Materials, Photonic Devices, and Sensors

Simultaneous all-optical half-adder, half-subtracter, comparator, and decoder based on nonlinear effects harnessing in highly nonlinear fibers

[+] Author Affiliations
Karamdeep Singh, Maninder Lal Singh

Guru Nanak Dev University, Department of Electronics Technology, Amritsar, Punjab 143005, India

Gurmeet Kaur

Punjabi University, Department of Electronics and Communication Engineering, Patiala, Punjab 147002, India

Opt. Eng. 55(7), 077104 (Jul 25, 2016). doi:10.1117/1.OE.55.7.077104
History: Received April 2, 2016; Accepted July 1, 2016
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Abstract.  A multifunctional combinational logic module capable of performing several signal manipulation tasks all-optically, such as half-addition/subtraction, single-bit comparison, and 2-to-4 decoding simultaneously is proposed. Several logic functions (A+B¯, A.B, A¯.B, A.B¯, AB, and AB) between two input signals A and B are implemented by harnessing a number of nonlinear effects, such as cross-phase modulation (XPM), cross-gain modulation (XGM), and four-wave mixing (FWM) inside only two highly nonlinear fibers (HNLF) arranged in a parallel structure. The NOR gate (A+B¯) is realized by the means of XPM effect in the first HNLF, whereas, A.B, A.B¯, and A.B logics have relied on utilization of XGM and FWM processes, respectively, in parametric medium made up of the second HNLF of parallel arrangement. The remaining AB and AB logics required for successful implementation of the proposed simultaneous scheme are attained by temporally combining previously achieved (A.B and A.B) and (A.B and A+B) logics. Quality-factor 7.4 and extinction ratio 12.30  dB have been achieved at repetition rates of 100 Gbps for all logic functions (A+B, A.B, A¯.B, A.B¯, AB, and AB), suggesting successful simultaneous implementation.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Topics

Logic

Citation

Karamdeep Singh ; Gurmeet Kaur and Maninder Lal Singh
"Simultaneous all-optical half-adder, half-subtracter, comparator, and decoder based on nonlinear effects harnessing in highly nonlinear fibers", Opt. Eng. 55(7), 077104 (Jul 25, 2016). ; http://dx.doi.org/10.1117/1.OE.55.7.077104


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