Compact planar 980/1550-nm wavelength multi/demultiplexer based on multimode interference
| Autor: | J. N. Broughton, R. I. MacDonald, C. F. Janz, M. R. Paiam |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Demultiplexer
Materials science business.industry Amplifier Output coupler Laser Waveguide (optics) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics law Wavelength-division multiplexing Insertion loss Optoelectronics Magic tee Electrical and Electronic Engineering business |
| Zdroj: | IEEE Photonics Technology Letters. 7:1180-1182 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/68.466583 |
| Popis: | A compact integrated 980/1550-nm wavelength multi/demultiplexing coupler based on multimode interference effects is demonstrated. The device is useful for integration with rare-earth doped waveguide amplifiers and lasers. It is shown that the device performance can be optimized with an appropriate choice of the coupler width. The coupler is fabricated in a SiO/sub 2/-SiON deeply-etched rib waveguide system. Theoretical and experimental results for the demultiplexer configuration are presented. At an optimum coupler length of 458 /spl mu/m, contrast of about 18 dB, and on-chip insertion loss of 0.5 dB at both wavelengths are achieved. > |
| Databáze: | OpenAIRE |
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