Continuous-Wave Molecular Modulation Using a High-Finesse Cavity

Applied Sciences

David C. Gold²  Joshua J. Weber²  Deniz D. Yavuz¹ 

[1] Department of Physics, University of Wisconsin at Madison, 1150 University Avenue, Madison, WI 53706, USA;

关键词: stimulated Raman scattering;    Raman lasing;    optical modulators;    ultrafast physics;    subfemtosecond pulses;   

DOI  :  10.3390/app4040498

来源: mdpi

【 摘 要 】

We demonstrate an optical modulator at a frequency of 90 THz that has the capability to modulate any laser beam in the optical region of the spectrum. The modulator is constructed by placing deuterium molecules inside a high-finesse cavity and driving a vibrational transition with two continuous-wave laser beams. The two beams, the pump and the Stokes, are resonant with the cavity. The high intra-cavity intensities that build up drive the molecules to a coherent state. This molecular coherence can then be used to modulate an independent laser beam, to produce frequency up-shifted and down-shifted sidebands. The beam to be modulated is not resonant with the cavity and thus the sidebands are produced in a single pass.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.