Molecular dispersion spectroscopy in a CO2-filled all-fiber gas cells based on a hollow-core photonic crystal fiber

Piotr Jaworski

doi:10.1117/1.OE.58.2.026112

23 February 2019 Molecular dispersion spectroscopy in a CO₂-filled all-fiber gas cells based on a hollow-core photonic crystal fiber

Piotr Jaworski

Author Affiliations +

Optical Engineering, Vol. 58, Issue 2, 026112 (February 2019). https://doi.org/10.1117/1.OE.58.2.026112

Abstract

CO₂ sensing using self-fabricated all-fiber gas cells based on a hollow-core photonic crystal fiber and chirped laser dispersion spectroscopy (CLaDS) is presented. I show that CLaDS enables significant reduction of optical fringes arising from the mutlimode nature of the air-core photonic bandgap (PBG) fiber, hence improving the gas sensing system’s stability and performance. By carefully selecting modulation frequency, it is possible to match the period of interference signal (resulting from coupling between fiber’s guided modes) and, therefore, suppress its contribution to the retrieved signal. CLaDS enables successful use of hollow-core PBG fibers in gas sensing applications.

Citation Download Citation

Piotr Jaworski "Molecular dispersion spectroscopy in a CO₂-filled all-fiber gas cells based on a hollow-core photonic crystal fiber," Optical Engineering 58(2), 026112 (23 February 2019). https://doi.org/10.1117/1.OE.58.2.026112

Received: 2 January 2019; Accepted: 12 February 2019; Published: 23 February 2019

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available