公开(公告)号：US20210396669A1

公开(公告)日：2021-12-23

申请号：US17407257

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US20210389242A1

公开(公告)日：2021-12-16

申请号：US17407263

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US20160359298A1

公开(公告)日：2016-12-08

申请号：US15172338

申请日：2016-06-03

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Mijin Kim ,  Charles D. Merritt

IPC分类号： H01S5/12 ,  H01S5/22 ,  H01S5/34

CPC分类号： H01S5/3402 ,  H01S5/0424 ,  H01S5/0425 ,  H01S5/1231 ,  H01S5/1234 ,  H01S5/22 ,  H01S2301/176

摘要： A DFB laser having a reduced fill factor and reduced loss. A plurality of spaced-apart contact openings are etched into a dielectric layer situated on top of a laser ridge having a DFB grating layer so that electrical contact between the metal top contact layer and the DFB gratings is made only in the etched openings, since all other areas of the top surface of the DFB-grated laser ridge are insulated from the metal contact layer by the dielectric. The size and shape of contact openings and their spacing are configured so that the ratio of the total area of the openings to the total area of the laser ridge provides a fill factor of less than 100%.

摘要翻译： DFB激光器具有减小的填充因子和减少的损耗。 多个间隔开的接触开口被蚀刻到位于具有DFB光栅层的激光脊的顶部的电介质层中，使得金属顶部接触层和DFB光栅之间的电接触仅在蚀刻开口中形成，因为全部 DFB磨光激光脊顶表面的其他区域通过电介质与金属接触层绝缘。 接触开口的尺寸和形状及其间距被构造成使得开口的总面积与激光脊的总面积的比率提供小于100％的填充系数。

公开(公告)号：US11703453B2

公开(公告)日：2023-07-18

申请号：US17407230

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22 ,  H01S5/06 ,  H01S5/062

CPC分类号： G01N21/59 ,  G01J3/1895 ,  G01J3/2803 ,  G01N21/255 ,  G01N21/27 ,  G02B6/102 ,  H01S5/0215 ,  H01S5/0262 ,  H01S5/0287 ,  H01S5/0421 ,  H01S5/101 ,  H01S5/125 ,  H01S5/2063 ,  H01S5/2206 ,  H01S5/3402 ,  H01S5/343 ,  G01N2201/0612 ,  H01S5/062 ,  H01S5/0612

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US11619583B2

公开(公告)日：2023-04-04

申请号：US17407246

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22 ,  H01S5/06 ,  H01S5/062

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US20210396667A1

公开(公告)日：2021-12-23

申请号：US17407239

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US20210396666A1

公开(公告)日：2021-12-23

申请号：US17407230

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US20210396664A1

公开(公告)日：2021-12-23

申请号：US17407216

申请日：2021-08-20

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US11125689B2

公开(公告)日：2021-09-21

申请号：US16509613

申请日：2019-07-12

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  R. Joseph Weiblen ,  Mijin Kim

IPC分类号： G01N21/59 ,  H01S5/028 ,  H01S5/10 ,  H01S5/125 ,  H01S5/34 ,  H01S5/343 ,  H01S5/042 ,  H01S5/20 ,  H01S5/02 ,  H01S5/026 ,  G02B6/10 ,  G01N21/27 ,  G01N21/25 ,  G01J3/18 ,  G01J3/28 ,  H01S5/22 ,  H01S5/06 ,  H01S5/062

摘要： Building blocks are provided for on-chip chemical sensors and other highly-compact photonic integrated circuits combining interband or quantum cascade lasers and detectors with passive waveguides and other components integrated on a III-V or silicon. A MWIR or LWIR laser source is evanescently coupled into a passive extended or resonant-cavity waveguide that provides evanescent coupling to a sample gas (or liquid) for spectroscopic chemical sensing. In the case of an ICL, the uppermost layer of this passive waveguide has a relatively high index of refraction that enables it to form the core of the waveguide, while the ambient air, consisting of the sample gas, functions as the top cladding layer. A fraction of the propagating light beam is absorbed by the sample gas if it contains a chemical species having a fingerprint absorption feature within the spectral linewidth of the laser emission.

公开(公告)号：US10461202B2

公开(公告)日：2019-10-29

申请号：US16378598

申请日：2019-04-09

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Jerry R. Meyer ,  Igor Vurgaftman ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  Chul Soo Kim ,  Charles D. Merritt ,  Michael V. Warren ,  Mijin Kim

IPC分类号： H01L31/0232 ,  H01L31/105 ,  H01L31/109 ,  G01N21/00 ,  H01L31/0304 ,  G02B6/124 ,  G02B6/12 ,  G01N21/552 ,  G01N21/3504 ,  G01N21/77

摘要： Resonant-cavity infrared photodetector (RCID) devices that include a thin absorber layer contained entirely within the resonant cavity. In some embodiments, the absorber is a single type-II InAs—GaSb interface situated between an AlSb/InAs superlattice n-type region and a p-type AlSb/GaSb region. In other embodiments, the absorber region comprises quantum wells formed on an upper surface of the n-type region. In other embodiments, the absorber region comprises a “W”-structured quantum well situated between two barrier layers, the “W”-structured quantum well comprising a hole quantum well sandwiched between two electron quantum wells. In other embodiments, the RCID includes a thin absorber region and an nBn or pBp active core within a resonant cavity. In some embodiments, the RCID is configured to absorb incident light propagating in the direction of the epitaxial growth of the RCID structure, while in other embodiments, it absorbs light propagating in the epitaxial plane of the structure.