Wavelength-tunable sub-picosecond optical switch over entire C-band using nonlinear optical loop mirror

LETTER

Ryoya Hirata, Toshihiko Hirooka, Masato Yoshida, Masataka Nakazawa

Author information

Keywords: optical switch, nonlinear optical loop mirror, optical time-division multiplexed transmission, highly nonlinear fiber

JOURNAL FREE ACCESS

2019 Volume 16 Issue 23 Pages 20190664

DOI https://doi.org/10.1587/elex.16.20190664

Browse “Advance online publication” version

Details

Abstract

We present a wavelength-tunable ultrafast optical switch using a nonlinear optical loop mirror (NOLM), which has a low walk-off characteristic between the signal pulse and the control pulse thanks to the use of a dispersion-flattened highly nonlinear fiber. A 400-fs switching speed and an extinction ratio of >32 dB were obtained from 1528 to 1565 nm. The NOLM was applied to the 320 to 40 Gbaud demultiplexing of DQPSK Nyquist pulse signals, and error-free operation was achieved over the entire C-band.

Corresponding author

Register with J-STAGE for free!