WO2018117278A1 - Bloc de démultiplexage optique et bloc de multiplexage optique - Google Patents

Bloc de démultiplexage optique et bloc de multiplexage optique Download PDF

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Publication number
WO2018117278A1
WO2018117278A1 PCT/KR2016/014865 KR2016014865W WO2018117278A1 WO 2018117278 A1 WO2018117278 A1 WO 2018117278A1 KR 2016014865 W KR2016014865 W KR 2016014865W WO 2018117278 A1 WO2018117278 A1 WO 2018117278A1
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WO
WIPO (PCT)
Prior art keywords
block
block body
optical
filter
collimating lens
Prior art date
Application number
PCT/KR2016/014865
Other languages
English (en)
Korean (ko)
Inventor
강상도
오승근
Original Assignee
엠피닉스 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 엠피닉스 주식회사 filed Critical 엠피닉스 주식회사
Publication of WO2018117278A1 publication Critical patent/WO2018117278A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • 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
    • G02B27/30—Collimators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind

Definitions

  • the present invention relates to an optical demux block and an optical mux block, and more particularly, an optical demux block which does not require optical axis alignment between the collimating lens and the block body by integrally forming a collimating lens on one side of the block body. Relates to an optical mux block.
  • optical communication has been widely used to transmit optical signals of different wavelengths through a single optical fiber by using wavelength division multiplexing (WDM) to increase transmission capacity.
  • WDM wavelength division multiplexing
  • wavelength selective devices such as thin films are used to multiplex or demultiplex signals of various wavelengths.
  • FIG. 1 is a view showing an example of a conventional multiplexing device 10.
  • the conventional multiplexing apparatus 10 includes a filter 11 for selectively transmitting only a specific wavelength of an incident beam, beams ⁇ 1, ⁇ 2, and beams having different wavelengths incident by the filter 11. an optical block 12 for reflecting ⁇ 3) to reflect and merge with each other, and a collimating lens 13 for receiving and focusing the combined multi-wavelength beams.
  • FIG. 2 is a view for explaining when the conventional multiplexing apparatus 10 functions as the demultiplexing apparatus 20.
  • the conventional demultiplexing apparatus 20 has a multi-wavelength beam lambda 1, ⁇ 2 and ⁇ 3 are incident to one side of the optical block 22 through the collimating lens 21, and the incident multi-wavelength beam is only a specific wavelength by the filter 23 provided on the other side of the optical block 22. Is transmitted and the remaining wavelengths are reflected, thereby demultiplexing the multi-wavelength beam.
  • the object of the present invention is to eliminate the optical axis alignment between the collimating lens and the block body, can improve the mass production of the product, and can prevent the loss of the optical signal
  • An optical demux block and an optical mux block are provided.
  • the present invention is an optical demux block for demultiplexing the multi-wavelength beam incident through one side to be transmitted through the other side, a transparent material, one side and the other side facing each other Parallel to each other, the one side and the other side of the parallelogram-shaped block body inclined at a predetermined angle;
  • a collimating lens which is formed integrally with the block body on one side of the block body and is formed in a predetermined area where the beam is incident to change the incident beam into parallel light;
  • a total reflection layer formed on one side of the block body and formed in an area where the collimating lens is not provided;
  • An antireflection layer formed on the other side of the block body; It is provided on the other side of the block body, to transmit a specific wavelength of the incident beam, the remaining wavelength is provided to provide an optical demux block comprising a.
  • an antireflective layer is formed on one side of the block body corresponding to the area where the collimating lens is formed.
  • the total reflection layer is formed of an HR coating layer
  • the anti-reflective layer is formed of an AR coating layer.
  • the filter is provided with a plurality of filters that can selectively transmit different wavelengths.
  • the present invention also provides an optical demux block according to the present invention; And a microlens array provided at a rear end of the filter and having a plurality of microlenses corresponding to the number of filters integrally arranged to receive a beam transmitted through the filter. Provide more.
  • the present invention is an optical mux block for multiplexing the beams of different wavelengths incident through the other side to be transmitted through one side, a transparent material, one side and the other side facing each other are parallel to each other, A block body having a parallelogram shape in which one side and the other side are inclined at a predetermined angle; A filter provided on the other side of the block body to selectively transmit a specific wavelength of the incident beam; A collimating lens formed integrally with the block body on one side of the block body and formed in a predetermined region through which the beam is transmitted, for focusing the transmitted beam; A total reflection layer formed on one side of the block body and formed in an area where the collimating lens is not provided; And an antireflection layer formed on the other side of the block body.
  • an antireflective layer is formed on one side of the block body corresponding to the area where the collimating lens is formed.
  • the total reflection layer is formed of an HR coating layer
  • the anti-reflective layer is formed of an AR coating layer.
  • the filter is provided with a plurality of filters that can selectively transmit different wavelengths.
  • the present invention also provides an optical mux block according to the present invention; And a micro lens array provided at a front end of the filter, the plurality of micro lenses corresponding to the number of filters are integrally arranged so that the incident beam is converted into parallel light and irradiated to the filter. To provide more optical mux.
  • the present invention has the following excellent effects.
  • the collimating lens is integrally formed on one side of the block body, thereby eliminating the optical axis alignment between the block body and the collimating lens, thereby improving mass productivity of the product. It can be, and there is an effect that can prevent the loss of the optical signal.
  • 1 is a view for explaining a conventional multiplexing device.
  • FIG. 2 is a view for explaining a conventional demultiplexing apparatus.
  • FIG 3 illustrates an optical demux block according to an embodiment of the present invention.
  • FIG 4 illustrates an optical demux according to an embodiment of the present invention.
  • FIG. 5 is a view illustrating an optical mux block according to an embodiment of the present invention.
  • optical demux 210 micro lens array
  • FIG 3 is a view for explaining an optical demux block according to a first embodiment of the present invention.
  • the optical mux block 100 is an optical element for demultiplexing and transmitting a beam of multiple wavelengths incident through one side, and includes a block body 110.
  • the collimating lens 120, the total reflection layer 130, the antireflection layer 140, and the filter 150 are included.
  • the block body 110 is formed of a transparent material that can transmit light, and one side 111 and the other side 112 facing each other are parallel to each other, the one side 111 and the other side 112 ) Is provided in a parallel slope shape inclined at a predetermined angle ⁇ .
  • the block body 110 is provided in a shape in which one side 111 and the other side 112 of the block body 110 forms a predetermined angle ⁇ with the bottom surface of the block body 110.
  • the collimating lens 120 is integrally formed with the block body 110 on one side 111 of the block body 110.
  • the collimating lens 120 is formed in a predetermined region where the beam is incident and changes the incident beam into parallel light.
  • the collimating lens 120 is integrally formed in an upper region or a lower region of one side 111 of the block body 110 to change the incident beam into parallel light.
  • the mass productivity of the product may be improved and the loss of the optical signal may be reduced. You can prevent it.
  • the collimating lens 120 may be a microlens having an aspherical surface having one side thereof aspheric.
  • an anti-reflection layer is formed on one side 111 of the block body 110 corresponding to the area where the collimating lens 120 is formed.
  • the total reflection layer 130 is a mirror layer capable of reflecting a beam, and is formed on one side 111 of the block body, and is formed by coating a region in which the collimating lens 120 is not formed.
  • the total reflection layer 130 may be formed as a high-reflection (HR) coating layer.
  • HR high-reflection
  • the antireflective layer 140 is formed by coating on the other side of the block body 110.
  • the antireflection layer 140 may be an anti-reflection (AR) coating layer.
  • AR anti-reflection
  • the filter 150 is provided on the other side 112 of the block body 110, and is a wavelength selective filter that transmits a specific wavelength of the incident beam and reflects the remaining wavelengths.
  • the filter 150 may be provided in plural numbers, and the plurality of filters are provided to selectively transmit different wavelengths.
  • the filter 150 is provided with a number corresponding to the number of wavelengths to be demultiplexed.
  • FIG. 3 illustrates that the filter 150 is made up of four, this may be easily changed according to the number of wavelengths to be distributed, but is not limited thereto.
  • the multi-wavelength beam ⁇ 1 + ⁇ 2 + ⁇ 3 + ⁇ 4 incident on the block body 110 is converted into parallel light via the collimating lens 120.
  • the first wavelength ⁇ 1 of the multi-wavelength beams ⁇ 1 + ⁇ 2 + ⁇ 3 + ⁇ 4 incident into the block body 110 is transmitted by the first filter 151, and the remaining wavelengths ( The beam of ⁇ 2 + ⁇ 3 + ⁇ 4 is reflected by the first filter 151 to one side 111 of the block body 110.
  • the beams having the remaining wavelengths ⁇ 2 + ⁇ 3 + ⁇ 4 except for the first wavelength ⁇ 1 are reflected by one side 111 of the block body 110, and the second filter 152 may be used.
  • the beam of the second wavelength ⁇ 2 is transmitted, and the beams of the third wavelength ⁇ 3 and the fourth wavelength ⁇ 4 are reflected to one side 111 of the block body 110.
  • the beams of the third wavelength ⁇ 3 and the fourth wavelength ⁇ 4 are reflected by one side 111 of the block body 110, and the third wavelength by the third filter 153.
  • the beam of ⁇ 3 is transmitted, and the beam of the fourth wavelength ⁇ 4 is reflected to one side 111 of the block body 110.
  • the beam of the fourth wavelength ⁇ 4 is reflected by one side 111 of the block body 110 and transmitted by the fourth filter 154, thereby providing a multi-wavelength beam ⁇ 1 + ⁇ 2. + lambda 3 + lambda 4) is demultiplexed.
  • the present invention may be provided as one optical demux 200, including the optical demux block 100 and the micro lens array 210 according to the first embodiment of the present invention. have.
  • the optical demux 200 includes the optical demux block 100 and the micro lens array 210, and the optical demux block 100 is described above. Since it is the same as the description, overlapping description will be omitted.
  • the micro lens array 210 is a lens array including a plurality of aspherical micro lenses, and is disposed at a rear end of the filter 150.
  • the micro lens array 210 is a plurality of micro lenses corresponding to the number of the filter 150 is integrally arranged, the photodiode or the rear end receiving the beam transmitted through the filter 150 or Focus on the optical fiber.
  • the optical demux block 100 may be provided as an optical mux block 300 having substantially the same structure.
  • the optical mux block 300 includes a block body 310, a filter 320, a collimating lens 330, a total reflection layer 340, and an antireflection layer 350, and the block body 310,
  • the filter 320, the collimating lens 330, the total reflection layer 340, and the non-reflective layer 350 are each substantially the block body of the optical demux block 100 according to the first embodiment of the present invention. 110, the collimating lens 120, the total reflection layer 130, the antireflection layer 140, the same as the filter 150.
  • the optical demux block 100 demultiplexes a beam of multiple wavelengths incident through one side and transmits it through the other side.
  • the other optical mux block 300 is different in that multiplexed beams incident on the other side are transmitted through one side.
  • a beam of a first wavelength ⁇ 1, a beam of a second wavelength ⁇ 2, a beam of a third wavelength ⁇ 3, and a beam of a fourth wavelength ⁇ 4 are respectively formed through the filter 320. It is incident on the other side of the 310.
  • the beam of the first wavelength ⁇ 1 incident through the first filter 321 is reflected to the second filter 132 by one side of the block body 310 and the second filter 132. Is multiplexed with the beam of the second wavelength [lambda] 2 which is incident through.
  • the beams of the first wavelength ⁇ 1 and the second wavelength ⁇ 2 are reflected by the one side of the block body 310 to the third filter 133, and the second filter 133 Multiplexed with the beam of the third wavelength [lambda] 3 incident through.
  • the beams of the first wavelength ⁇ 1, the second wavelength ⁇ 2, and the third wavelength ⁇ are reflected to the fourth filter 134 by one side of the block body 310.
  • the collimating lens 330 After multiplexing with the beam of the fourth wavelength ⁇ 4 incident through the fourth filter 134, the collimating lens 330 focuses the optical fiber.
  • the present invention can be provided as one optical mux, including the optical mux block 300 and the micro lens array 210 according to the third embodiment of the present invention.
  • optical mux block 300 Since the optical mux block 300 is the same as described above, overlapping description will be omitted.
  • the microlens array is a lens array including a plurality of aspherical microlenses, and is provided in front of the filter 150.
  • the micro lens array is a plurality of micro lenses corresponding to the number of the filter 320 is integrally arranged, and converts the beam incident through the optical fiber into parallel light to be irradiated to the filter 150.
  • the optical demux block and the optical mux block according to the present invention since the collimating lens is integrally formed on one side of the block body, the optical axis alignment between the block body and the collimating lens is unnecessary, and thus the product It is possible to improve the mass production of the, and has the advantage of preventing the loss of the optical signal.
  • Optical demux block and optical mux block according to the present invention can be used in the field of optical communication.
  • the optical demux block and the optical mux block according to the present invention may be applied to a 40 / 100G optical transmission module.
  • a demultiplexer demultiplexing beams of different wavelengths incident thereto, and beams having different wavelengths incident thereto. It can be used as a multiplexer to multiplex.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention concerne un bloc de démultiplexage optique et un bloc de multiplexage et, plus particulièrement, à un bloc de démultiplexage optique et un bloc de multiplexage optique dans lequel une lentille de collimation est formée d'un seul tenant avec une surface latérale d'un corps de bloc de telle sorte qu'un alignement d'axe optique entre la lentille de collimation et le corps de bloc n'est pas nécessaire.
PCT/KR2016/014865 2016-12-19 2016-12-19 Bloc de démultiplexage optique et bloc de multiplexage optique WO2018117278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0173315 2016-12-19
KR20160173315 2016-12-19

Publications (1)

Publication Number Publication Date
WO2018117278A1 true WO2018117278A1 (fr) 2018-06-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609708A (zh) * 2020-12-09 2022-06-10 微凤凰有限公司 第一侧具有非球面表面形状的微透镜阵列

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020131180A1 (en) * 2001-03-16 2002-09-19 Optical Coating Laboratory, Inc. Compact multiple channel multiplexer/demultiplexer devices
US20050069013A1 (en) * 2003-09-29 2005-03-31 Photodigm, Inc. Method and apparatus for wavelength division multiplexing
KR20050051718A (ko) * 2002-11-01 2005-06-01 오므론 가부시키가이샤 광학 합파기/분파기 및 광학 합파기/분파기의 제조 방법
KR101001277B1 (ko) * 2009-07-17 2010-12-14 주식회사 포투 파장 분할 다중화 광 모듈
US20110033152A1 (en) * 2005-07-22 2011-02-10 Tessera North America, Inc. Optical assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020131180A1 (en) * 2001-03-16 2002-09-19 Optical Coating Laboratory, Inc. Compact multiple channel multiplexer/demultiplexer devices
KR20050051718A (ko) * 2002-11-01 2005-06-01 오므론 가부시키가이샤 광학 합파기/분파기 및 광학 합파기/분파기의 제조 방법
US20050069013A1 (en) * 2003-09-29 2005-03-31 Photodigm, Inc. Method and apparatus for wavelength division multiplexing
US20110033152A1 (en) * 2005-07-22 2011-02-10 Tessera North America, Inc. Optical assembly
KR101001277B1 (ko) * 2009-07-17 2010-12-14 주식회사 포투 파장 분할 다중화 광 모듈

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609708A (zh) * 2020-12-09 2022-06-10 微凤凰有限公司 第一侧具有非球面表面形状的微透镜阵列

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