Soliton absorption spectroscopy

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.033840· OSTI ID:21408520

Kalashnikov, V L; Sorokin, E ^[1]

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1. Institut fuer Photonik, TU Wien, Gusshausstr. 27/387, A-1040 Vienna (Austria)

We analyze optical soliton propagation in the presence of weak absorption lines with much narrower linewidths as compared to the soliton spectrum width by using a perturbation analysis technique based on an integral representation in the spectral domain. The stable soliton acquires a spectral modulation that follows the associated index of refraction of the absorber. The model can be applied to ordinary soliton propagation and to an absorber inside a passively mode-locked laser. In the latter case, a comparison with water vapor absorption in a femtosecond Cr:ZnSe laser yields a very good agreement with experiment. Compared to the conventional absorption measurements in a cell of the same length, the signal is increased by an order of magnitude. The obtained analytical expressions allow further improvement in the sensitivity and spectroscopic accuracy, which makes soliton absorption spectroscopy a promising measurement technique.

• OSTI ID: 21408520
• Journal Information: Physical Review. A, Vol. 81, Issue 3; Other Information: DOI: 10.1103/PhysRevA.81.033840; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ABSORPTION SPECTROSCOPY
ACCURACY
COMPARATIVE EVALUATIONS
DISTURBANCES
INTEGRALS
LASERS
LINE WIDTHS
MODULATION
PERTURBATION THEORY
REFRACTIVE INDEX
SENSITIVITY
SIGNALS
SOLITONS
SPECTRA
WATER VAPOR
ZINC SELENIDES
CHALCOGENIDES
EVALUATION
FLUIDS
GASES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASI PARTICLES
SELENIDES
SELENIUM COMPOUNDS
SORPTION
SPECTROSCOPY
VAPORS
ZINC COMPOUNDS