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公开(公告)号：US20240088621A1
公开(公告)日：2024-03-14
申请号：US18517854
申请日：2023-11-22
发明人： Christopher Doerr
CPC分类号： H01S5/0262 , H01S5/0265 , H01S5/146 , H01S5/50
摘要： A system including an optical transceiver, including a first portion of a laser cavity operable to output optical energy; and an optical modulator operable to modulate the optical energy output by the laser; and a temperature-controlled optical gain subassembly optically coupled to the optical transceiver, the optical gain subassembly including a plurality of semiconductor optical amplifiers (SOAs), wherein one SOA of the plurality of SOAs is operable to amplify the optical energy inside a laser cavity.
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公开(公告)号：US20180269654A1
公开(公告)日：2018-09-20
申请号：US15811937
申请日：2017-11-14
发明人： Yi Zhang , Shuyu Yang , Michael J. Hochberg , Thomas Wetteland Baehr-Jones , Saeed Fathololoumi
CPC分类号： H01S5/141 , H01S3/005 , H01S3/0078 , H01S3/10053 , H01S3/1062 , H01S5/021 , H01S5/0607 , H01S5/0612 , H01S5/06804 , H01S5/06821 , H01S5/1032 , H01S5/1096 , H01S5/14 , H01S5/142 , H01S5/146 , H01S5/3412 , H01S5/343 , H01S5/4062
摘要： A hybrid single or multi-wavelength laser using an optical gain element, such as a semiconductor optical amplifier (SOA), for example a QD RSOA, and a semiconductor, e.g. silicon, photonics chip is demonstrated. A plurality, e.g. four, lasing modes at a predetermined, e.g. 2 nm, spacing and less than 3 dB power non-uniformity may be observed, with over 20 mW of total output power. Each lasing peak can be successfully modulated at 10 Gb/s. At 10−9 BER, the receiver power penalty is less than 2.6 dB compared to a conventional commercial laser. An expected application is the provision of a comb laser source for WDM transmission in optical interconnection systems.
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公开(公告)号：US10009136B2
公开(公告)日：2018-06-26
申请号：US15583526
申请日：2017-05-01
IPC分类号： H04B10/27 , H04J14/00 , H04J14/02 , H01S3/08 , H01S5/14 , H01S3/10 , H01S3/106 , H01S5/065 , H01S5/00 , H04Q11/00 , H04J14/06 , H04B10/2507 , H04B10/50
CPC分类号： H04J14/0246 , H01S3/08027 , H01S3/08054 , H01S3/10061 , H01S3/106 , H01S3/1062 , H01S5/0064 , H01S5/0078 , H01S5/02438 , H01S5/0656 , H01S5/1021 , H01S5/141 , H01S5/143 , H01S5/146 , H01S2301/14 , H01S2301/163 , H04B10/2572 , H04B10/501 , H04B10/505 , H04B10/572 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/06 , H04Q11/0067 , H04Q2011/0009 , H04Q2011/0032 , H04Q2011/0035
摘要： Methods, systems, and apparatus, for an external cavity FP laser. In one aspect, an apparatus is provided that includes a FP laser diode; a Faraday rotator (FR) coupled to receive an optical output of the FP laser diode and that rotates a polarization of the optical output; an optical fiber coupled at a first end to receive the output of the FR; a WDM filter coupled to a second end of the optical fiber to receive the optical signal from the optical fiber; and a FRM coupled directly or indirectly to an output of the WDM filter, wherein an optical output of the WDM filter is partially reflected by the FRM such that the polarization of a reflected beam is rotated, and wherein the reflected optical signal then passes through the FR with its polarization being rotated by the FR before it is injected back into the FP laser diode.
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公开(公告)号：US09923328B2
公开(公告)日：2018-03-20
申请号：US15328485
申请日：2015-07-15
CPC分类号： H01S3/0405 , G02B6/4269 , G02B6/46 , G02B7/20 , H01S3/0407 , H01S3/042 , H01S3/067 , H01S3/06704 , H01S5/146
摘要： A cooling device that enables the tip position of optical fiber to be adjusted and is able to efficiently cool an entirely of the optical fiber. This cooling device is provided with a cooling base plate, a fiber holder and an adjustment member. The cooling base plate has a recessed accommodating part. The fiber holder is disposed in the recessed accommodating part so as to be freely movable in a first direction. The adjustment member is disposed in a gap between the fiber holder and an end face of the recessed accommodating part and is movable in the first direction by moving in a second direction that intersects the first direction. The adjustment member abuts against both the end face of the recessed accommodating part and an end face of the fiber holder.
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公开(公告)号：US20180003482A1
公开(公告)日：2018-01-04
申请号：US15644668
申请日：2017-07-07
发明人： Joseph M. Schmitt
CPC分类号： G01B9/02091 , A61B5/0066 , A61B5/0073 , G01B9/02004 , G01B9/02043 , G01B9/02069 , G01B2290/25 , G01B2290/60 , H01S3/1062 , H01S5/141 , H01S5/146 , H01S5/5036
摘要： In one embodiment of the invention, a semiconductor optical amplifier (SOA) in a laser ring is chosen to provide low polarization-dependent gain (PDG) and a booster semiconductor optical amplifier, outside of the ring, is chosen to provide high polarization-dependent gain. The use of a semiconductor optical amplifier with low polarization-dependent gain nearly eliminates variations in the polarization state of the light at the output of the laser, but does not eliminate the intra-sweep variations in the polarization state at the output of the laser, which can degrade the performance of the SS-OCT system.
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公开(公告)号：US20170331246A1
公开(公告)日：2017-11-16
申请号：US15492364
申请日：2017-04-20
申请人： II-VI Incorporated
发明人： Nadhum Kadhum Zayer
IPC分类号： H01S3/108 , H01S5/0687 , G02B6/02
CPC分类号： H01S3/108 , G02B6/0208 , G02B6/4201 , G02B6/424 , G02B6/4248 , G02B6/4251 , G02B6/4256 , G02B6/4257 , G02B6/4269 , G02B6/4277 , H01S3/067 , H01S5/02216 , H01S5/02252 , H01S5/02284 , H01S5/0287 , H01S5/0687 , H01S5/101 , H01S5/1085 , H01S5/1212 , H01S5/141 , H01S5/146
摘要： A compact, wavelength-stabilized laser source is provided by utilizing a specialty gain element (i.e., formed to include a curved waveguide topology), where a separate wavelength stabilization component (for example, a fiber Bragg grating (FBG)) is used one of the mirrors for the laser cavity. That is, the FBG takes the place of the physical “front facet” of the gain element, and functions to define the laser cavity in the first instance, while also utilizing the grating structure to impart the desired wavelength stability to the output from the packaged laser source. As a result, the FBG is disposed within the same package used to house the gain element and provides a wavelength-stabilized laser source in a compact form.
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公开(公告)号：US09800019B2
公开(公告)日：2017-10-24
申请号：US14630752
申请日：2015-02-25
CPC分类号： H01S5/0657 , G01B9/02004 , G01B9/02067 , G01B9/02069 , G01B9/02091 , H01S3/105 , H01S5/1039 , H01S5/141 , H01S5/146 , H01S5/3013
摘要： An optical coherence analysis system uses a laser swept source that is constrained to operate in a stable mode locked condition by modulating a drive current to the semiconductor optical amplifier as function of wavelength or synchronously with the drive voltage of the laser's tunable element based on stability map for the laser.
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公开(公告)号：US09726539B2
公开(公告)日：2017-08-08
申请号：US15248230
申请日：2016-08-26
申请人： OMNI MEDSCI, INC.
发明人： Mohammed N. Islam
IPC分类号： G02B6/00 , G01J3/10 , H01S3/30 , G01B9/02 , G01J3/02 , H01S5/00 , H01S5/10 , H01S5/14 , G01J3/42 , G02B6/293 , G02F1/365 , H01S5/40 , G02F1/35 , H01S3/067 , H01S3/094 , H01S3/102
CPC分类号： G01J3/108 , G01B9/02091 , G01J3/0218 , G01J3/0245 , G01J3/42 , G01J2003/102 , G01J2003/423 , G02B6/29349 , G02F1/365 , G02F2001/3528 , G02F2202/32 , H01S3/06725 , H01S3/06754 , H01S3/094007 , H01S3/094069 , H01S3/094076 , H01S3/1024 , H01S3/302 , H01S5/0064 , H01S5/0085 , H01S5/0092 , H01S5/1092 , H01S5/146 , H01S5/4012 , H01S2301/085
摘要： A white light spectroscopy system includes a super continuum light source having an input light source including semiconductor diodes to generate an input beam having a wavelength shorter than 2.5 microns. The light source includes a cladding-pumped fiber optical amplifier to receive the input beam, and a photonic crystal fiber to receive the amplified optical beam to broaden the spectral width to 100 nm or more forming an output beam in the visible wavelength range. The output beam is pulsed with a repetition rate of 1 Megahertz or higher. The system also includes a lens and/or mirror to receive the output beam, to send the output beam to a scanning stage, and to deliver the received output beam to a sample. A detection system includes dispersive optics and narrow band filters followed by one or more detectors to permit approximately simultaneous measurement of at least two wavelengths from the sample.
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公开(公告)号：US20170214208A1
公开(公告)日：2017-07-27
申请号：US15328485
申请日：2015-07-15
CPC分类号： H01S3/0405 , G02B6/4269 , G02B6/46 , G02B7/20 , H01S3/0407 , H01S3/042 , H01S3/067 , H01S3/06704 , H01S5/146
摘要： A cooling device that enables the tip position of optical fiber to be adjusted and is able to efficiently cool an entirely of the optical fiber. This cooling device is provided with a cooling base plate, a fiber holder and an adjustment member. The cooling base plate has a recessed accommodating part. The fiber holder is disposed in the recessed accommodating part so as to be freely movable in a first direction. The adjustment member is disposed in a gap between the fiber holder and an end face of the recessed accommodating part and is movable in the first direction by moving in a second direction that intersects the first direction. The adjustment member abuts against both the end face of the recessed accommodating part and an end face of the fiber holder.
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公开(公告)号：US20170093126A1
公开(公告)日：2017-03-30
申请号：US15375550
申请日：2016-12-12
申请人： NGK INSULATORS, LTD.
发明人： Jungo KONDO , Shoichiro YAMAGUCHI , Tetsuya EJIRI
IPC分类号： H01S5/14
CPC分类号： H01S5/141 , G02B6/42 , H01S5/10 , H01S5/1003 , H01S5/1014 , H01S5/1025 , H01S5/1215 , H01S5/1237 , H01S5/14 , H01S5/146
摘要： An external resonator type light-emitting device includes a light source oscillating a semiconductor laser light and a grating element configuring an external resonator together with the light source. The light source includes an active layer oscillating the semiconductor laser light. The grating element includes an optical waveguide and a plurality of Bragg gratings formed in the optical waveguide. The optical waveguide includes an incident face on which the semiconductor laser light is incident and an emitting face from which an emitting light having a desired wavelength is emitted.
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