Abstract
ABSTRACT Phase mismatch by angular detuning of a nonlinear crystal allows continuous variation of the intensity of second-harmonic light generated in the crystal, while maintaining a controlled phase relationship between the first and secondharmonics. Interference of this second-harmonic light with second-harmonic light generated in another crystal furtheralong the beam path has been measured, and can be understood by taking beam walk-off into account. When thesecond crystal is replaced by an optical fiber prepared for second-harmonic generation, the observed interferenceallows one to determine the phase of the grating in the optical fiber. We find the phase to be 88 4°. This phase differs by 1800 from recently reported results. 2. INTRODUCTION AND THEORY Interferometry of second-harmonic (Sil) light generated by two frequency doublers in series driven by a commonpump beam has proven to be a useful probe of second-harmonic-generation (SHG) physics'6. The use of multiplecrystals7 or of round-trip propagation through a single crystal8 has also been investigated as a means to increasethe efficiency of SHG. This type of interferometry was first used by Margulis e al.' to study SHG in fibers. They
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
