High performance Digital Optical Switch


  • Ghanshyam Singh Malaviya National Institute of Technology Jaipur
  • S. Gupta
  • P. Jain
  • S. Bothra
  • V. Janyani
  • R.P. Yadav




In this work, we present a high performance Y-shaped digital optical switch (DOS) which complies with the DOS reported earlier using Titanium in-diffused or proton exchanged Lithium Niobate waveguiding structures. The optimization of switching characteristics is performed for switching voltage and device size. This structure has a total length of 5.5mm and a width of 20.6um. For the first time, the driving voltage as low as 1V has been achieved with acceptable crosstalk levels (in the range of -22dB to -28dB) for communication applications. Using a beam propagation method (BPM), we demonstrate that the switch is polarization independent and suitable for low attenuation optical window (1300nm and 1550nm) operation as well.  

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Author Biography

Ghanshyam Singh, Malaviya National Institute of Technology Jaipur

Ghanshyam Singh
Assistant Professor
Dept. of Electronics & Communication
Malaviya National Institute of Technology
J.L.N Road, Jaipur-302017




How to Cite

G. Singh, S. Gupta, P. Jain, S. Bothra, V. Janyani, and R. Yadav, “High performance Digital Optical Switch”, Photonics Lett. Pol., vol. 3, no. 1, pp. pp. 38–40, Mar. 2011.