Numerical simulation of semiconductor optical amplifier assisted sagnac gate and investigation of its switching characteristics

The switching characteristics of a semiconductor optical amplifier (SOA)-assisted Sagnac gate are analyzed in terms of their critical performance parameters for full duty cycle operation from 10 to 40 GHz. Within this frame, the influence of the control pulse width, as well as of the SOA gain recovery time on the switching energy and the contrast ratio, is examined through numerical simulation. The obtained results show that full switching operation at 40 GHz or higher is feasible either by deploying gain recovery reduction techniques in bulk SOAs, or other alternative technologically advanced optical devices, such as quantum-dot SOAs.

[1]  Jiu-Haw Lee,et al.  Numerical simulation on pulsed operation of an all-semiconductor optical amplifier nonlinear loop device , 2001 .

[2]  Ye Peida,et al.  Analysis of TOAD switching characteristics considering the gain and phase response of a semiconductor optical amplifier to control pulses , 2000 .

[3]  Robert J. Manning,et al.  Recovery of a π phase shift in 12.5 ps in a semiconductor laser amplifier , 1995 .

[4]  D. D'Alessandro,et al.  Noise analysis of conventional and gain-clamped semiconductor optical amplifiers , 2000, Journal of Lightwave Technology.

[5]  J. P. Sokoloff,et al.  A terahertz optical asymmetric demultiplexer (TOAD) , 1993, IEEE Photonics Technology Letters.

[6]  N. Olsson,et al.  Self-phase modulation and spectral broadening of optical pulses in semiconductor laser amplifiers , 1989 .

[7]  H. Avramopoulos,et al.  10 Gbit/s all-optical Boolean XOR with SOA fibre Sagnac gate , 1999 .

[8]  T. W. Berg,et al.  The Dynamics of Semiconductor Optical Amplifiers: Modeling and Applications , 2003 .

[9]  K. Dreyer,et al.  Acceleration of gain recovery in semiconductor optical amplifiers by optical injection near transparency wavelength , 2002, IEEE Photonics Technology Letters.

[10]  Hiroshi Ishikawa,et al.  Quantum-Dot Semiconductor Optical Amplifiers for High Bit-Rate Signal Processing over 40 Gbit/s , 2001 .

[11]  Shigeru Nakamura,et al.  Nonlinear phase shifts induced by semiconductor optical amplifiers with control pulses at repetition frequencies in the 40–160-GHz range for use in ultrahigh-speed all-optical signal processing , 2002 .

[12]  Paul R. Prucnal,et al.  NEW GENERATION OF DEVICES FOR ALL-OPTICAL COMMUNICATIONS , 2001 .

[13]  W. Pieper,et al.  SLALOM: semiconductor laser amplifier in a loop mirror , 1995 .

[14]  K. A. Shore,et al.  Analysis of operating characteristics of TOADs using gain saturation and nonlinear gain in SOAs , 1998 .

[15]  Xiaohan Sun,et al.  Analysis of the Switching Characteristics of TOAD , 2000 .