Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Theoretical description of frequency modulation and wavelength modulation spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

We present a comprehensive theory for heterodyne absorption spectroscopy with phase-modulated light. The general equations presented allow for an arbitrary modulation index and an arbitrary modulation frequency. We use this description for three purposes: First, we review the special cases of so-called frequency modulation and wavelength modulation spectroscopy. Second, we present the additional case of large-index, high-frequency modulation. Third, we present an overview of how the absorption signal depends on the experimental parameters of modulation frequency and modulation index. This overview may be helpful to experimentalists in choosing these parameters, for it provides a systematic understanding of how moving around in parameter space changes certain features of the signal, while leaving other features invariant.

© 1994 Optical Society of America

Full Article  |  PDF Article
More Like This
Single-tone and two-tone AM–FM spectral calculations for tunable diode laser absorption spectroscopy

Nee-Yin Chou and Glen W. Sachse
Appl. Opt. 26(17) 3584-3587 (1987)

Wavelength modulation spectroscopy: combined frequency and intensity laser modulation

Stéphane Schilt, Luc Thévenaz, and Philippe Robert
Appl. Opt. 42(33) 6728-6738 (2003)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved