Monolithic tunable coupled-cavity WDM transmitter in a generic foundry platform

W. Yao, G. Gilardi, D. D'Agostino, M.K. Smit, M.J. Wale

Research output: Contribution to journalLetterAcademicpeer-review

6 Citations (Scopus)
174 Downloads (Pure)


We present the monolithic integration of an extended tuning range coupled-cavity laser with traveling-wave Mach-Zehnder modulators in a low-cost generic photonic foundry platform for 10 Gbps operation. Using an intra-cavity Michelson interferometer combined with on-chip reflectors, the coupled-cavity laser shows a tuning range of 25 nm. The modulator building blocks with optimized traveling wave electrodes exhibit efficient modulation and 8.5 GHz electro-optic bandwidth, enabling 10 Gbps on-off keying. We demonstrate error-free operation of the tunable transmitter in a full photonic circuit environment. The laser modulator combination neither requires Bragg grating formation for wavelength tuning nor additional growth steps for multi quantum-well material in the modulator section and is therefore well suited for cost effective foundry platforms specifically for low-cost applications.
Original languageEnglish
Article number7835712
Pages (from-to)496-499
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number6
Publication statusPublished - 15 Mar 2017


  • Integrated modulators
  • photonic integrated circuits
  • tunable lasers
  • tunable transmitter


Dive into the research topics of 'Monolithic tunable coupled-cavity WDM transmitter in a generic foundry platform'. Together they form a unique fingerprint.

Cite this