RZ-DPSK transmission using a 42.7-Gb/s integrated balanced optical front end with record sensitivity

We have demonstrated a record sensitivity of -37.0 dBm (38 photons/bit) for a BER of 10/sup -9/ at 42.7-Gb/s using an integrated balanced optical front end. Results were obtained using optical preamplification of RZ-DPSK modulation and an external delay-interferometer. The OSNR requirement was measu...

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Bibliographic Details
Published in:Journal of lightwave technology 2004-01, Vol.22 (1), p.180-185
Main Authors: Sinsky, J.H., Adamiecki, A., Gnauck, A., Burrus, C.A., Leuthold, J., Wohlgemuth, O., Chandrasekhar, S., Umbach, A.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Bit error rate
Delay
Exact sciences and technology
Integrated optics
Optical modulation
Optical noise
Optical recording
Optical sensors
Polarization mode dispersion
Signal to noise ratio
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:We have demonstrated a record sensitivity of -37.0 dBm (38 photons/bit) for a BER of 10/sup -9/ at 42.7-Gb/s using an integrated balanced optical front end. Results were obtained using optical preamplification of RZ-DPSK modulation and an external delay-interferometer. The OSNR requirement was measured to be 16.9 dB in a 0.1-nm bandwidth. The impact of polarization-mode dispersion (PMD) and chromatic dispersion on the optical front end performance has been measured. Performance for enhanced forward error correction has been projected based on 10/sup -3/ BER performance.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2003.822212