1/f Noise Characteristics of a Photodiode Signal Under Illumination by a Linearly Polarized Diode Laser

Handoko Djati, Hyun kim Dong

Research output: Contribution to journalArticlepeer-review

Abstract

The photocurrent on a Si photodiode caused at reverse bias by a linearly polarized diode laser has been systematically investigated by varying the bias voltage, the laser power, and the lock-in modulation frequency. Interestingly, the noise characteristics of the measured photocurrent exhibit a 1/f noise behavior with a scaling exponent of 0.94 ± 0.08 for all bias voltages from -4 V to -15 V, implying the existence of universality class for the 1/f noise characteristics in a photodiode detection signal irrespective of the bias voltage.

Original languageEnglish
Pages (from-to)503
JournalNew Physics: Sae Mulli
Volume62
Issue number5
DOIs
Publication statusPublished - 31 May 2012

Keywords

  • 1/f noise
  • Linearly polarized diode laser
  • Photocurrent

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