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公开(公告)号：US11152764B1
公开(公告)日：2021-10-19
申请号：US16688908
申请日：2019-11-19
摘要： An optical device is provided that includes a waveguide layer and at least one grating structure. A coupling coefficient of the at least one grating structure to a fundamental optical mode supported by the waveguide layer is greater than a coupling coefficient of the at least one grating structure to at least one higher order transverse optical mode supported by the waveguide layer.
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公开(公告)号：US20180287343A1
公开(公告)日：2018-10-04
申请号：US15962972
申请日：2018-04-25
CPC分类号： H01S5/1209 , H01S5/026 , H01S5/0425 , H01S5/06256 , H01S5/06258 , H01S5/0653 , H01S5/068 , H01S5/1234 , H01S5/125 , H01S5/142 , H01S5/34
摘要： A laser comprising a laser cavity formed by a broadband mirror and a comb mirror having a plurality of reflection peaks. A spacing between the plurality of reflection peaks is adjusted such that only one reflection peak is in a gain bandwidth of the laser.
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公开(公告)号：US20240063601A1
公开(公告)日：2024-02-22
申请号：US18167777
申请日：2023-02-10
IPC分类号： H01S5/024 , H01S5/0225 , H01S5/40 , H01S5/06 , H01S5/068
CPC分类号： H01S5/024 , H01S5/0225 , H01S5/40 , H01S5/0612 , H01S5/068
摘要： An optical apparatus comprising at least two optoelectronic devices fabricated on the same substrate and in thermal communication with each other. A first optoelectronic device is configured to generate optical signals and provide them to an optical system via an optical output port. A second optoelectronic device is configured to provide heat compensation for the first optoelectronic device. An electrical circuitry provides first electrical signals to the first optoelectronic device and second electrical signals to the second optoelectronic device. The electrical circuitry is configured to adjust at least the second electrical signals to controllably adjust a temperature of the first optoelectronic device.
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公开(公告)号：US20240014632A1
公开(公告)日：2024-01-11
申请号：US18337374
申请日：2023-06-19
CPC分类号： H01S5/125 , H01S5/0612 , H01S5/1209 , H01S5/0262 , H01S5/02415 , H01S5/0614 , H01S5/145
摘要： A laser comprising a laser cavity formed by a first optical reflector, a gain region, a second optical reflector having a plurality of reflection peaks, and at least one optically active region. The first mirror may be a DBR or comb mirror and the second mirror may be a comb mirror. The spectral reflectance of the second optical reflector is adjusted at least partially based on an electric signal received form the optically active region such that only one reflection peak is aligned with a cavity mode formed by the first and second reflector.
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公开(公告)号：US11721951B2
公开(公告)日：2023-08-08
申请号：US17021993
申请日：2020-09-15
CPC分类号： H01S5/125 , H01S5/0262 , H01S5/02415 , H01S5/0612 , H01S5/0614 , H01S5/1209 , H01S5/145
摘要： A laser comprising a laser cavity formed by a first optical reflector, a gain region, a second optical reflector having a plurality of reflection peaks, and at least one optically active region. The first mirror may be a DBR or comb mirror and the second mirror may be a comb mirror. The spectral reflectance of the second optical reflector is adjusted at least partially based on an electric signal received form the optically active region such that only one reflection peak is aligned with a cavity mode formed by the first and second reflector.
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公开(公告)号：US20230023686A1
公开(公告)日：2023-01-26
申请号：US17806460
申请日：2022-06-10
发明人： Paul Orville Leisher , Jenna Nicole Campbell , Gordon Barbour Morrison , Leif Albin Johansson , Milan Lazar Mashanovitch , Michelle Helena Labrecque
IPC分类号： H01S5/042 , H01S5/068 , H01S5/0683 , H01S5/50 , H01S5/20
摘要： An optical device is provided that includes an active waveguide having a top electrode and a plurality of layers including a gain layer. Configurations are disclosed for the active waveguide to enable amplification of a guided optical wave profile while preserving a shape of a lateral optical intensity profile of the guided optical wave as the guided optical wave is amplified along the waveguide. The top electrode and/or one or more layers of the active optical waveguide may be tailored to provide a tailored optical gain.
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公开(公告)号：US20230387654A1
公开(公告)日：2023-11-30
申请号：US18361421
申请日：2023-07-28
IPC分类号： H01S5/024 , H01S5/0225 , H01S5/40 , H01S5/06 , H01S5/068
CPC分类号： H01S5/024 , H01S5/0225 , H01S5/40 , H01S5/0612 , H01S5/068
摘要： An optical apparatus comprising at least two optoelectronic devices fabricated on the same substrate and in thermal communication with each other. A first optoelectronic device is configured to generate optical signals and provide them to an optical system via an optical output port. A second optoelectronic device is configured to provide heat compensation for the first optoelectronic device. An electrical circuitry provides first electrical signals to the first optoelectronic device and second electrical signals to the second optoelectronic device. The electrical circuitry is configured to adjust at least the second electrical signals to controllably adjust a temperature of the first optoelectronic device.
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公开(公告)号：US20230026282A1
公开(公告)日：2023-01-26
申请号：US17025962
申请日：2020-09-18
摘要： An optical system comprising an optoelectronic device having a facet and a coating on the facet. The facet is configured to be in optical communication with at least a first optical medium during a first time period and a second optical medium during a second time period. The first optical medium has a first refractive index and the second optical medium has a second refractive index different from the first refractive index. The coating is configured to provide a first reflectance during the first time period for optical signals in a predetermined wavelength range and to provide a second reflectance during the second time period for optical signals in the predetermined wavelength range wherein the second reflectance is equal to the first reflectance within a negligible margin for optical signals having at least one wavelength in the predetermined wavelength range.
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公开(公告)号：US11251584B2
公开(公告)日：2022-02-15
申请号：US16431285
申请日：2019-06-04
摘要： A tunable wavelength laser comprising a laser cavity formed by a broadband mirror and a comb mirror. The laser cavity comprising a gain region. The laser cavity is configured such that a non-integer number of cavity modes of the laser cavity are between two consecutive reflection peaks of the comb mirror.
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公开(公告)号：US20200183195A1
公开(公告)日：2020-06-11
申请号：US16213917
申请日：2018-12-07
摘要： Devices configured to determine wavelength of light, monitoring wavelength or provide a reference wavelength are disclosed. The devices can comprise a plurality of etalons. The plurality of peaks in the transmission or reflection spectrum of different etalons of the plurality of etalons can be phase shifted with respect to each other in wavelength space. The plurality of etalons can comprise materials with different group index of refraction or materials with different thermal responses. Phase shift of the plurality of peaks in the transmission or reflection spectrum of different etalons in wavelength space can be accomplished by changing the relative temperature between the different etalons.
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