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Birefringence control for ion-exchanged channel glass waveguides
Applied Optics
|February 28, 2008
Summary
Potassium and silver double-ion exchange broadly tunes waveguide birefringence in glass channel waveguides. This method creates surface waveguides with negligible birefringence, crucial for dense wavelength-division multiplexing devices.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Waveguide birefringence is a critical parameter in optical devices.
- Ion-exchanged waveguides offer tunable optical properties.
Purpose of the Study:
- To demonstrate broad tuning of waveguide birefringence using a potassium and silver double-ion exchange process.
- To investigate the creation of surface waveguides with negligible birefringence.
Main Methods:
- Utilizing potassium and silver double-ion exchange in glass.
- Fabricating ion-exchanged channel waveguides.
- Characterizing waveguide birefringence at 1.55-mum wavelength.
Main Results:
- Broad tuning of waveguide birefringence was achieved.
- Two distinct double-ion exchange processes yielded negligible birefringence.
- The relationship between birefringence and channel width was analyzed.
Conclusions:
- Potassium and silver double-ion exchange provides effective control over waveguide birefringence.
- This technique is vital for manufacturing components for dense wavelength-division multiplexing (DWDM).
