公开(公告)号：US10811845B2

公开(公告)日：2020-10-20

申请号：US13772694

申请日：2013-02-21

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/32 ,  H01S5/40 ,  H01S5/12 ,  H01S5/187 ,  H01S5/42 ,  H01S5/22 ,  H01S5/34 ,  H01S5/227 ,  G01N21/59 ,  B82Y20/00

Abstract: Multi-surface emitting mid-IR multiwavelength distributed-feedback quantum cascade ring lasers laid out in a concentric circle are disclosed. The lasers utilize quantum cascade core designs to produce optical gain in the mid-infrared region and may generate several wavelengths simultaneously or sequentially. Methods of making along with methods of using such devices are also disclosed.

公开(公告)号：US10431957B2

公开(公告)日：2019-10-01

申请号：US15449388

申请日：2017-03-03

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/34 ,  H01S5/026 ,  H01S5/40 ,  H01S5/343 ,  H01S5/06 ,  H01S5/125 ,  B82Y20/00 ,  H01S5/30

Abstract: Disclosed is a laser source capable of producing mid-IR laser radiation comprises growing a first core structure on a substrate, etching away the first core structure in one or more locations, and growing a second core structure on the substrate. At least one of the core structures comprises a quantum cascade gain medium emitting at a frequency within the range from 3-14 μm. Also disclosed is a laser source capable of producing mid-IR laser radiation comprising a quantum-cascade core positioned on a substrate for emitting within the range from 3-14 μm and a second core on the substrate positioned in-plane relative to the first core. The second core is one of a) a passive waveguide core b) a second quantum-cascade core and c) a semiconductor active core region.

公开(公告)号：US09948063B2

公开(公告)日：2018-04-17

申请号：US15355478

申请日：2016-11-18

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/20 ,  G02B6/10 ,  G01N21/17 ,  H01S5/0625 ,  H01S5/10 ,  H01S5/12 ,  H01S5/34 ,  H01S5/40 ,  B82Y20/00 ,  H01S5/343 ,  H01S5/028

CPC classification number: H01S5/20 ,  B82Y20/00 ,  G01N21/17 ,  G02B6/102 ,  H01S5/028 ,  H01S5/06258 ,  H01S5/1032 ,  H01S5/1215 ,  H01S5/3401 ,  H01S5/3402 ,  H01S5/34313 ,  H01S5/4087 ,  H01S2301/166

Abstract: Concatenated distributed feedback lasers having novel waveguides are disclosed. The waveguides allow for coupling of the laser beam between active and passive waveguide structures and improved device design and output efficiency. Methods of making along with methods of using such devices are also disclosed.

公开(公告)号：US20160268772A1

公开(公告)日：2016-09-15

申请号：US15160634

申请日：2016-05-20

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Lawrence Charles Hughes ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/0687 ,  H01S5/125 ,  H01S5/00 ,  H01S5/34 ,  H01S5/12

CPC classification number: H01S5/0687 ,  B82Y20/00 ,  H01S3/1055 ,  H01S5/0014 ,  H01S5/028 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/1096 ,  H01S5/1218 ,  H01S5/1228 ,  H01S5/125 ,  H01S5/3401 ,  H01S5/3402 ,  H01S5/4043 ,  H01S5/4087

Abstract: A method of characterizing a monolithic tunable mid-infrared laser including a heterogeneous quantum cascade active region together with a least first and a second tunable integrated distributed feedback gratings, the method including operating the laser while tuning the first grating through its full tuning range, while holding the reflectivity function of the second grating constant, then operating the laser while tuning the second grating through its full tuning range, while holding the reflectivity function of the first grating constant.

Abstract translation: 一种表征包括异质量子级联有源区的单片可调谐中红外激光与至少第一和第二可调谐集成分布式反馈光栅的方法，所述方法包括在通过其整个调谐范围调谐第一光栅的同时操作激光器，同时 保持第二光栅的反射率函数恒定，然后在保持第一光栅的反射率函数保持恒定的同时调谐第二光栅通过其整个调谐范围来操作激光器。

公开(公告)号：US20160197454A1

公开(公告)日：2016-07-07

申请号：US14985776

申请日：2015-12-31

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/026 ,  H01S5/20 ,  H01S5/02 ,  H01S5/34

CPC classification number: H01S5/026 ,  H01S5/0208 ,  H01S5/06256 ,  H01S5/2031 ,  H01S5/2206 ,  H01S5/3401 ,  H01S5/3402 ,  H01S2301/185

Abstract: Disclosed is a semiconductor optical emitter having an optical mode and a gain section, the emitter comprising a low loss waveguide structure made of two alternating layers of semiconductor materials A and B, having refractive indexes of Na and Nb, respectively, with an effective index No of the optical mode in the low loss waveguide between Na and Nb, wherein No is within a 5% error margin of identical to a refractive index of the gain section and wherein the gain section is butt-jointed with the low loss waveguide, and wherein the size and shape of the optical mode(s) in the low loss waveguide and gain section are within a 10% error margin of equal. Desirably, at least one of the semiconductor materials A and B has a sufficiently large band gap that the passive waveguide structure blocks current under a voltage bias of 15 V.

公开(公告)号：US09231368B2

公开(公告)日：2016-01-05

申请号：US14628394

申请日：2015-02-23

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/00 ,  H01S5/026 ,  H01S5/34 ,  H01S5/02 ,  H01S5/20

CPC classification number: H01S5/026 ,  H01S5/0208 ,  H01S5/06256 ,  H01S5/2031 ,  H01S5/2206 ,  H01S5/3401 ,  H01S5/3402 ,  H01S2301/185

Abstract: Disclosed is a semiconductor optical emitter having an optical mode and a gain section, the emitter comprising a low loss waveguide structure made of two alternating layers of semiconductor materials A and B, having refractive indexes of Na and Nb, respectively, with an effective index No of the optical mode in the low loss waveguide between Na and Nb, wherein No is within a 5% error margin of identical to a refractive index of the gain section and wherein the gain section is butt-jointed with the low loss waveguide, and wherein the size and shape of the optical mode(s) in the low loss waveguide and gain section are within a 10% error margin of equal. Desirably, at least one of the semiconductor materials A and B has a sufficiently large band gap that the passive waveguide structure blocks current under a voltage bias of 15 V.

Abstract translation: 公开了一种具有光学模式和增益部分的半导体光发射器，发射极包括分别具有折射率为Na和Nb的两个交替层的半导体材料A和B的低损耗波导结构，其有效指数为 在Na和Nb之间的低损耗波导中的光学模式，其中No在与增益部分的折射率相同的5％误差范围内，并且其中增益部分与低损耗波导对接，并且其中 低损耗波导和增益部分中的光学模式的尺寸和形状在相等的10％误差范围内。 理想地，半导体材料A和B中的至少一个具有足够大的带隙，无源波导结构在15V的电压偏压下阻挡电流。

公开(公告)号：US20150270685A1

公开(公告)日：2015-09-24

申请号：US14725692

申请日：2015-05-29

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Catherine Genevieve Caneau ,  Lawrence Charles Hughes, JR. ,  Feng Xie ,  Chung-En Zah

IPC: H01S5/34 ,  H01S3/1055 ,  H01S5/00 ,  H01S5/028 ,  H01S5/40 ,  H01S5/06 ,  H01S5/12 ,  H01S5/0625

CPC classification number: H01S5/0687 ,  B82Y20/00 ,  H01S3/1055 ,  H01S5/0014 ,  H01S5/028 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/1096 ,  H01S5/1218 ,  H01S5/1228 ,  H01S5/125 ,  H01S5/3401 ,  H01S5/3402 ,  H01S5/4043 ,  H01S5/4087

Abstract: A monolithic tunable mid-infrared laser has a wavelength range within the range of 3-14 μm and comprises a heterogeneous quantum cascade active region together with at least a first integrated grating. The heterogeneous quantum cascade active region comprises at least one stack, the stack comprising two, desirably at least three differing stages. Methods of operating and calibrating the laser are also disclosed.

Abstract translation: 单片可调谐中红外激光器的波长范围在3-14μm的范围内，并且包括非均质量子级联有源区以及至少第一集成光栅。 非均质量子级联有源区包括至少一个堆叠，堆叠包括两个，期望地至少三个不同的阶段。 还公开了操作和校准激光器的方法。