- FIG. 11 The device for this purpose is shown in Fig. 11.
- a media converter circuit 1110 for data transformation is formed
- UTP terminal pair
- Ethernet is not able to use for long distance. For example, it is the case that the
- the data signal of the transceiver should be
- a transmitting/ receiving module to carry the signal
- the apparatus 1200 is constituted to have
- circuits 1130 and 1050, and those optical devices and circuits are all formed on
- the second light source, LD, 1160 is driven using the transformed
- the transformed signal is connected to the
- the signal from the Ethernet is conveyed to the media converter 1210 through the
- the transceiver 1200 for OWLL is a transceiver 1200 for OWLL
- the subscriber network using FSON can be tried in various forms. Both
- a transmitting/ receiving module needs a function of
- Fig. 13 shows an example of a transponder for
- a multiplexer (“MUX") 1080 is connected to the
- DEMUX demultiplexer
- the optical receiver circuit 1130 of the receiving side to demultiplex the signals
- DEMUX 1180 are formed on the same PCB 1301, and the other structures are
- the subscriber network is constituted as a ring network using
- bandwidths among transmitted signals are distributed to the subscriber and
- Fig. 14 shows an example of a transponder for FSON having the above-
- the transceiver is manufactured as
- transponder of Fig. 14 has separate transmitting part and receiving part.
- the receiving part includes a PD 1110, an optical signal
- the transmitting part includes a MUX 1080 having an add port 1420, a current driver and controller circuit 1030 connected to
- the receiving part is formed on a PCB 1501
- the transmitting part is formed on
- Figs. 16 through 18 show the transmitter, receiver, and transceiver formed
- An optics module 1610 including a lens 1613 and a lens holder 1612 to adjust the
- focal distance of the lens 1613 as similar to another embodiments described above
- a photo device module 1611 including an LD and PD is formed on
- controller module 1620 separate from the optics module 1610 is formed using a
- the photo device module 1611 can be connected to the current driver
- optics module and circuit part are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are formed separately and they are
- the receiver 1700 can be formed in similar way. As shown in Fig. 17,
- detecting module 1711 can be formed as a photo detecting device or both a photo
- Fig. 18 is a schematic diagram of a transceiver formed by composing the
- a transmitting optics module 1610 and a receiving optics module 1710 are formed
- LD/PD photo device module
- a photo detecting module (PD or PD/ITA) (for receiving optics module) 1711,
- a circuit having a function of the media converter MUX/DEMUX
- circuits having add/ drop functions, etc. can be included on the substrate.
- the conventional optical fiber communication system can be established using the
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/381,817 US20040091270A1 (en) | 2001-08-01 | 2001-08-01 | Optical transmitter receiver for free space optical communication and network system and application apparatus thereof |
PCT/KR2001/001309 WO2003026164A1 (en) | 2001-08-01 | 2001-08-01 | Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2001/001309 WO2003026164A1 (en) | 2001-08-01 | 2001-08-01 | Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003026164A1 true WO2003026164A1 (en) | 2003-03-27 |
Family
ID=19198431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2001/001309 WO2003026164A1 (en) | 2001-08-01 | 2001-08-01 | Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof |
Country Status (2)
Country | Link |
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US (1) | US20040091270A1 (en) |
WO (1) | WO2003026164A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US7399205B2 (en) * | 2003-08-21 | 2008-07-15 | Hill-Rom Services, Inc. | Plug and receptacle having wired and wireless coupling |
US7884735B2 (en) | 2005-02-11 | 2011-02-08 | Hill-Rom Services, Inc. | Transferable patient care equipment support |
US20070019693A1 (en) * | 2005-03-07 | 2007-01-25 | Graham David S | Wireless power beaming to common electronic devices |
US9048951B2 (en) * | 2005-09-02 | 2015-06-02 | Georgios Margaritis | Free space optics photodetector and transceiver |
US20080084596A1 (en) * | 2006-10-06 | 2008-04-10 | Powerbeam, Inc. | Active Mirror for Power Beaming |
WO2008063678A1 (en) * | 2006-11-21 | 2008-05-29 | Powerbeam, Inc. | Optical power beaming to electrically powered devices |
JP2009005000A (en) * | 2007-06-20 | 2009-01-08 | Sharp Corp | Optical space communication device |
KR20120113726A (en) * | 2009-11-09 | 2012-10-15 | 퀀텀 일렉트로 아프투 시스템즈 에스디엔.비에이치디. | High speed communication |
CN103782659A (en) | 2011-09-02 | 2014-05-07 | 量子电镀光学系统有限公司 | Opto-electronic circuits and techniques |
US9159873B2 (en) | 2011-11-14 | 2015-10-13 | Quantum Electro Opto Systems Sdn. Bhd. | High speed optical tilted charge devices and methods |
CN102496614A (en) * | 2011-11-25 | 2012-06-13 | 深圳市易飞扬通信技术有限公司 | Packaging structure and packaging method of collimated light device |
US20160195432A1 (en) * | 2013-02-27 | 2016-07-07 | Electronics And Telecommunications Research Institute | Optical transceiver module |
US10395769B2 (en) | 2015-12-16 | 2019-08-27 | Hill-Rom Services, Inc. | Patient care devices with local indication of correspondence and power line interconnectivity |
FR3067532B1 (en) * | 2017-06-12 | 2019-06-21 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | M-PAM MODULATION TRANSMITTER FOR WIRELESS OPTICAL COMMUNICATION SYSTEM |
US20220357516A1 (en) * | 2019-06-21 | 2022-11-10 | Commscope Technologies Llc | Multifiber connector for concentric mutli-core fiber |
CN114089319B (en) * | 2022-01-19 | 2022-04-15 | 柯泰光芯(常州)测试技术有限公司 | Nanosecond LIV (laser-induced breakdown voltage) testing system and method of VCSEL (vertical cavity surface emitting laser) device |
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US4677302A (en) * | 1985-03-29 | 1987-06-30 | Siemens Corporate Research & Support, Inc. | Optical system for inspecting printed circuit boards wherein a ramp filter is disposed between reflected beam and photodetector |
US4732446A (en) * | 1985-10-02 | 1988-03-22 | Lamar Gipson | Electrical circuit and optical data buss |
JPH1062160A (en) * | 1996-08-22 | 1998-03-06 | Inax Corp | Moving device for optical axis of distance sensor |
Family Cites Families (4)
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US6064502A (en) * | 1997-08-25 | 2000-05-16 | Enderlin Inc. | Omni-directional infrared communication system |
US6788895B2 (en) * | 1999-12-10 | 2004-09-07 | Altera Corporation | Security mapping and auto reconfiguration |
NL1014313C2 (en) * | 2000-02-08 | 2001-08-13 | Fci S Hertogenbosch B V | Electro-optical connector module. |
US20020097468A1 (en) * | 2001-01-24 | 2002-07-25 | Fsona Communications Corporation | Laser communication system |
-
2001
- 2001-08-01 WO PCT/KR2001/001309 patent/WO2003026164A1/en active IP Right Grant
- 2001-08-01 US US10/381,817 patent/US20040091270A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677302A (en) * | 1985-03-29 | 1987-06-30 | Siemens Corporate Research & Support, Inc. | Optical system for inspecting printed circuit boards wherein a ramp filter is disposed between reflected beam and photodetector |
US4732446A (en) * | 1985-10-02 | 1988-03-22 | Lamar Gipson | Electrical circuit and optical data buss |
JPH1062160A (en) * | 1996-08-22 | 1998-03-06 | Inax Corp | Moving device for optical axis of distance sensor |
Also Published As
Publication number | Publication date |
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US20040091270A1 (en) | 2004-05-13 |
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