Abstract
We report hybrid electro-optic (EO) polymer/sol-gel waveguide modulators with a structure for an EO polymer confined laterally in a sol-gel over cladding, which is fabricated by all-wet etching process. The structure enables an adiabatic transition between the sol-gel waveguide and thick EO polymer overlayer. Intensity mode is confined well in 0.9-μm-thick EO polymer overlayer, which reduces a half wave voltage (V π) due to increased overlap integral in the hybrid EO modulator. Straight channel birefringence EO modulators with the structure reduce the V π by the factor of 4 after guided wave well confined in the EO polymer. The straight channel waveguide modulator with 2.4-cm-long electrode demonstrated the V π of 13 V. Preliminary testing results using a Mach-Zehnder waveguide modulator were investigated to reduce the V π further.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 28-35 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5351 |
| DOIs | |
| State | Published - 2004 |
| Event | Organic Photonic Materials and Devices VI - San Jose, CA, United States Duration: Jan 27 2004 → Jan 29 2004 |
Keywords
- Electro-optic polymer
- Fiber-coupling loss
- Hybrid modulators
- Sol-gel waveguide
- Wet etching
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering