Unpreamplified heterodyne detection of 10Gb/s NRZ-OOK with high receiver sensitivity

D. Becker; C. Wree; D. Mohr; A. Joshi

doi:10.1117/12.688425

3 October 2006 Unpreamplified heterodyne detection of 10Gb/s NRZ-OOK with high receiver sensitivity

D. Becker, C. Wree, D. Mohr, A. Joshi

Proceedings Volume 6353, Optical Transmission, Switching, and Subsystems IV; 63532Z (2006) https://doi.org/10.1117/12.688425
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

Abstract

We report -31 dBm receiver sensitivity for heterodyne detection of 10 Gb/s OOK without using an optical pre-amplifier. These are the highest receiver sensitivities for unpreamplified heterodyne 10 Gb/s detection. We also show the development of a coherent heterodyne balanced fiber optic receiver. The receiver incorporates a DFB or a solid state laser local oscillator, balanced PIN photodiodes, RF post amplifier, automatic frequency control (AFC), phase locked loop (PLL), polarization control, and precision power supplies in a small instrument case. We will show shot noise limited detection of amplitude modulated signals, cancellation of laser RIN noise, performance improvement using balanced detection at 2.5 and 10 Gb/s, and IF linewidth reduction.

Citation Download Citation

D. Becker, C. Wree, D. Mohr, and A. Joshi "Unpreamplified heterodyne detection of 10Gb/s NRZ-OOK with high receiver sensitivity", Proc. SPIE 6353, Optical Transmission, Switching, and Subsystems IV, 63532Z (3 October 2006); https://doi.org/10.1117/12.688425

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