公开(公告)号：US20240019327A1

公开(公告)日：2024-01-18

申请号：US18477236

申请日：2023-09-28

Applicant: Stable Laser Systems, Inc.

Inventor： Josue DAVILA-RODRIGUEZ ,  David LEE ,  Mark NOTCUTT ,  Michael GRISHAM ,  Nathaniel PHILLIPS

IPC: G01L11/02 ,  G02B27/10 ,  G01C19/72 ,  G01N21/45

CPC classification number: G01L11/02 ,  G02B27/10 ,  G01C19/727 ,  G01N21/45

Abstract: In an aspect, a pressure sensor for determining pressure in an environment comprises: a source for emitting a coherent reference light characterized by a reference light frequency; a first lock-in mechanism configured to send an electrical signal to the source based on a reference resonance frequency; a reference cavity; wherein the reference cavity is characterized by the reference resonance frequency; a modulator configured a reference light to generate at least a first sideband frequency such that an output of said modulator is a measurement light characterized by at least the first sideband frequency; a frequency synthesizer configured to drive the modulator; a second lock-in mechanism configured to send an electrical signal to the frequency synthesizer based on a measurement resonance frequency; and a measurement cavity configured to receive at least a portion of the measurement light; wherein the measurement cavity is characterized by the measurement resonance frequency; and wherein the pressure of the environment is determined based on the reference resonant frequency and the measurement resonance frequency.