سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Masoomeh Taherkhani – Nanoptronics Research Center, Electronics and Electrical Engineering Department, Iran University of Science and Technology, Tehran
Shahram Mohammadnejad –

چکیده:

Quantum state measurement is necessary in optical quantum computation. We present a polarizing beam splitter (PBS) based on planar lightwave circuit (PLC) which acts asquantum state discriminator in quantum computation. A directional coupler has been used for implementation of thisdevice. We use lithium niobate as a wafer material and Ti:LiNbO3 for waveguide. The length and spacing of this directional coupler have been designed such that eachpolarization is routed in specific output. The proposed device has one input and two outputs. If polarization of the input photon is horizontal, then this photon will appear in output 1, otherwise if the input photon has vertical polarization, it appears in output 2. Designed polarizing beam splitter has length of 22 mm and width of 60 micron.