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A novel waveguided polarization mode splitter using refractive index changes induced by superlattice disordering

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4 Author(s)
Suzuki, Y. ; NTT Opto-Electron. Labs., Kanagawa, Japan ; Iwamura, Hidetoshi ; Miyazawa, Takeo ; Mikami, Osamu

The operating principle of our polarization mode splitter is based on the polarization-dependent refractive index changes induced by disordering InGaAs/InP superlattices. We disordered superlattices by the Si3N4 cap-annealing method and measured the near-field patterns to confirm that the device functioned properly at a wavelength of 1.52 μm. The crosstalk was about -10 dB. We should be able to improve the characteristics of this device by optimizing its structure. This device requires no electrical control and will be very suitable for semiconductor monolithic integrated circuits

Published in:

Quantum Electronics, IEEE Journal of  (Volume:30 ,  Issue: 8 )