Abstract
The authors report on a hybrid cross-linked electro-optic (EO) polymer/sol-gel Mach-Zehnder waveguide modulator with a half wave voltage (Vπ) of 0.65 V at 1550 nm. The low Vπ was achieved by a design that (1) combines both physical vertical tapers in the sol-gel core and photobleached index tapers in the EO polymer and (2) reduces the thickness of the device to 8 μm. These combined physical and index tapers result in improved optical mode confinement in the EO polymer with low adiabatic optical transition loss. The reduced thickness results in a larger field across the EO polymer for the same voltage, enabling a lower Vπ.
| Original language | English (US) |
|---|---|
| Article number | 093505 |
| Journal | Applied Physics Letters |
| Volume | 91 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 7 2007 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Enami, Y., Mathine, D., Derose, C. T., Norwood, R. A., Luo, J., Jen, A. K. Y., & Peyghambarian, N. (2007). Hybrid cross-linkable polymer/sol-gel waveguide modulators with 0.65 v half wave voltage at 1550 nm. Applied Physics Letters, 91(9), [093505]. https://doi.org/10.1063/1.2776369