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

Singh, G., Gupta, S., Jain, P., Bothra, S., Janyani, V., & Yadav, R. (2011). High performance Digital Optical Switch. Photonics Letters of Poland, 3(1), pp. 38–40. https://doi.org/10.4302/photon. lett. pl.v3i1.191