M. Khan, M. Shemis, A. Ragheb, H. Fathallah, S. Alshebeili, Mohammed Z. U. Khan
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64 Gb/s quantum-dash laser based indoor free space optical communication
We demonstrate a single channel free space optical dual polarization - quadrature phase shift keying (DP-QPSK) transmission using an injection-locked InAs/InP quantum dash (Qdash) laser by employing external modulation. A receiver sensitivity of −19 dBm at ∼1621 nm is observed over a 4 m indoor channel at 64 Gb/s transmission rate. This stems the potential of Qdash lasers as a source in optical wireless communication, which is being considered as an alternative optical access technology for future high speed communication networks.
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