Diode-clamped symmetric self-electro-optic effect devices with subpicojoule switching energies
- 13 April 1992
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (15) , 1809-1811
- https://doi.org/10.1063/1.107171
Abstract
We describe symmetric self-electro-optic effect devices (S-SEEDs) with clamping diodes connected to the center node of the devices to ensure both diodes of the S-SEEDs have an electric field across them at all times. These diode-clamped S-SEEDs operate over a greater wavelength range, with greater powers before saturating, and have lower optical switching energies compared to conventional S-SEEDs. An 8×8 array of diode-clamped S-SEEDs has been built and tested. We have demonstrated bistable operation with voltage swings of only 2 V over a wavelength range of 15 nm. Required optical switching energies of 340–580 fJ were measured at input powers from 500 nW to 100 μW for devices with 10×10 μm mesas. This is the lowest reported switching energy for any SEED with acceptable bistable characteristics.Keywords
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