Abstract
The realization of compact low-loss wavelength filters using two-dimensional integrated optics (2DIO) in a silica-on-silica material system is reported. Two designs suitable for data-communications applications are reported: a 4 × 4 channel 6.4-nm channel wavelength spacing device and an 8 × 8 channel 3.2-nm channel wavelength spacing device. The devices are fabricated in one deep etch step, and after cleaving the four-channel device has a footprint of 4 × 3 mm and the eight-channel device 8 × 6.5 mm. The average crosstalk of the devices is >22 dB for adjacent channels and 26 dB for nonadjacent channels, and their fiber-to-fiber insertion losses are <12 dB.
Original language | English |
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Pages (from-to) | 1303-1305 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 14 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sept 2002 |
Keywords
- Demultiplexer
- Gratings
- Integrated optics
- Silica
- Wavelength-division multiplexing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering