Physics & Astronomy: Faculty Publications

Generation and Optical Parametric Amplification of Picosecond Supercontinuum

Document Type

Article

Publication Date

2010

Publication Title

Applied Optics

DOI

10.1364/AO.49.006645

Abstract

We have demonstrated the output characteristics of optical parametric amplification (OPA) seeded by a supercontinuum (SC) generated in deionized water excited by 1064nm. The SC spectrum (from 426 to 943nm) overlaps well with the tuning range of a 355nm pumped OPA for both the signal and idler. The tunable range covers from 430 to 2035nm, with a maximum overall energy conversion efficiency of 32% in the OPA stage. A FWHM bandwidth of 54nmnear the degeneracy point from 658 to 760nm can be generated by using a collinear OPA. Chirping of the SC pulses is also investigated with the OPA technique. The time delay between the 430nm component and the 567nm component of the generated SC due to chirp is measured to be −10.72ps, increasing almost linearly with the wavelength.

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