Title :
Dispersion-shifted LiNbO3 waveguides for wide-band parametric amplifiers
Author :
Rabiei, Payam ; Günter, Peter
Author_Institution :
Nonlinear Opt. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
A method for improving parametric amplifier gain bandwidth is introduced and analyzed. It is shown that it is possible to make chromatic dispersion equal to zero in a large index contrast waveguide of LiNbO3 by adjusting the cladding refractive index. Hence, the phase matching for parametric amplification can be achieved over a very large wavelength range. A practical method for the fabrication of the proposed amplifier is introduced. The proposed amplifier can achieve an order of magnitude improvement in gain bandwidth, pumping power, and size.
Keywords :
claddings; lithium compounds; optical dispersion; optical parametric amplifiers; optical phase matching; optical waveguides; refractive index; LiNbO3; chromatic dispersion; cladding refractive index; dispersion-shifted LiNbO3 waveguides; phase matching; wide-band parametric amplifiers; Bandwidth; Broadband amplifiers; Fiber nonlinear optics; Optical amplifiers; Optical frequency conversion; Optical pumping; Optical refraction; Optical waveguides; Refractive index; Stimulated emission; Integrated optics; nonlinear optics; optical fiber dispersion; optical parametric amplifiers; optical planar waveguide;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836903
