Coiled hollow waveguides for gas sensing

David J. Haan; Daniel J. Gibson; Christopher D. Rabii; James A. Harrington

doi:10.1117/12.309465

5 June 1998 Coiled hollow waveguides for gas sensing

David J. Haan, Daniel J. Gibson, Christopher D. Rabii, James A. Harrington

Proceedings Volume 3262, Surgical-Assist Systems; (1998) https://doi.org/10.1117/12.309465
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States

Abstract

Coiled hollow waveguide gas absorption cells were designed and fabricated using polymer and glass tubing. These coiled waveguides were found to be acceptable for the detection of gases in the IR region of the spectrum. Through the in-depth investigation of straight and bent losses in hollow waveguides, an equation was developed to calculate the loss of the coiled system. By setting the straight loss to zero, it was found that additional loss on bending was approximately 1 dB per turn, independent of the bore size or bending radius.

Citation Download Citation

David J. Haan, Daniel J. Gibson, Christopher D. Rabii, and James A. Harrington "Coiled hollow waveguides for gas sensing", Proc. SPIE 3262, Surgical-Assist Systems, (5 June 1998); https://doi.org/10.1117/12.309465

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