Title :
Direct time-domain optical demultiplexing of 10-Gb/s NRZ signals using side-injection light-controlled bistable laser diode
Author :
Nonaka, Koji ; Kobayashi, Fumihiko ; Kishi, Kenji ; Tadokoro, Takashi ; Itoh, Yoshio ; Amano, Chikara ; Kurokawa, Takashi
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
Abstract :
We demonstrate high-speed direct optical demultiplexing of nonreturn-to-zero (NRZ) signals using a side-injection light-controlled bistable laser diode integrated into the optical gate and bit memory regions. The 2.5-Gb/s demultiplexed output signals are each selected once every 4 bits from 10-Gb/s NRZ optical input signals by the modulator-mode subwaveguide region. Then each signal is regenerated and its bit-width is converted in the bistable region. All functions are integrated on a single chip.
Keywords :
demultiplexing; integrated optoelectronics; optical bistability; optical communication equipment; photonic switching systems; semiconductor lasers; time division multiplexing; wavelength division multiplexing; 10 Gbit/s; 2.5 Gbit/s; MQW; NRZ signals; TDM/WDM switching nodes; bistable region; bit memory regions; bit-width; direct time-domain optical demultiplexing; light-controlled bistable laser diode; modulator-mode subwaveguide region; nonreturn-to-zero signals; optical gate; photonic digital switches; side-injection laser diode; single chip IC; Demultiplexing; Fiber nonlinear optics; High speed optical techniques; Integrated optics; Nonlinear optics; Optical bistability; Optical signal processing; Optical waveguides; Optical wavelength conversion; Time domain analysis;
Journal_Title :
Photonics Technology Letters, IEEE
