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公开(公告)号：US20240356305A1
公开(公告)日：2024-10-24
申请号：US18760508
申请日：2024-07-01
Applicant: TERAXION INC.
Inventor： Sylvain BOUDREAU , Keven BÉDARD , Michel MORIN , François COSTIN , André BABIN , Simon AYOTTE
CPC classification number: H01S5/32 , H01S5/0655 , H01S5/125
Abstract: A semiconductor laser comprising a single mode laser cavity having a stack of semiconducting layers defining a transversal p-n junction is provided. A plurality of electrodes are coupled to corresponding sections of the laser cavity along the longitudinal light propagation direction, each corresponding section defining one of an amplification section or a modulation section. One or more DC sources are coupled to the electrodes associated with the amplification sections to forward-bias the p-n junction above transparency, so as to provide gain in the associated amplification sections. One or more modulation signal sources are coupled to the electrodes associated with the modulation sections, and apply a modulation signal across the p-n junction below transparency, the modulation signal providing a modulation of an output optical frequency of the semiconductor laser. Each modulation section is operated in photovoltaic mode.
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公开(公告)号：US20190339446A1
公开(公告)日：2019-11-07
申请号：US16515132
申请日：2019-07-18
Applicant: TERAXION INC.
Inventor： Guillaume BROCHU , Michel MORIN , Françios TRÉPANIER
IPC: G02B6/02
Abstract: Optical fiber filters and uses thereof are presented. In typical implementations, there is provided a FBG taking deleterious light out of a fiber core without reflecting it into the fiber core. It also allows the unhindered transmission of useful light at a wavelength outside of the spectral band covered by the deleterious light. The filter couples the incoming deleterious light to cladding modes propagating in the opposite direction without coupling the incoming useful light to core or cladding modes propagating in the opposite direction. The filter may for example be useful as a Raman or ASE filter in a laser cavity of other optical devices.
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公开(公告)号：US20220123526A1
公开(公告)日：2022-04-21
申请号：US17384135
申请日：2021-07-23
Applicant: TeraXion Inc.
Inventor： Sylvain BOUDREAU , Keven BÉDARD , Michel MORIN , François COSTIN , André BABIN , Simon AYOTTE
Abstract: A semiconductor laser comprising a single mode laser cavity having a stack of semiconducting layers defining a transversal p-n junction is provided. A plurality of electrodes are coupled to corresponding sections of the laser cavity along the longitudinal light propagation direction, each corresponding section defining one of an amplification section or a modulation section. One or more DC sources are coupled to the electrodes associated with the amplification sections to forward-bias the p-n junction above transparency, so as to provide gain in the associated amplification sections. One or more modulation signal sources are coupled to the electrodes associated with the modulation sections, and apply a modulation signal across the p-n junction below transparency, the modulation signal providing a modulation of an output optical frequency of the semiconductor laser. Each modulation section is operated in photovoltaic mode.
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公开(公告)号：US20220091327A1
公开(公告)日：2022-03-24
申请号：US17541867
申请日：2021-12-03
Applicant: TERAXION INC.
Inventor： Guillaume BROCHU , Michel MORIN , François TRÉPANIER
IPC: G02B6/02
Abstract: Optical fiber filters and uses thereof are presented. In typical implementations, there is provided a FBG taking deleterious light out of a fiber core without reflecting it into the fiber core. It also allows the unhindered transmission of useful light at a wavelength outside of the spectral band covered by the deleterious light. The filter couples the incoming deleterious light to cladding modes propagating in the opposite direction without coupling the incoming useful light to core or cladding modes propagating in the opposite direction. The filter may for example be useful as a Raman or ASE filter in a laser cavity of other optical devices.
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