Share Email Print
cover

Proceedings Paper

Calculation of bit error ratio for optically pre-amplified DPSK receivers using optical Mach-Zehnder interferometer demodulation and balanced detection
Author(s): Xiupu Zhang; Zhenqian Qu; Lei Wang
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This paper presents an analysis of how to calculate bit error ratio (BER) with physical explanation for optically pre-amplified DPSK receivers using optical Mach-Zehnder interferometer (MZI) demodulation and balanced detection. It is shown that BER calculation method for this kind of receivers is different from the conventional calculation method used widely for IM/DD receivers. An analytical relationship in receiver sensitivity between DPSK receivers using MZI demodulation with balanced detection and IM/DD receivers (or DPSK receivers using MZI demodulation and single-port detection) is given based on the Gaussian noise approximation. Our calculation method correctly predicts the 3-dB improvement of receiver sensitivity by using balanced detection over single-port detection or IM/DD receivers. This predicted 3-dB improvement by using balanced detection converges with the interpretation of the 3-dB improvement by signal constellation. Furthermore, quantum-limited DPSK receivers with MZI demodulation are also analyzed in Appendix B.

Paper Details

Date Published: 8 September 2006
PDF: 11 pages
Proc. SPIE 6343, Photonics North 2006, 63430O (8 September 2006); doi: 10.1117/12.707686
Show Author Affiliations
Xiupu Zhang, Concordia Univ. (Canada)
Zhenqian Qu, Concordia Univ. (Canada)
Lei Wang, Concordia Univ. (Canada)


Published in SPIE Proceedings Vol. 6343:
Photonics North 2006
Pierre Mathieu, Editor(s)

© SPIE. Terms of Use
Back to Top