Quantum-dash (QDash) mode-locked (ML) Fabry-Pérot laser diodes have attracted significant interest in optical time-division multiplexing and wavelength-division multiplexing systems due to their variety of applications such as sub-picosecond pulse generation, frequency multiplication, multi-channel transmission, clock recovery, and clock generation [1-5]. In particular, clock generation has been demonstrated by using a programmable notch filter at the output of a 40 GHz QDash-ML laser . Selection from two to three longitudinal modes at a given wavelength separation allows for the generation of sinusoidal clock signals at different repetition rates. In this work, an alternative approach based on optical time-domain multiplexing is experimentally investigated. Optical pulse-streams at 80, 160 and 320 GHz featuring optical signal-to-noise-ratios of 12, 9 and 6 dB, respectively, are obtained. Time-domain multiplexed pulses exhibit a full-width at half maximum (FWHM) of 1.8 ps irrespective of the pulse repetition rate.
|Title of host publication||2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011|
|Number of pages||1|
|Publication status||Published - 6 Sep 2011|
|Event||2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany|
Duration: 22 May 2011 → 26 May 2011
|Conference||2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011|
|Period||22/05/11 → 26/05/11|