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ICOP & ICPET 2015, 21 - : 905-908 Back to browse issues page
Spectrum Width Measurement of narrow linewidth lasers based on self Homodyne method using phase modulator
Narges Shahriari * 1, Asghar Gholami 1, Mohammad Javad Hekmat 1, Nastaran Pourshab 1, Mohammad Kanani 1
1- Isfahan University of Technology
Abstract:   (1927 Views)
In this paper, a modified Self Homodyne using phase modulator and short delay fiber length in order to measure the spectral width of a laser diode is presented. Due to short delay fiber, 1/f low frequency noise has been filtered from spectrum. So possibility of measuring the broadening of the spectrum due to white noise (the width of the Lorentzian spectrum) is provided. By use of this method, the linewidth of a 1550 nm laser diode with 83 kHz spectrum width has been measured. The result data of linewidth measurement using RF spectrum Analyzer (directly) and software are compared.
Keywords: Narrow linewidth Laser, Lorentzian, Phase modulator, Self-Homodyne
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Type of Study: Research | Subject: Special
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Shahriari N, Gholami A, Hekmat M J, Pourshab N, Kanani M. Spectrum Width Measurement of narrow linewidth lasers based on self Homodyne method using phase modulator. ICOP & ICPET. 2015; 21 :905-908
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Volume 21 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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