OPTICAL TRANSMISSION MODULE
PROBLEM TO BE SOLVED: To provide an optical transmission module capable of further reducing noise.SOLUTION: An optical transmission module comprises a first semiconductor layer provided with a first electrode, an active layer formed in a stripe shape on the first semiconductor layer, and a second se...
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| creator | YAMAGUCHI YORIYOSHI NAKAMURA ATSUSHI YAMAUCHI TOSHIYA TSUNEMI YOSHIHIRO YASUHARA NOZOMI |
| description | PROBLEM TO BE SOLVED: To provide an optical transmission module capable of further reducing noise.SOLUTION: An optical transmission module comprises a first semiconductor layer provided with a first electrode, an active layer formed in a stripe shape on the first semiconductor layer, and a second semiconductor layer formed in the stripe shape on the active layer, provided with a second electrode, and including a diffraction grating provided along an extension direction of the active layer. The active layer includes a first portion extending at a first stripe width from one end surface, a second portion extending at a second stripe width smaller than the first stripe width from the side opposite to the one end surface, and a connection portion having a taper shape in which the stripe width changes and connecting the first portion and the second portion. In a plan view, the diffraction grating overlaps with the first portion, and does not overlap with the second portion.SELECTED DRAWING: Figure 1
【課題】ノイズをより低減した光送信モジュールを提供する。【解決手段】光送信モジュールは、第１電極が設けられた第１半導体層と、前記第１半導体層の上に、ストライプ状に形成された活性層と、前記活性層の上にストライプ状に形成され、第２電極が設けられ、前記活性層の延伸方向に沿って設けられた回折格子を含む第２半導体層と、を有し、前記活性層は、一方の端面から第１のストライプ幅で延伸する第１部分と、前記一方の端面の反対側から前記第１のストライプ幅よりも小さい第２のストライプ幅で延伸する第２部分と、ストライプ幅が変化して前記第１部分と前記第２部分を接続する接続部分と、を含み、前記回折格子は、平面視において、前記第１部分と重畳し、前記第２部分と重畳しない。【選択図】図１ |
| format | Patent |
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【課題】ノイズをより低減した光送信モジュールを提供する。【解決手段】光送信モジュールは、第１電極が設けられた第１半導体層と、前記第１半導体層の上に、ストライプ状に形成された活性層と、前記活性層の上にストライプ状に形成され、第２電極が設けられ、前記活性層の延伸方向に沿って設けられた回折格子を含む第２半導体層と、を有し、前記活性層は、一方の端面から第１のストライプ幅で延伸する第１部分と、前記一方の端面の反対側から前記第１のストライプ幅よりも小さい第２のストライプ幅で延伸する第２部分と、ストライプ幅が変化して前記第１部分と前記第２部分を接続する接続部分と、を含み、前記回折格子は、平面視において、前記第１部分と重畳し、前記第２部分と重畳しない。【選択図】図１</description><language>eng ; jpn</language><subject>BASIC ELECTRIC ELEMENTS ; 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 ; DEVICES USING STIMULATED EMISSION ; ELECTRICITY ; FREQUENCY-CHANGING ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; 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=2017157583A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170907&DB=EPODOC&CC=JP&NR=2017157583A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAMAGUCHI YORIYOSHI</creatorcontrib><creatorcontrib>NAKAMURA ATSUSHI</creatorcontrib><creatorcontrib>YAMAUCHI TOSHIYA</creatorcontrib><creatorcontrib>TSUNEMI YOSHIHIRO</creatorcontrib><creatorcontrib>YASUHARA NOZOMI</creatorcontrib><title>OPTICAL TRANSMISSION MODULE</title><description>PROBLEM TO BE SOLVED: To provide an optical transmission module capable of further reducing noise.SOLUTION: An optical transmission module comprises a first semiconductor layer provided with a first electrode, an active layer formed in a stripe shape on the first semiconductor layer, and a second semiconductor layer formed in the stripe shape on the active layer, provided with a second electrode, and including a diffraction grating provided along an extension direction of the active layer. The active layer includes a first portion extending at a first stripe width from one end surface, a second portion extending at a second stripe width smaller than the first stripe width from the side opposite to the one end surface, and a connection portion having a taper shape in which the stripe width changes and connecting the first portion and the second portion. In a plan view, the diffraction grating overlaps with the first portion, and does not overlap with the second portion.SELECTED DRAWING: Figure 1
【課題】ノイズをより低減した光送信モジュールを提供する。【解決手段】光送信モジュールは、第１電極が設けられた第１半導体層と、前記第１半導体層の上に、ストライプ状に形成された活性層と、前記活性層の上にストライプ状に形成され、第２電極が設けられ、前記活性層の延伸方向に沿って設けられた回折格子を含む第２半導体層と、を有し、前記活性層は、一方の端面から第１のストライプ幅で延伸する第１部分と、前記一方の端面の反対側から前記第１のストライプ幅よりも小さい第２のストライプ幅で延伸する第２部分と、ストライプ幅が変化して前記第１部分と前記第２部分を接続する接続部分と、を含み、前記回折格子は、平面視において、前記第１部分と重畳し、前記第２部分と重畳しない。【選択図】図１</description><subject>BASIC ELECTRIC ELEMENTS</subject><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>DEVICES USING STIMULATED EMISSION</subject><subject>ELECTRICITY</subject><subject>FREQUENCY-CHANGING</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</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>eNrjZJD2DwjxdHb0UQgJcvQL9vUMDvb091Pw9XcJ9XHlYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBobmhqbmphbGjsZEKQIAq0ghQA</recordid><startdate>20170907</startdate><enddate>20170907</enddate><creator>YAMAGUCHI YORIYOSHI</creator><creator>NAKAMURA ATSUSHI</creator><creator>YAMAUCHI TOSHIYA</creator><creator>TSUNEMI YOSHIHIRO</creator><creator>YASUHARA NOZOMI</creator><scope>EVB</scope></search><sort><creationdate>20170907</creationdate><title>OPTICAL TRANSMISSION MODULE</title><author>YAMAGUCHI YORIYOSHI ; NAKAMURA ATSUSHI ; YAMAUCHI TOSHIYA ; TSUNEMI YOSHIHIRO ; YASUHARA NOZOMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2017157583A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2017</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><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>DEVICES USING STIMULATED EMISSION</topic><topic>ELECTRICITY</topic><topic>FREQUENCY-CHANGING</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</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>YAMAGUCHI YORIYOSHI</creatorcontrib><creatorcontrib>NAKAMURA ATSUSHI</creatorcontrib><creatorcontrib>YAMAUCHI TOSHIYA</creatorcontrib><creatorcontrib>TSUNEMI YOSHIHIRO</creatorcontrib><creatorcontrib>YASUHARA NOZOMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YAMAGUCHI YORIYOSHI</au><au>NAKAMURA ATSUSHI</au><au>YAMAUCHI TOSHIYA</au><au>TSUNEMI YOSHIHIRO</au><au>YASUHARA NOZOMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OPTICAL TRANSMISSION MODULE</title><date>2017-09-07</date><risdate>2017</risdate><abstract>PROBLEM TO BE SOLVED: To provide an optical transmission module capable of further reducing noise.SOLUTION: An optical transmission module comprises a first semiconductor layer provided with a first electrode, an active layer formed in a stripe shape on the first semiconductor layer, and a second semiconductor layer formed in the stripe shape on the active layer, provided with a second electrode, and including a diffraction grating provided along an extension direction of the active layer. The active layer includes a first portion extending at a first stripe width from one end surface, a second portion extending at a second stripe width smaller than the first stripe width from the side opposite to the one end surface, and a connection portion having a taper shape in which the stripe width changes and connecting the first portion and the second portion. In a plan view, the diffraction grating overlaps with the first portion, and does not overlap with the second portion.SELECTED DRAWING: Figure 1
【課題】ノイズをより低減した光送信モジュールを提供する。【解決手段】光送信モジュールは、第１電極が設けられた第１半導体層と、前記第１半導体層の上に、ストライプ状に形成された活性層と、前記活性層の上にストライプ状に形成され、第２電極が設けられ、前記活性層の延伸方向に沿って設けられた回折格子を含む第２半導体層と、を有し、前記活性層は、一方の端面から第１のストライプ幅で延伸する第１部分と、前記一方の端面の反対側から前記第１のストライプ幅よりも小さい第２のストライプ幅で延伸する第２部分と、ストライプ幅が変化して前記第１部分と前記第２部分を接続する接続部分と、を含み、前記回折格子は、平面視において、前記第１部分と重畳し、前記第２部分と重畳しない。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS 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 DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | OPTICAL TRANSMISSION MODULE |
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