Apodized multiple quasi-phase-matched LiNbO3 device for low-cross-talk waveband conversion.
We developed an apodized multiple quasi-phase-matched (QPM) LiNbO(3) device to reduce the cross talk that occurs during waveband conversion. Since we found that the cross talk arises from ripples between multiple QPM peaks in the phase-matching curve, we reduced the amplitude of the ripples by employing the apodized structure. Using this device, we succeeded in demonstrating waveband conversion with low cross talk.
Tomita
Isao
I
NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan. itomita@aecl.ntt.co.jp
Umeki
Takeshi
T
Tadanaga
Osamu
O
Song
Hongbin
H
Asobe
Masaki
M