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A novel fiber Bragg grating (FBG) decoder is proposed for simultaneous time domain coherent optical code recognition and chromatic dispersion compensation. We derive the target frequency response of such a device and use the discrete layer peeling method to synthesize it. This dispersion compensation FBG decoder guarantees the system performance and simplifies the network structure. We also discuss...
Full-duplex, asynchronous, 10Gbps DPSK-OCDMA system on same wavelength using hybrid multi-port and SSFBG en/decoder is experimentally demonstrated. Error-free (BER<10-9) transmissions for all channels of both up- (4-user) and down- (8-user) link are obtained.
Secure 2.5 Gbit/s, 16-ary optical code division multiplexing (OCDM)-based block-ciphering with on-line XOR using a single multi-port optical en/decoder and its 50 km-long fiber transmission with true clock recovery is experimentally demonstrated for the first time.
Secure 16 ary OCDMA is experimentally demonstrated by encoding four serial bits at 2.49 Gbps into 16 optical codes via serial-to-parallel conversion and decoding by a multiport optical encoder/decoder.
Asynchronous OCDMA systems are demonstrated using 511 chip, 640 Gchip/s and 31 chip, 40 Gchip/s with different types of fiber Bragg grating encoders/decoders. Error-free transmission has been achieved with up to five OCDMA users.
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