GRATING COUPLER, GRATING COUPLER ARRAY, IMAGING OPTICAL SYSTEM, OPTICAL SCANNER, AND LASER RADAR DEVICE
PROBLEM TO BE SOLVED: To provide a grating coupler which when arranged in an array form can increase integration density and facilitate mutual connection, a grating coupler array, an imaging optical system, an optical scanner, and a laser radar device.SOLUTION: The grating coupler comprises: an intr...
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| creator | NAKAO JURI INOUE DAISUKE ICHIKAWA TADASHI YAMASHITA TATSUYA |
| description | PROBLEM TO BE SOLVED: To provide a grating coupler which when arranged in an array form can increase integration density and facilitate mutual connection, a grating coupler array, an imaging optical system, an optical scanner, and a laser radar device.SOLUTION: The grating coupler comprises: an introduction waveguide 16 introducing light; a spot size conversion part 14 having a predetermined width end part connected to one end of the introduction waveguide 16, expanded in a substantially sector form from both ends of the end part, and expanding a spot size of light propagating through the introduction waveguide 16; a diffraction grating part 12 including a plurality of arc-like irregularities formed around a connection between the introduction waveguide 16 and the spot size conversion part 14 and concentrically along a circular arc part of the spot size conversion part 14. A substantially rectangular overall shape is provided by gradually increasing the length of the arc and then decreasing it.SELECTED DRAWING: Figure 1
【課題】アレイ状に配置する場合において、集積密度を高くすると共に、相互の接続を容易にすることが可能なグレーティングカプラ、グレーティングカプラアレイ、結像光学系、光スキャナ、及びレーザレーダ装置を提供すること。【解決手段】光を導入させる導入導波路１６と、導入導波路１６の一端に所定の幅の端部が接続されると共に、端部の両端から略扇形形状に拡大され、かつ導入導波路１６を伝播する光のスポットサイズを拡大するスポットサイズ変換部１４と、導入導波路１６とスポットサイズ変換部１４との接続部分を中心としかつスポットサイズ変換部１４の円弧部に沿って同心円状に形成された複数の円弧状の凹凸からなる回折格子部１２と、を含み、円弧の長さが漸増した後漸減することにより全体の形状が略矩形形状を呈する。【選択図】図１ |
| format | Patent |
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【課題】アレイ状に配置する場合において、集積密度を高くすると共に、相互の接続を容易にすることが可能なグレーティングカプラ、グレーティングカプラアレイ、結像光学系、光スキャナ、及びレーザレーダ装置を提供すること。【解決手段】光を導入させる導入導波路１６と、導入導波路１６の一端に所定の幅の端部が接続されると共に、端部の両端から略扇形形状に拡大され、かつ導入導波路１６を伝播する光のスポットサイズを拡大するスポットサイズ変換部１４と、導入導波路１６とスポットサイズ変換部１４との接続部分を中心としかつスポットサイズ変換部１４の円弧部に沿って同心円状に形成された複数の円弧状の凹凸からなる回折格子部１２と、を含み、円弧の長さが漸増した後漸減することにより全体の形状が略矩形形状を呈する。【選択図】図１</description><language>eng ; jpn</language><subject>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ; FREQUENCY-CHANGING ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170907&DB=EPODOC&CC=JP&NR=2017156634A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170907&DB=EPODOC&CC=JP&NR=2017156634A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAO JURI</creatorcontrib><creatorcontrib>INOUE DAISUKE</creatorcontrib><creatorcontrib>ICHIKAWA TADASHI</creatorcontrib><creatorcontrib>YAMASHITA TATSUYA</creatorcontrib><title>GRATING COUPLER, GRATING COUPLER ARRAY, IMAGING OPTICAL SYSTEM, OPTICAL SCANNER, AND LASER RADAR DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a grating coupler which when arranged in an array form can increase integration density and facilitate mutual connection, a grating coupler array, an imaging optical system, an optical scanner, and a laser radar device.SOLUTION: The grating coupler comprises: an introduction waveguide 16 introducing light; a spot size conversion part 14 having a predetermined width end part connected to one end of the introduction waveguide 16, expanded in a substantially sector form from both ends of the end part, and expanding a spot size of light propagating through the introduction waveguide 16; a diffraction grating part 12 including a plurality of arc-like irregularities formed around a connection between the introduction waveguide 16 and the spot size conversion part 14 and concentrically along a circular arc part of the spot size conversion part 14. A substantially rectangular overall shape is provided by gradually increasing the length of the arc and then decreasing it.SELECTED DRAWING: Figure 1
【課題】アレイ状に配置する場合において、集積密度を高くすると共に、相互の接続を容易にすることが可能なグレーティングカプラ、グレーティングカプラアレイ、結像光学系、光スキャナ、及びレーザレーダ装置を提供すること。【解決手段】光を導入させる導入導波路１６と、導入導波路１６の一端に所定の幅の端部が接続されると共に、端部の両端から略扇形形状に拡大され、かつ導入導波路１６を伝播する光のスポットサイズを拡大するスポットサイズ変換部１４と、導入導波路１６とスポットサイズ変換部１４との接続部分を中心としかつスポットサイズ変換部１４の円弧部に沿って同心円状に形成された複数の円弧状の凹凸からなる回折格子部１２と、を含み、円弧の長さが漸増した後漸減することにより全体の形状が略矩形形状を呈する。【選択図】図１</description><subject>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</subject><subject>FREQUENCY-CHANGING</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZEh3D3IM8fRzV3D2Dw3wcQ3SUUATUHAMCnKM1FHw9HV0Bwn7B4R4Ojv6KARHBoe4-uog-M6Ofn4g_Y5-Lgo-jsFAnUGOLo5BCi6uYZ7OrjwMrGmJOcWpvFCam0HJzTXE2UM3tSA_PrW4IDE5NS-1JN4rwMjA0NzQ1MzM2MTRmChFABzGNUo</recordid><startdate>20170907</startdate><enddate>20170907</enddate><creator>NAKAO JURI</creator><creator>INOUE DAISUKE</creator><creator>ICHIKAWA TADASHI</creator><creator>YAMASHITA TATSUYA</creator><scope>EVB</scope></search><sort><creationdate>20170907</creationdate><title>GRATING COUPLER, GRATING COUPLER ARRAY, IMAGING OPTICAL SYSTEM, OPTICAL SCANNER, AND LASER RADAR DEVICE</title><author>NAKAO JURI ; INOUE DAISUKE ; ICHIKAWA TADASHI ; YAMASHITA TATSUYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2017156634A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2017</creationdate><topic>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</topic><topic>FREQUENCY-CHANGING</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAO JURI</creatorcontrib><creatorcontrib>INOUE DAISUKE</creatorcontrib><creatorcontrib>ICHIKAWA TADASHI</creatorcontrib><creatorcontrib>YAMASHITA TATSUYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKAO JURI</au><au>INOUE DAISUKE</au><au>ICHIKAWA TADASHI</au><au>YAMASHITA TATSUYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>GRATING COUPLER, GRATING COUPLER ARRAY, IMAGING OPTICAL SYSTEM, OPTICAL SCANNER, AND LASER RADAR DEVICE</title><date>2017-09-07</date><risdate>2017</risdate><abstract>PROBLEM TO BE SOLVED: To provide a grating coupler which when arranged in an array form can increase integration density and facilitate mutual connection, a grating coupler array, an imaging optical system, an optical scanner, and a laser radar device.SOLUTION: The grating coupler comprises: an introduction waveguide 16 introducing light; a spot size conversion part 14 having a predetermined width end part connected to one end of the introduction waveguide 16, expanded in a substantially sector form from both ends of the end part, and expanding a spot size of light propagating through the introduction waveguide 16; a diffraction grating part 12 including a plurality of arc-like irregularities formed around a connection between the introduction waveguide 16 and the spot size conversion part 14 and concentrically along a circular arc part of the spot size conversion part 14. A substantially rectangular overall shape is provided by gradually increasing the length of the arc and then decreasing it.SELECTED DRAWING: Figure 1
【課題】アレイ状に配置する場合において、集積密度を高くすると共に、相互の接続を容易にすることが可能なグレーティングカプラ、グレーティングカプラアレイ、結像光学系、光スキャナ、及びレーザレーダ装置を提供すること。【解決手段】光を導入させる導入導波路１６と、導入導波路１６の一端に所定の幅の端部が接続されると共に、端部の両端から略扇形形状に拡大され、かつ導入導波路１６を伝播する光のスポットサイズを拡大するスポットサイズ変換部１４と、導入導波路１６とスポットサイズ変換部１４との接続部分を中心としかつスポットサイズ変換部１４の円弧部に沿って同心円状に形成された複数の円弧状の凹凸からなる回折格子部１２と、を含み、円弧の長さが漸増した後漸減することにより全体の形状が略矩形形状を呈する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | GRATING COUPLER, GRATING COUPLER ARRAY, IMAGING OPTICAL SYSTEM, OPTICAL SCANNER, AND LASER RADAR DEVICE |
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