All-Optical Flip-Flop Based on Coupled-Mode DBR Laser Diode for Optically Clocked Operation

作者：Zaitsu Masaru^*; Higo Akio; Tanemura Takuo; Nakano Yoshiaki

来源：IEICE - Transactions on Electronics, 2012, E95C(2): 218-223.

DOI：10.1587/transele.E95.C.218

• all-optical flip-flop
• bistable laser diode
• cross-gain modulation
• saturable absorption
• photonic integrated circuit

A novel type of optically clocked all-optical flip-flop based on a coupled-mode distributed Braggw reflector laser diode is proposed. The device operates as a bistable laser, where the two lasing modes at different wavelength are switched all-optically by injecting a clock pulse together with a set/reset signal. We employ an analytical model based on the two-mode coupled rate equations to verify the basic operation of the device numerically. Optically clocked flip-flop operation is obtained with a set/reset power of 0.60 mW and clock power of 1.8 mW. The device features simple structure, small footprint, and synchronized all-optical flip-flop operation, which should be attractive in the future digital photonic integrated circuits.

• 出版日期2012-2