Electro-Optic Waveguides.
Abstract
Excellent electro-optic waveguide modulators have been developed using thin films of both ZnO and LiNb(x)Ta(1-x)O3 (LNT). In each case the performance lived up to theoretical predictions. Numerous problems affecting the operation of low-loss ZnO thin-film waveguide modulators have been solved so that stable operation has been achieved. Of the undiffracted beam 80% may be switched with 80 V applied to the device, representing an order of magnitude reduction in drive voltage compared with that of bulk modulators. The discovery of the LNT waveguides has led to yet another order of magnitude improvement in device performance. Waveguide modulators have been constructed that have operational losses less than 1 dB/cm and switch essentially 100% of 4976-A light with 8 V applied. Preliminary characterization of the waveguides in terms of formation parameters and optical performance has been made. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1974
- Accession Number
- AD0778762
Entities
People
- Jacob M. Hammer
- Michael T. Duffy
- William Phillips
Organizations
- RCA Corporation