Kuo Bill P-P, Fini John M, Grüner-Nielsen Lars, Radic Stojan
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093, USA.
Opt Express. 2012 Aug 13;20(17):18611-9. doi: 10.1364/OE.20.018611.
Conventional highly-nonlinear fiber (HNLF) designs are optimized for high field-confinement but are also inherently susceptible to dispersion fluctuations. The design compromise prevents fiber-optical parametric mixers from possessing high power efficiency and extended operating bandwidth simultaneously. Using a new fiber waveguide design, we have fabricated and tested a new class of HNLF that possesses a significantly lower level of dispersion fluctuations while maintaining a high level of field-confinement comparable to that in conventional HNLFs. The fiber was used to demonstrate an all-fiber parametric oscillator operating in short-wavelength infrared (SWIR) band with a watt-level pump, for the first time.