公开(公告)号：US20190131769A1

公开(公告)日：2019-05-02

申请号：US16160822

申请日：2018-10-15

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Miles James Weida ,  William Chapman ,  Bruce Coy

IPC: H01S5/0683 ,  H01S5/024

Abstract: An assembly (14) for analyzing a sample (15) includes a detector assembly (18); a tunable laser assembly (10); and (iii) a laser controller (10F). The detector assembly (18) has a linear response range (232) with an upper bound (232A) and a lower bound (232B). The tunable laser assembly (10) is tunable over a tunable range, and includes a gain medium (10B) that generates an illumination beam (12) that is directed at the detector assembly (18). The laser controller (10F) dynamically adjusts a laser drive to the gain medium (10B) so that the illumination beam (12) has a substantially constant optical power at the detector assembly (18) while the tunable laser assembly (10) is tuned over at least a portion of the tunable range.

公开(公告)号：US20200169064A1

公开(公告)日：2020-05-28

申请号：US16574894

申请日：2019-09-18

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Bruce Coy ,  Miles James Weida

IPC: H01S5/34 ,  H01S5/042 ,  H01S5/068 ,  H01S5/026

Abstract: A laser assembly (10) for generating a pulsed output beam (16) includes a quantum cascade device (12); and a laser driver (14A) that controls the voltage to the quantum cascade device (12) in a pulsed drive profile (950) to generate the pulsed output beam (16). The pulsed drive profile (950) includes a plurality of spaced on-time segments (952) in which the laser driver (14A) directs voltage to the quantum cascade device (12), and at least one off-time segment (954) in which the laser driver (14A) pulls down the voltage from the quantum cascade device (12). The off-time segment (954) occurs between two on-time segments (952).

公开(公告)号：US10483717B2

公开(公告)日：2019-11-19

申请号：US16160822

申请日：2018-10-15

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Miles James Weida ,  William Chapman ,  Bruce Coy

IPC: H01S5/00 ,  H01S5/0683 ,  H01S5/024 ,  H01S5/10 ,  H01S5/026 ,  H01S5/068 ,  H01S5/06 ,  G01N21/00 ,  H01S5/028 ,  H01S5/34 ,  H01S5/14

Abstract: An assembly (14) for analyzing a sample (15) includes a detector assembly (18); a tunable laser assembly (10); and (iii) a laser controller (10F). The detector assembly (18) has a linear response range (232) with an upper bound (232A) and a lower bound (232B). The tunable laser assembly (10) is tunable over a tunable range, and includes a gain medium (10B) that generates an illumination beam (12) that is directed at the detector assembly (18). The laser controller (10F) dynamically adjusts a laser drive to the gain medium (10B) so that the illumination beam (12) has a substantially constant optical power at the detector assembly (18) while the tunable laser assembly (10) is tuned over at least a portion of the tunable range.

公开(公告)号：US20210405001A1

公开(公告)日：2021-12-30

申请号：US17473766

申请日：2021-09-13

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Miles James Weida ,  Bruce Coy ,  David F. Arnone ,  Jeremy Rowlette ,  Santosh Hodawadekar

IPC: G01N30/74 ,  G01N30/38 ,  G01N30/78 ,  G01N21/05

Abstract: An analyzer system (10) for analyzing a sample (12) includes a MIR analyzer (34) for spectrally analyzing the sample (12) while the sample (12) is flowing in the MIR analyzer (34). The MIR analyzer (34) includes (i) a MIR flow cell (35C) that receives the flowing sample (12), (ii) a MIR laser source (35A) that directs a MIR beam (35B) in a MIR wavelength range at the sample (12) in the MIR flow cell (35C), and (iii) a MIR detector (35D) that receives light from the sample (12) in the MIR flow cell (35C) and generates MIR data of the sample (12) for a portion of the MIR wavelength range.

公开(公告)号：US11189992B2

公开(公告)日：2021-11-30

申请号：US16574894

申请日：2019-09-18

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Bruce Coy ,  Miles James Weida

IPC: H01S5/34 ,  H01S5/042 ,  H01S5/068 ,  H01S5/026

Abstract: A laser assembly (10) for generating a pulsed output beam (16) includes a quantum cascade device (12); and a laser driver (14A) that controls the voltage to the quantum cascade device (12) in a pulsed drive profile (950) to generate the pulsed output beam (16). The pulsed drive profile (950) includes a plurality of spaced on-time segments (952) in which the laser driver (14A) directs voltage to the quantum cascade device (12), and at least one off-time segment (954) in which the laser driver (14A) pulls down the voltage from the quantum cascade device (12). The off-time segment (954) occurs between two on-time segments (952).

公开(公告)号：US11119079B2

公开(公告)日：2021-09-14

申请号：US16537198

申请日：2019-08-09

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Miles James Weida ,  Bruce Coy ,  David F. Arnone

IPC: G01N30/74 ,  G01N30/38

Abstract: A chromatography analyzer system (10) for analyzing a sample (12) includes a MIR analyzer (34) for spectrally analyzing a sample fraction (12A) while the sample fraction (12A) is flowing in the MIR analyzer (34). The MIR analyzer (34) includes (i) a MIR flow cell (35C) that receives the flowing sample fraction (12A), (ii) a MIR laser source (35A) that directs a MIR beam (35B) in a MIR wavelength range at the sample fraction (12A) in the MIR flow cell (35C), and (iii) a MIR detector (35D) that receives light from the sample fraction (12A) in the MIR flow cell (35C) and generates MIR data of the sample fraction (12A) for a portion of the MIR wavelength range.