DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Spectroscopy using active diode laser stabilization by optical feedback

Abstract

A cavity ring down spectroscopy (CRDS) system uses a free-running continuous wave (c.w.) diode laser stabilized by frequency-shifted optical feedback in the presence of strong reflections from a high-finesse Fabry-Perot resonator. The frequency-shifted feedback stabilization eliminates the need for tightly controlling the relative positions of the laser and resonator. Non-frequency-shifted feedback is used for linewidth broadening. An acousto-optic modulator placed between the diode laser output and the resonator input frequency-shifts light reflected by the resonator input, causing the laser to cycle in phase with a period equal to the inverse of the frequency-shift. The laser diode linewidth can be stabilized from several MHz for high resolution spectroscopy of species at low pressures, to several hundred MHz for lower resolution spectroscopy of species at atmospheric pressures.

Inventors:
; ;
Issue Date:
Research Org.:
Stanford Univ., CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531823
Patent Number(s):
5903358
Application Number:
08/949,241
Assignee:
The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
FG03-92ER14304; N00014-92-J-1903
Resource Type:
Patent
Resource Relation:
Patent File Date: 1997-10-10
Country of Publication:
United States
Language:
English

Citation Formats

Zare, Richard N., Martin, Juergen, and Paldus, Barbara A. Spectroscopy using active diode laser stabilization by optical feedback. United States: N. p., 1999. Web.
Zare, Richard N., Martin, Juergen, & Paldus, Barbara A. Spectroscopy using active diode laser stabilization by optical feedback. United States.
Zare, Richard N., Martin, Juergen, and Paldus, Barbara A. Tue . "Spectroscopy using active diode laser stabilization by optical feedback". United States. https://www.osti.gov/servlets/purl/1531823.
@article{osti_1531823,
title = {Spectroscopy using active diode laser stabilization by optical feedback},
author = {Zare, Richard N. and Martin, Juergen and Paldus, Barbara A.},
abstractNote = {A cavity ring down spectroscopy (CRDS) system uses a free-running continuous wave (c.w.) diode laser stabilized by frequency-shifted optical feedback in the presence of strong reflections from a high-finesse Fabry-Perot resonator. The frequency-shifted feedback stabilization eliminates the need for tightly controlling the relative positions of the laser and resonator. Non-frequency-shifted feedback is used for linewidth broadening. An acousto-optic modulator placed between the diode laser output and the resonator input frequency-shifts light reflected by the resonator input, causing the laser to cycle in phase with a period equal to the inverse of the frequency-shift. The laser diode linewidth can be stabilized from several MHz for high resolution spectroscopy of species at low pressures, to several hundred MHz for lower resolution spectroscopy of species at atmospheric pressures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {5}
}

Works referenced in this record:

Visible-wavelength diode laser with weak frequency-shifted optical feedback
journal, November 1994


CW cavity ring down spectroscopy
journal, January 1997


Diode laser cavity ring down spectroscopy
journal, May 1997


Electronic suppression of optical feedback instabilities in a solid-state laser
patent, May 1998


    Works referencing / citing this record:

    Frequency sequencing using CRDS
    patent, April 2002


    Optical modulator and control method therefor
    patent, October 2008


    Methods for precision optical frequency synthesis and molecular detection
    patent, August 2015


    Cavity ring-down spectroscopic system and method
    patent, March 2017


    System and method for tracking eyeball motion
    patent, May 2012


    Chirped coherent laser radar with multiple simultaneous measurements
    patent, November 2013


    System and method for tracking eyeball motion
    patent, November 2013


    Natural gas leak mapper
    patent, May 2008


    Frequency-feedback cavity enhanced spectrometer
    patent, August 2015


    Tunable light source for use in photoacoustic spectrometers
    patent, December 2005


    Laser device coupled to a cavity by optical feedback for detecting gas traces
    patent, November 2008


    System and method for remotely monitoring physiological functions
    patent, January 2018


    Mode-coupled laser
    patent, November 2004


    Agile spectral interferometric microscopy
    patent, February 2007


    Analog detection for cavity lifetime spectroscopy
    patent, March 2003


    Cavity enhanced fiber optic and waveguide chemical sensor
    patent, February 2004


    Multi-channel optical cell
    patent, October 2012


    Multilayer ceramic NOx gas sensor device
    patent, November 2009


    Method and device for measuring the absorption or light diffusion of biological elements
    patent, June 2008