Author/Authors :
J.H.، Sinsky, نويسنده , , S.، Chandrasekhar, نويسنده , , J.، Leuthold, نويسنده , , Adamiecki، A نويسنده , , O.، Wohlgemuth, نويسنده , , A.، Gnauck, نويسنده , , Jr.، Burrus, C.A., نويسنده , , A.، Umbach, نويسنده ,
Abstract :
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.
