Xiaodan Pang

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In this paper we experimentally demonstrate a novel, high phase-noise tolerant, optical dual polarization (DP) quadrature phase-shift keying (QPSK) communication system based on pilot-tone-aided phase noise cancellation (PNC) algorithm. Vertical cavity surface emitting lasers (VCSELs) with approximate 300 MHz linewidth are used as transmitters and local(More)
We experimentally demonstrate an 100 Gbit/s hybrid optical fiber-wireless link by employing photonic heterodyning up-conversion of optical 12.5 Gbaud polarization multiplexed 16-QAM baseband signal with two free running lasers. Bit-error-rate performance below the FEC limit is successfully achieved for air transmission distances up to 120 cm.
A theoretical investigation of the equalization-enhanced phase noise (EEPN) and its mitigation is presented. We show with a frequency domain analysis that the EEPN results from the non-linear inter-mixing between the sidebands of the dispersed signal and the noise sidebands of the local oscillator. It is further shown and validated with system simulations(More)
We present a performance evaluation of a non-conventional approach to implement phase noise tolerant optical systems with multilevel modulation formats. The performance of normalized Viterbi-Viterbi carrier phase estimation (V-V CPE) is investigated in detail for circular m-level quadrature amplitude modulation (C-mQAM) signals. The intrinsic property of(More)
Aditya Kakkar 1,*, Jaime Rodrigo Navarro 2, Richard Schatz 1, Xiaodan Pang 2, Oskars Ozolins 2, Hadrien Louchet 3, Gunnar Jacobsen 2 and Sergei Popov 1 1 Optics and Photonics Division, Royal Institute of Technology (KTH), Stockholm 164 40, Sweden; rschatz@kth.se (R.S.); sergeip@kth.se (S.P.) 2 Acreo Swedish ICT AB, Stockholm 164 40, Sweden;(More)
Miguel Iglesias Olmedo 1,2,*, Xiaodan Pang 3, Richard Schatz 1, Oskars Ozolins 3, Hadrien Louchet 2, Darko Zibar 4, Gunnar Jacobsen 1,3, Idelfonso Tafur Monroy 4 and Sergei Popov 1 1 Optics Division, Royal Institute of Technology, Electrum 229, Kista SE-16440, Sweden; rschatz@kth.se (R.S.); Gunnar.Jacobsen@acreo.se (G.J.); sergeip@kth.se (S.P.) 2 VPI(More)
In this paper, we report on a gigabit capacity fiber-wireless system that enables smooth integration between high-speed wireless networks and dense wavelength-division-multiplexing (DWDM) access networks. By employing a centralized optical frequency comb, both the wireline and the wireless services for each DWDM user can be simultaneously supported.(More)
In this paper, we report on a detailed analysis and performance comparison work between 60 GHz radio-over-fiber systems based on a DFB laser and a C-band VCSEL. Coherent photonic up-conversion method is applied for the 60 GHz millimeter-wave signal generation. The generated signals are evaluated by means of phase noise and bit error rate for different(More)
We report on experimental demonstration of 2x2 MIMO-OFDM 5.6-GHz radio over fiber signaling over 20 km WDM-PON with directly modulated (DM) VCSELs for femtocells application. MIMO-OFDM algorithms effectively compensate for impairments in the wireless link. Error-free signal demodulation of 64 subcarrier 4-QAM signals modulated at 198.5 Mb/s net data rate is(More)