Optimization of Spectrum-Sliced ASE Source for Injection-Locking a Fabry–PÉrot Laser Diode

Light Sources for WDM Passive Optical Networks

“…This IN is believed to be transferred to the injection-locked mode of the FPLD, leading to degraded signal-to-noise ratio and receiver sensitivity of the directly modulated FPLD output. Different spectrum widths of ASE noise exhibit different levels of IN and require different injection powers to achieve the same side-mode suppression ratio (SMSR) for a given FPLD, therefore the AWG bandwidth also plays important role in improving the FPLD output performance [7], our work further demonstrated that the properties of the FPLD itself, like front facet reflectivity also affect the injection locking performance [8]. Due to the relatively broad bandwidth of the spectrum spliced ASE noise, the required power for injection locking an FPLD is relatively high, particularly when the data rate is up to Gigabit per second, leading stronger backward reflection of seeding light inside feeder fiber.…”

Characterization of Fabry–Perot laser diodes injection locked by spectrum sliced ASE noise in WDM-PON

“…There have some investigations on the properties of injection-locked FPLDs. Front-facet reflectivity of FPLDs was reduced [8] ASE noise for injection locking FPLDs has been investigated and the optimal filter bandwidth has been found [9]. The dynamic property of an FPLD transmitter injection locked by a continuouswave (CW) light have also been investigated [10].…”

A space-diversity optical labeling scheme with optical labels derived from ASE noise

“…Continuous wavelength (CW) light from a wavelength tunable laser (TL) is NRZ-OOK modulated with 10.7 Gbit/s data. In [11], the authors studied how the bandwidth of the spectrum-sliced ASE noise source impacts on the receiver sensitivity after transmission. In our experiment, the label optical carrier is derived from a broadband ASE noise source that has been filtered by a wavelength de-multiplexer with a 3 dB bandwidth of 0.6 nm.…”