Splitting-on-demand optical power splitters using multimode interference (MMI) waveguide with programmed modulations
✍ Scribed by Yanwu Zhang; Liying Liu; Xiang Wu; Lei Xu
- Book ID
- 103873445
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 1020 KB
- Volume
- 281
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
Reconfigurable multi-channel optical power splitter is proposed and its optical properties are calculated. The device can dynamically reconfigure the number of splitting channels by providing programmed refractive index modulations on a multimode interference (MMI) waveguide. A reconfigurable 3-channel optical power splitter is designed to work as 1 • 1, 1 • 2 or 1 • 3 optical power splitter depending on the state of the heat electrodes using thermo-optic modulation, and the input light can be distributed to three output channels with sequential orders. The device can work in the whole C-band (1530-1565 nm) with extinction ratio better than À29.0 dB, excess loss better than À0.45 dB, imbalance better than 0.08 dB and polarization dependent loss (PDL) better than 0.14 dB. The design conception is scalable to a multi-channel splitting-on-demand optical power splitter which can divide input light to 1, 2, . . ., N output channels equally by using the 3-channel reconfigurable optical power splitter as a building block.