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Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.67 [2008] >
JSIR Vol.67(03) [March 2008] >
| Title: | An improved optical costas loop PSK receiver: Simulation analysis |
| Authors: | Helaluddin, G M |
| Keywords: | BPD (balanced phase detector)
DFB (distributed feed back
OPM (optical phase modulator)
Optical costas loop
PSK (phase shift keying)
VCO (voltage controlled oscillator) |
| Issue Date: | Mar-2008 |
| Publisher: | CSIR |
| Abstract: | Simulation analysis of proposed optical costas loop has been investigated considering strong nonlinearity of loop
and finite loop delay through phase subtraction. Prime attention has been given on inherent laser phase noise due to random
spontaneous emission and shot noise related to photo detection process. The stringent laser linewidth requirements for promising
receiver has been relaxed up to 8.0 MHz for each laser considering 3.3° RMS phase error and power sensitivity improvement
is realized introducing an extra optical phase modulator at VCO laser output. |
| Page(s): | 203-208 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.67(03) [March 2008]
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