Widely tunable 3.4 microm band difference frequency generation using apodized chi(2) grating.
We achieved apodization in a quasi-phase-matched wavelength converter. The new design yields a large bandwidth and a flat phase-matching response with a high conversion efficiency. Using the method, we demonstrate widely tunable 3.4 microm band difference frequency generation in a LiNbO3 ridge waveguide.
Umeki
T
T
NTT Photonics Laboratories, NTT Corporation, Kanagawa, Japan. umeki@aecl.ntt.co.jp
Asobe
M
M
Nishida
Y
Y
Tadanaga
O
O
Magari
K
K
Yanagawa
T
T
Suzuki
H
H