Integrated QPM sum-frequency generation interferometer device for ultrafast optical switching

An all-optical switching device consisting of a LiNbO/sub 3/ waveguide Mach-Zehnder interferometer with a quasi-phase-matched (QPM) sum-frequency generation (QPM-SFG) section, and a thermooptic phase shifter in the arms was designed and fabricated. Picosecond gate switching of signal wave by control pulses both in 1.5-/spl mu/m wavelength band is demonstrated in a device having a QPM-SFG section of 5-mm length.

[1]  David J. Hagan,et al.  χ(2) cascading phenomena and their applications to all-optical signal processing, mode-locking, pulse compression and solitons , 1996 .

[2]  Toshiaki Suhara,et al.  High-efficiency LiNbO/sub 3/ waveguide second-harmonic generation devices with ferroelectric-domain-inverted gratings fabricated by applying voltage , 1996 .

[3]  H. Nishihara,et al.  Waveguide quasi-phase-matched sum-frequency generation device for high-efficiency optical sampling , 1999, IEEE Photonics Technology Letters.

[4]  D. C. Hanna,et al.  Quasi-phase-matched blue light generation in bulk lithium niobate, electrically poled via periodic liquid electrodes , 1994 .

[5]  Waveguide quasi-phase-matched sum-frequency generation device for high-efficiency optical sampling , 1999 .

[6]  H. Miyazawa,et al.  All-optical switching based on cascading of second-order nonlinearities in a periodically poled titanium-diffused lithium niobate waveguide , 1999, IEEE Photonics Technology Letters.

[7]  Charles N. Ironside,et al.  An all-optical switch employing the cascaded second-order nonlinear effect , 1993 .

[8]  Gijsbertus J.M. Krijnen,et al.  All‐optical integrated Mach–Zehnder switching due to cascaded nonlinearities , 1996 .

[9]  M. Fujimura,et al.  Wavelength-conversion type picosecond optical switching using a waveguide QPM-SHG/DFG device , 2001 .

[10]  M. Fejer,et al.  Low-power all-optical gate based on sum frequency mixing in APE waveguides in PPLN , 2000, IEEE Photonics Technology Letters.