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 language | English |
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Pages (from-to) | 503 |
Journal | New Physics: Sae Mulli |
Volume | 62 |
Issue number | 5 |
DOIs | |
Publication status | Published - 31 May 2012 |
Keywords
- 1/f noise
- Linearly polarized diode laser
- Photocurrent