TY - JOUR
T1 - Design of SOA-based dual-loop optical buffer with a 3 × 3 collinear coupler
T2 - Guideline and optimizations
AU - Fu, Songnian
AU - Shum, P.
AU - Zhang, Liren
AU - Wu, Chongqing
AU - Liu, A. M.
N1 - Funding Information:
Manuscript received August 8, 2005; revised April 19, 2006. This work was supported in part by Project M47040039 of the Agency for Science, Technology and Research, Singapore, and also supported in part by the National Natural Science Foundation under Grant 60577020, China.
PY - 2006/7
Y1 - 2006/7
N2 - In this paper, theoretical and experimental analyses of the semiconductor optical amplifier (SOA)-based dual-loop all optical buffer (DLOB) with a 3 × 3 collinear coupler are presented. Two kinds of DLOB configurations and their choices of nonlinear elements are compared. After that, a novel SOA-based DLOB with Sagnac configuration is proposed. The proposed DLOB is simple, compact, and inherently stable. The required control signal power of this optical buffer (OB) is on the order of 1 mW, and no extra optical amplifier is needed to compensate the power loss. How the linewidth enhancement factor of SOA, the asymmetry power ratio, and the polarization characteristic of 3 × 3 collinear coupler, as well as SOA directional gain difference, may hamper the performance is examined systematically. Finally, the loading and reading operations with DLOB for packet data at the bit rate of 150 Mb/s and 2.5 Gb/s are demonstrated.
AB - In this paper, theoretical and experimental analyses of the semiconductor optical amplifier (SOA)-based dual-loop all optical buffer (DLOB) with a 3 × 3 collinear coupler are presented. Two kinds of DLOB configurations and their choices of nonlinear elements are compared. After that, a novel SOA-based DLOB with Sagnac configuration is proposed. The proposed DLOB is simple, compact, and inherently stable. The required control signal power of this optical buffer (OB) is on the order of 1 mW, and no extra optical amplifier is needed to compensate the power loss. How the linewidth enhancement factor of SOA, the asymmetry power ratio, and the polarization characteristic of 3 × 3 collinear coupler, as well as SOA directional gain difference, may hamper the performance is examined systematically. Finally, the loading and reading operations with DLOB for packet data at the bit rate of 150 Mb/s and 2.5 Gb/s are demonstrated.
KW - All optical buffer (OB)
KW - All optical packet switching (OPS)
KW - Collinear 3 × 3 fiber coupler
KW - Interferometric switch
KW - Linewidth enhancement factor
KW - Polarization
KW - Semiconductor optical amplifier (SOA)
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U2 - 10.1109/JLT.2006.876092
DO - 10.1109/JLT.2006.876092
M3 - Article
AN - SCOPUS:33746873250
SN - 0733-8724
VL - 24
SP - 2768
EP - 2778
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 7
ER -