The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate all-optical clock recovery by using amplified-feedback laser with coherent injection, which can recover 40 Gb/s optical clock from degraded signal even with low OSNR of 7 dB, or large CD of 408 ps/nm.
Radio over fibre (RoF) system and orthogonal frequency division multiplexing (OFDM) have attracted much interest for increasing the capacity and coverage area for future broadband wireless millimetre waves (mm-waves) at 60GHz [1, 2]. Fast OFDM (F-OFDM), another promising multicarrier scheme, reduces the subcarrier spacing to half of symbol rate per subcarrier [3]. When compared to the conventional...
We demonstrate the first experimental implementation of intensity-modulation and direct-detection 7.6Gb/s DBPSK-based DSB optical Fast-OFDM with a reduced subcarrier spacing equal to half of the symbol rate per subcarrier over 40km SMF.
We propose offset-QAM based CoWDM, and show that the proposed system outperforms no-guard-interval optical OFDM and Nyquist WDM and enables the use of offset 4-, 16-, and 64-QAM with the performance approaching the theoretical limits.
We propose symmetric extension based guard interval (GI) to enable CD compensation with one-tap equalizers after discrete-cosine transform in optical fast-OFDM, and experimentally demonstrate 20Gbit/s 4-ASK transmission over 124km field-installed SMF with varied GI length.
We propose full-field detection based multi-chip MLSE to improve the receiver sensitivity, CD tolerance, and flexibility of the AMZI delay of the offset-DQPSK format, while retaining the simplicity of its pre-coder and single-AMZI demodulator.
We propose a new metric to significantly simplify 4-state full-field maximum likelihood sequence estimation, demonstrate its use in a 372 km field-installed fiber transmission experiment without performance degradation, and investigate the influence of critical system parameters.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.