Upstream traffic transmitter using injection-locked Fabry-Perot laser diode as modulator for WDM access networks

Flexible TDMA/WDMA passive optical network: Energy efficient next-generation optical access solution

“…Various solutions have been proposed for colorless TRXs, for example, spectrum-sliced light emitting diodes (SSLEDs) [10], amplified spontaneous emission (ASE) spectrumsliced seeded reflective semiconductor optical amplifiers (RSOAs) [11], ASE spectrumsliced injection-locked Fabry-Perot laser diodes (FP-LDs) [12], [13], wavelength reuse with injection-locked FP-LDs [14], modulators with centralized optical carrier generation [15]- [18] and tunable optics [19]. Among the approaches previously listed, the SSLEDs and the RSOAs cannot be modulated at sufficiently high speeds to support the data rates required by the proposed architecture (up to 10 Gb/s), whereas, on the other hand, the directly modulated injection-locked FP-LDs schemes have chirp characteristics that are not suitable for the transmission reach required.…”

Simultaneous repolarization of two 10-Gb/s polarization-scrambled wavelength channels using a mutual-injection-locked laser diode

“…1(b) occurs when the injected TM mode is aligned with a TM longitudinal mode of the FP-LD. Therefore, for any injected signal that is spectrally aligned with a wavelength at which the TE and the TM modes of the FP-LD coincide, the TE component of the injected signal will be amplified with its intensity clamped and stabilized by injection locking [5] if the power of the TE component is above the injection-locking threshold. The TM component, however, is always suppressed.…”

High-speed WDM-PON using CW injection-locked Fabry-Pérot laser diodes

“…Light sources considered so far include spectrum-sliced light-emitting diodes (LEDs), amplified spontaneous emission source (ASE) from an erbium doped fiber amplifier (EDFA) [4], wavelength-seeded reflective semiconductor optical amplifiers (SOAs) [5,6], self-seeding SOAs [7], spectrum-sliced free running FP-LDs [8], and received downstream signals for remodulation [9]. Although most of these methods eliminate the need of wavelength-specific optical transmitters at the customer premises, each has its own drawbacks.…”

“…The methods using LEDs and SOAs suffer from low power budget and high packaging cost, respectively. Spectrum slicing of a free-running FP-LD suffers from strong intensity noise, while the remodulation scheme requires further development to suppress crosstalk from the residual downlink data and to alleviate the dependence of polarization state of the downlink signal [9]. The scheme of injection-locking FP-LDs using amplified spontaneous emission (ASE) noise, reported recently in [10][11][12][13], has many attractive features as compared with the other earlier proposed schemes.…”