Abstract
Optical ring resonators (ORRs) are good candidates to provide continuously tunable delay in optical beam forming networks (OBFNs) for phased array antenna systems. Delay and splitting/combining elements can be integrated on a single optical chip to form an OBFN. A state-of-the-art ring resonator- based 1 x 8 OBFN chip has been fabricated in complementary metal-oxide-semiconductor-compatible waveguide technology. A binary tree topology is used for the network such that a different number of ORRs is cascaded for delay generation at each output. In this letter, the principle of operation is explained and demonstrated by presenting some measurement results on the 1 x 8 OBFN chip.
Original language | Undefined |
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Article number | 10.1109/LPT.2007.900313 |
Pages (from-to) | 1130-1132 |
Number of pages | 3 |
Journal | IEEE photonics technology letters |
Volume | 19 |
Issue number | 15 |
DOIs | |
Publication status | Published - 1 Aug 2007 |
Keywords
- EWI-10731
- IR-61837
- METIS-245722