Pulse generation and compression using an asymmetrical porous silicon-based Mach–Zehnder interferometer configuration

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• 作者：SHU-WEN GUO ; JIAN-WEI WU
• 关键词：Silicon nanophotonics ; porous silicon waveguide ; pulse generation and compression.
• 刊名：Pramana
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：87
• 期：6
• 全文大小：350 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Astronomy
  Astrophysics
  
• 出版者：Springer India
• ISSN：0973-7111
• 卷排序：87

文摘

We propose an asymmetrical Mach–Zehnder interferometer (MZI) for efficient pulse generation and compression using porous silicon (PS) waveguide, fibre delay line and couplers. We show a pulse compression of about 0.4 ns at the output port with third-order super-Gaussian input pulse in ∼2 ns time duration and ∼40.3 W peak power level. Also, we show the possibility of obtaining compressed single- or double-pulse with judicious choice of various parameters like input peak power, delay time and input pulse width.