Superstructured FBG based optical encoder/decoder for highly-confidential 40 Gbps telecommunication network

Koji Omichi; Ryujiro Nomura; Ryosuke Matsumoto; Satoshi Shimizu; Yoshihiro Terada; Akira Sakamoto; Ryozo Yamauchi; Naoya Wada; Ken-ichi Kitayama

doi:10.1117/12.968477

7 November 2012 Superstructured FBG based optical encoder/decoder for highly-confidential 40 Gbps telecommunication network

Koji Omichi, Ryujiro Nomura, Ryosuke Matsumoto, Satoshi Shimizu, Yoshihiro Terada, Akira Sakamoto, Ryozo Yamauchi, Naoya Wada, Ken-ichi Kitayama

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842193 (2012) https://doi.org/10.1117/12.968477
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

40 Gbps optical encoding/decoding is demonstrated utilizing 8-level phase codes, 8 grating chips and 2.6 mm long superstructured fiber Bragg grating (SSFBG). Novel refractive index profile is applied to the SSFBG to obtain highlyrecognizable performance of encoding signal and highly-confidential decoding signal. Time-spreading optical codes are clearly observed from the encoding signals, and over 13 dB power contrast ratio is confirmed from the decoding signals.

Citation Download Citation

Koji Omichi, Ryujiro Nomura, Ryosuke Matsumoto, Satoshi Shimizu, Yoshihiro Terada, Akira Sakamoto, Ryozo Yamauchi, Naoya Wada, and Ken-ichi Kitayama "Superstructured FBG based optical encoder/decoder for highly-confidential 40 Gbps telecommunication network", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842193 (7 November 2012); https://doi.org/10.1117/12.968477

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