JP7476906B2 - 光デバイス - Google Patents
光デバイス Download PDFInfo
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- JP7476906B2 JP7476906B2 JP2021565200A JP2021565200A JP7476906B2 JP 7476906 B2 JP7476906 B2 JP 7476906B2 JP 2021565200 A JP2021565200 A JP 2021565200A JP 2021565200 A JP2021565200 A JP 2021565200A JP 7476906 B2 JP7476906 B2 JP 7476906B2
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- 230000003287 optical effect Effects 0.000 title claims description 167
- 239000004065 semiconductor Substances 0.000 claims description 156
- 238000005253 cladding Methods 0.000 claims description 39
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000004038 photonic crystal Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 12
- 238000002834 transmittance Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
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- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
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- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/1003—Waveguide having a modified shape along the axis, e.g. branched, curved, tapered, voids
- H01S5/1014—Tapered waveguide, e.g. spotsize converter
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- 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
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F1/017—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0421—Electrical excitation ; Circuits therefor characterised by the semiconducting contacting layers
- H01S5/0422—Electrical excitation ; Circuits therefor characterised by the semiconducting contacting layers with n- and p-contacts on the same side of the active layer
- H01S5/0424—Electrical excitation ; Circuits therefor characterised by the semiconducting contacting layers with n- and p-contacts on the same side of the active layer lateral current injection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0425—Electrodes, e.g. characterised by the structure
- H01S5/04256—Electrodes, e.g. characterised by the structure characterised by the configuration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/1053—Comprising an active region having a varying composition or cross-section in a specific direction
- H01S5/1064—Comprising an active region having a varying composition or cross-section in a specific direction varying width along the optical axis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
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- 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
- G02B2006/12035—Materials
- G02B2006/12061—Silicon
-
- 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
- G02B2006/12083—Constructional arrangements
- G02B2006/12121—Laser
-
- 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
- G02B6/12004—Combinations of two or more optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0206—Substrates, e.g. growth, shape, material, removal or bonding
- H01S5/021—Silicon based substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0425—Electrodes, e.g. characterised by the structure
- H01S5/04256—Electrodes, e.g. characterised by the structure characterised by the configuration
- H01S5/04257—Electrodes, e.g. characterised by the structure characterised by the configuration having positive and negative electrodes on the same side of the substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/11—Comprising a photonic bandgap structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/12—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
- H01S5/125—Distributed Bragg reflector [DBR] lasers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Semiconductor Lasers (AREA)
- Optical Integrated Circuits (AREA)
Description
Claims (7)
- クラッド層と、
前記クラッド層の上に形成された化合物半導体からなるコアと、
前記コアの活性領域に埋め込まれた活性層と、
前記クラッド層の上に形成され、前記活性領域を挟み、前記コアの側面に接して形成されたn型の化合物半導体からなる第1半導体層およびp型の化合物半導体からなる第2半導体層と、
前記クラッド層の上に形成され、前記第1半導体層を前記活性領域との間で挾むように配置され、前記第1半導体層に接続されたn型の化合物半導体からなる第3半導体層と、
前記クラッド層の上に形成され、前記第2半導体層を前記活性領域との間で挾むように配置され、前記第2半導体層に接続されたp型の化合物半導体からなる第4半導体層と、
前記第3半導体層に接続された第1電極と、
前記第4半導体層に接続された第2電極と
を備え、
前記第1半導体層および前記第2半導体層は、前記コアより薄く形成され、
前記活性層は、導波方向の端部が先端に行くほど先細りの形状を有し、
前記第1半導体層は、平面視で前記コアの側から前記第3半導体層の側に行くほど幅が狭くなる台形の形状を有し、導波方向の一端が、前記活性領域の中央部から離れるほど、幅が狭くなる第1テーパ領域を備え、
前記第2半導体層は、平面視で前記コアの側から前記第4半導体層の側に行くほど幅が狭くなる台形の形状を有し、導波方向の一端が、前記活性領域の中央部から離れるほど、幅が狭くなる第2テーパ領域を備え、
前記コアは、前記クラッド層の上に厚さ250nmに形成され、
前記第1半導体層および前記第2半導体層は、前記クラッド層の上に厚さ50nmに形成されている
ことを特徴とする光デバイス。 - 請求項1記載の光デバイスにおいて、
前記第1半導体層は、導波方向の他端が、前記活性領域の中央部から離れるほど、幅が狭くなる第3テーパ領域を備え、
前記第2半導体層は、導波方向の他端が、前記活性領域の中央部から離れるほど、幅が狭くなる第4テーパ領域を備える
ことを特徴とする光デバイス。 - 請求項1または2記載の光デバイスにおいて、
前記コアは、前記活性領域の一端に、前記活性領域から離れるほど平面視で幅が狭くなる第5テーパ領域を備えることを特徴とする光デバイス。 - 請求項3記載の光デバイスにおいて、
前記コアは、前記活性領域の他端に、前記活性領域から離れるほど平面視で幅が狭くなる第6テーパ領域を備えることを特徴とする光デバイス。 - 請求項1~4のいずれか1項に記載の光デバイスにおいて、
導波方向に前記活性領域を挟んで形成された共振器をさらに備えることを特徴とする光デバイス。 - 請求項5記載の光デバイスにおいて、
前記共振器は、前記コアに形成されたフォトニック結晶構造から構成されていることを特徴とする光デバイス。 - 請求項5記載の光デバイスにおいて、
前記共振器は、前記コアの上に形成された回折格子から構成されていることを特徴とする光デバイス。
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PCT/JP2019/049362 WO2021124440A1 (ja) | 2019-12-17 | 2019-12-17 | 光デバイス |
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JP7476906B2 true JP7476906B2 (ja) | 2024-05-01 |
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US (1) | US20230009186A1 (ja) |
JP (1) | JP7476906B2 (ja) |
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Cited By (1)
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JP7548336B2 (ja) | 2021-01-18 | 2024-09-10 | 日本電信電話株式会社 | 半導体レーザ |
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WO2023233567A1 (ja) * | 2022-06-01 | 2023-12-07 | 日本電信電話株式会社 | 光デバイス |
WO2024105764A1 (ja) * | 2022-11-15 | 2024-05-23 | 日本電信電話株式会社 | 光デバイス |
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- 2019-12-17 WO PCT/JP2019/049362 patent/WO2021124440A1/ja active Application Filing
- 2019-12-17 JP JP2021565200A patent/JP7476906B2/ja active Active
- 2019-12-17 US US17/783,334 patent/US20230009186A1/en active Pending
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JP7548336B2 (ja) | 2021-01-18 | 2024-09-10 | 日本電信電話株式会社 | 半導体レーザ |
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