Applied Physics B

, 82:479

Ultra-high precision mid-IR spectrometer I: Design and analysis of an optical fiber pumped difference-frequency generation source


DOI: 10.1007/s00340-005-2072-2

Cite this article as:
Richter, D. & Weibring, P. Appl. Phys. B (2006) 82: 479. doi:10.1007/s00340-005-2072-2


We report the results of a systematic characterization of various optical fiber pumping schemes for difference-frequency sources employing periodically poled LiNbO3. Theoretical and practical considerations to achieve performance improvements for ultra-sensitive trace gas detection applications are discussed. As a result, we report a new mechanically robust and miniaturized mixing module employing a hybrid fiber with a plano-convex lens, reducing the size of previous DFG configurations by 65%. We also show pump, signal, and idler beam cross-sections before and after passing through a 100-m effective pathlength astigmatic Herriott multi-pass cell.

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Earth Observing LaboratoryNational Center for Atmospheric ResearchBoulderUSA