公开(公告)号：US20210281048A1

公开(公告)日：2021-09-09

申请号：US17195794

申请日：2021-03-09

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Peter S.J. HEIM ,  John HRYNIEWICZ ,  Jacob MERTZ ,  Jianfei WANG

IPC: H01S5/14 ,  H01S5/026 ,  H01S5/0683 ,  G01B9/02

Abstract: A tunable laser assembly housed in a single enclosure and a method of control is described wherein the tunable laser, pump and semiconductor optical amplifier do not share a common optical axis but are all aligned to optical waveguides on an intervening planar lightwave circuit (PLC). Wavelength monitoring circuitry is included on the PLC to enable monitoring and control of the tunable laser center wavelength and optical bandwidth. The design of the PLC does not introduce perturbations into the swept-source laser output spectrum that would cause artifacts in imaging applications such as optical coherence tomography (OCT).

公开(公告)号：US20210242662A1

公开(公告)日：2021-08-05

申请号：US17162104

申请日：2021-01-29

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Peter S.J. HEIM ,  Alan DONALDSON ,  Jacob MERTZ ,  Robert ROCHE

IPC: H01S5/0687 ,  H01S5/00 ,  H01S5/02326 ,  H01S5/024 ,  H01S5/04 ,  H01S5/02216

Abstract: A tunable laser assembly housed in a single enclosure and a method of control is described that provides high-speed monitoring and control of the spectral properties of widely tunable lasers, such as MEMS-tunable VCSELs, with an optical configuration that does not introduce perturbations into the swept-source laser output spectrum that would cause artifacts in imaging applications such as optical coherence tomography (OCT).

公开(公告)号：US20210281046A1

公开(公告)日：2021-09-09

申请号：US17195780

申请日：2021-03-09

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Peter S.J. HEIM ,  John HRYNIEWICZ ,  Jacob MERTZ ,  Jianfei WANG

IPC: H01S5/0683 ,  H01S5/183 ,  H01S5/02253 ,  H01S5/02251 ,  H01S5/024 ,  H01S5/00

Abstract: A tunable laser assembly housed in a single enclosure and a method of control is described wherein the tunable laser, pump and semiconductor optical amplifier do not share a common optical axis but are all aligned to optical waveguides on an intervening planar lightwave circuit (PLC). Wavelength monitoring circuitry is included on the PLC to enable monitoring and control of the tunable laser center wavelength and optical bandwidth. The design of the PLC does not introduce perturbations into the swept-source laser output spectrum that would cause artifacts in imaging applications such as optical coherence tomography (OCT).

公开(公告)号：US20210116651A1

公开(公告)日：2021-04-22

申请号：US17077034

申请日：2020-10-22

Applicant: Thorlabs Quantum Electronics, Inc.

Inventor： Jianfei WANG ,  Jacob MERTZ ,  Peter HEIM

IPC: G02B6/42 ,  H04B10/67 ,  H04J14/02 ,  G01J3/02 ,  G01J3/28

Abstract: Disclosed are the method and system to derive the wavelength/frequency information covering wide wavelength or frequency range. Its practical applications include both fixed wavelength optical signal and wide bandwidth tunable or non-tunable optical signal, where the wavelength/frequency information is necessary for optical signal calibration, control, and monitoring, optical communications, and data processing. The approach has a “self-compensation” feature which is preferred to improve the accuracy of the extracted wavelength or frequency information even though there are components in the system having strong wavelength or frequency dependence in the wide wavelength or frequency range. The method is generic which can be realized in free space, fiber, or photonic integrated circuit (PIC).