Patent ID: 11885887
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 34:
35. An imaging subsystem,
wherein the imaging subsystem is a coherent subsystem,
wherein the imaging subsystem is based on frequency modulation (FM), and/or amplitude modulation (AM),
the imaging subsystem comprising:
(a) (i) one or more lasers, and (ii) one or more photodiodes (PDs), or one or more balanced photodiodes (BPDs); and
wherein at least one of the one or more lasers has a distinct wavelength, or a tunable wavelength,
wherein at least one of the one or more lasers has a laser linewidth less than 200 Hz,
wherein at least one of the one or more lasers is communicatively interfaced with a Lorentzian Least Squares Fitting Processor (LLSF Processor),
wherein the Lorentzian Least Squares Fitting Processor (LLSF Processor) comprises (i) an integrated electronic circuit (IC), and (ii) a first set of computer implementable instructions to calculate, or compute Lorentzian Least Squares Fit (LLSF),
wherein the first set of computer implementable instructions is stored in one or more non-transitory storage media,

(b) an optical phased array (OPA) for laser beam steering,
wherein the optical phased array (OPA) for laser beam steering is a two-dimensional (2-D) optical phased array (OPA), or a three-dimensional (3-D) optical phased array (OPA),
wherein the optical phased array (OPA) for laser beam steering comprises (i) a first layer of a first optical material, and (ii) a second layer of a second optical material,
wherein the first layer comprises a first array of first antennas consisting of a material selected from the group consisting of a phase transition material, a phase change material, and a second harmonic (SH) generation material, wherein a first spatial separation between the first antennas of the first array of the first antennas is uniformly spaced, or non-uniformly spaced,
wherein each antenna of the first array of the first antennas is passively controlled, or actively controlled by an electrical stimulus, or an optical stimulus,
wherein the each antenna of the first array of the first antennas has a dimension less than 1000 nanometers, and greater than 2 nanometers,
wherein the second layer comprises a second array of second antennas consisting of a material selected from the group consisting of the phase transition material, the phase change material, and the second harmonic (SH) generation material, wherein a second spatial separation between the second antennas of the second array of the second antennas is uniformly spaced, or non-uniformly spaced,
wherein each antenna of the second array of the second antennas is passively controlled, or actively controlled by the electrical stimulus, or the optical stimulus,
wherein the each antenna of the second array of the second antennas has a dimension less than 1000 nanometers, and greater than 2 nanometers,
wherein the first layer of the first optical material, and the second layer of the second optical material are electrically isolated by an electrically insulating layer.