• Carpenter, Steven
• Gold, D. C.
• Bhadkamkar, A. S.
• Dwyer, M.
• Weide, D. Van Der
• Goldsmith, Randall
• Yavuz, D. D.
• Hogan, Levi

Abstract

<jats:p>We experimentally demonstrate Raman lasing in a mm-sized CaF<jats:sub>2</jats:sub> disk, with an optical power output of the first Stokes sideband exceeding 100 mW in a near-continuous wave (CW) operation. The pump beam at a wavelength of 1.06 <jats:inline-formula><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mi>μ<!-- μ --></mml:mi></mml:mrow></mml:math></jats:inline-formula>m is coupled to the whispering gallery modes of the disk with the use of a tapered glass fiber. With the pump beam coupled to one of the resonator modes, we observe the generation of the first and the second Stokes sidebands at wavelengths of 1.1 <jats:inline-formula><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mi>μ<!-- μ --></mml:mi></mml:mrow></mml:math></jats:inline-formula>m and 1.14 <jats:inline-formula><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mi>μ<!-- μ --></mml:mi></mml:mrow></mml:math></jats:inline-formula>m, respectively. The conversion efficiency from the pump laser beam to the generated sidebands is ∼10%. These results open up the prospect of using such mm-sized disks as compact, highly efficient ultrafast modulators with modulation frequencies as high as 10 THz.</jats:p>

Topics

• impedance spectroscopy
• glass
• glass
• optical rotatory dispersion