Thermooptic planar polymer Bragg grating OADM's with broad tuning range

Louay Eldada, Robert Blomquist, Mac Maxfield, Deepti Pant, George Boudoughian, Constantina Poga, Robert A. Norwood

Research output: Contribution to journalArticlepeer-review

71 Scopus citations


Tunable optical add/drop multiplexers (OADM's) were achieved by combining thermally tunable planar polymer Bragg gratings with optical circulators. The gratings exhibit better than 45-dB reflection with no detectable out-of-band reflection. Apodization was utilized to achieve strong sidelobe suppression, and symmetric gratings with uniform strength across the core and cladding layers were used to minimize coupling to cladding modes. These OADM's have a high-bandwidth utilization (BWU) factor of 0.92, with a minimum channel spacing of 75 GHz. They are tunable at a rate of -0.256 nm/°C. Tuning over a 20-nm range was demonstrated with a single device.

Original languageEnglish (US)
Pages (from-to)448-450
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number4
StatePublished - Apr 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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