Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator

Integrated 16-ps Pulse Generator Based on a Reflective SOA-EAM for UWB Schemes

“…Also by adjusting the SOA bias and EAM bias and modulation voltage the output pulse shape can be a close approximation to a Gaussian signal. This operation holds several similarities to the proposal submitted in [9] but our solution holds significant upgrades in terms of integration capacities, suitable fitting for UWB applications and finally this work also demonstrate the reliability of the proposed characterization procedure. In this order of ideas, Fig.…”

Ultrafast optical technologies for large-capacity TDM/WDM photonic networks

“…The pulse width for 160 Gbit/s OTDM transmission, for example, can be estimated to be less than 2.5 ps assuming a maximum width of 40% Table 1, with less than 310 fs for 1.28 Tbit/s TDM. Various methods for high-repetition rate (more than 10 GHz) optical pulse generation have intensively been studied and developed to date utilizing mode-locked, [4,63,70,84] gain-switched [39] laser diodes, fiber ring lasers, [11,72] and electroabsorption modulator (EAM)-based pulse generation [69] producing optical pulses having a width of a few ps either directly or with some additional pulse compression. For bit rates over 640 Gbit/s, however, further nonlinear pulse compression should be needed to obtain 300-600 fs pulses with timing jitter of around 100 fs as shown in Table 1.…”

Ultrafast and Wideband All-Optical Processing Technologies Towards Flexible Photonic Networks

“…The pulse width required for 160 Gbit/s OTDM transmission, for example, should be approximately less than 2.5 ps. Various high-repetition rate (more than 10 GHz) short optical pulse sources have been intensively studied and developed to date including mode-locked, [4][5][6][7] gain-switched 8) laser diodes, fiber ring lasers, 9,10) and electroabsorption modulator (EAM)-based short pulse sources, 11) generating a few ps optical pulses either directly or with additional pulse compression. For higher bit rates of 640 Gbit/s or above, however, 300-600 fs pulses with timing jitter of around 100 fs must be generated.…”