Jaime Javier Borges Marquez, David Rodríguez Fernández, Marcos Roberto Cardoso, Manuel Alejandro Lefrán Torres, Luis Gustavo Marcassa
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Abstract
We have developed a broadband light source based on an extended-cavity tapered amplifier, whose frequency is stabilized using a volume Bragg grating (VBG). The setup delivers up to 200 \(\text {mW}\) of optical power over the 14640–14670 \(\text {cm}^{-1}\) range, with a spectral bandwidth of about 2 \(\text {cm}^{-1}\). We have characterized the source as a function of both the VBG angle and the tapered amplifier drive current, using a home-built virtually imaged phased array (VIPA) spectrometer. To demonstrate its capabilities, we carried out iodine absorption spectroscopy in the 14664.5–14666.5 \(\text {cm}^{-1}\) interval. This broadband source is promising for a variety of applications, in particular for cooling the translational, vibrational, and rotational degrees of freedom of diatomic molecules.
期刊介绍：
Features publication of experimental and theoretical investigations in applied physics
Offers invited reviews in addition to regular papers
Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more
94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again
Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field.
In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.
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