Chirp Managed Laser and Applications

Directly Modulated and ER Enhanced Hybrid III-V/SOI DFB Laser Operating up to 20 Gb/s for Extended Reach Applications in PONs

“…This parameter was designed in view of future deployment in combination with laser arrays for WDM applications (100-GHz grid). The measured Q-factor is approximately 3.8×10 4 .…”

“…To overcome these DML challenges and allow operation in the C-band, different techniques have been successfully demonstrated, such as the use of passive filtering for chirp management [4] or simple ER and dispersion tolerance enhancement by either a delay interferometer [5] or by a micro-ring resonator (MRR) [6−8]. In this respect, the progress in integration of III-V materials on the silicon-on-insulator (SOI) platform has been proved to be promising for the cost-effective implementation of ER-enhanced DMLs [7].…”

4-PAM Dispersion-Uncompensated Transmission with Micro-Ring Resonator Enhanced 1.55-µm DML

“…Da Ros (1) , V. Cristofori (1) , O. Ozolins (2) , M.E. Chaibi (3) , X. Pang (2) , G. Jacobsen (2) , S. Popov (4) , M. Galili (1) , L.K. Oxenløwe (1) , and C. Peucheret (3) (1) DTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark, fdro@fotonik.dtu.dk (2) NETLAB, Acreo Swedish ICT, SE-16425 Kista, Sweden, oskars.ozolins@acreo.se (3) FOTON …”

“…A promising approach to tackle this challenge is optical spectral reshaping (OSR) by use of optical filters [4][5][6][7][8]. OSR has been shown to significantly enhance the achievable ER as well as to increase the dispersion tolerance for both OOK [4][5][6][7] and 4-PAM [8] signals. The use of micro-ring resonators (MRRs) to provide OSR is particularly beneficial as they can be fabricated on a silicon-oninsulator (SOI) platform as compact devices.…”

Modulation speed enhancement of directly modulated lasers using a micro-ring resonator

“…Such chirp-managed lasers (CMLs) [3] have been demonstrated with various optical filter technologies, including fibre Bragg gratings, thin-film filters, or fiber delay interferometers. However, these solutions are not easily applicable to interconnects and short range links since such optical filters tend to be bulky and unsuitable for integration.…”