Abstract

Asymmetric Y junctions allow the development of a new class of optical frequency mixers that utilize higher-order waveguide modes for signal processing. We measure high-contrast ($>30 \mathrm{dB}$) mode sorting in asymmetric Y junctions by use of a novel technique: efficient ${\mathrm{TM}}_{00}$, ${\mathrm{TM}}_{10}$, and ${\mathrm{TM}}_{20}$ mode mixing in a periodically poled lithium niobate waveguide. We also demonstrate an odd-to-even mode wavelength converter capable of spectral inversion without offset or bidirectional wavelength conversion.

© 2004 Optical Society of America

Optical-frequency balanced mixer

J. R. Kurz, K. R. Parameswaran, R. V. Roussev, and M. M. Fejer
Opt. Lett. 26(16) 1283-1285 (2001)

Odd waveguide mode quasi-phase matching with angled and staggered gratings

J. R. Kurz, X. P. Xie, and M. M. Fejer
Opt. Lett. 27(16) 1445-1447 (2002)

Quasi-group-velocity matching using integrated-optic structures

Jie Huang, J. R. Kurz, Carsten Langrock, A. M. Schober, and M. M. Fejer
Opt. Lett. 29(21) 2482-2484 (2004)

Two-spatial-mode parametric amplifier in lithium niobate waveguides with asymmetric Y junctions

Xiuping Xie and M. M. Fejer
Opt. Lett. 31(6) 799-801 (2006)

Periodically poled lithium niobate waveguide sum-frequency generator for efficient single-photon detection at communication wavelengths

Rostislav V. Roussev, Carsten Langrock, Jonathan R. Kurz, and M. M. Fejer
Opt. Lett. 29(13) 1518-1520 (2004)