Stoichiometric Lithium Niobate (SLN) Based Linearized Electro-Optic (EO) Modulator
Abstract
Optical modulators with linearized response functions have been investigated for many years, due to their important applications in analog and RF communications and data transfer links. In particular, a linearized response function offers higher dynamic range because of lower harmonic and intermodulation distortions. Another advantage of a linearized response function is an enhanced tolerance to bias point drift. In evaluating the merit of a linearized design from a systems application perspective, the slope efficiency. defined as the change in intensity per unit change in modulator drive voltage at the operating point, is an important figure of merit. Srico addressed the development of variable coupling in directional coupler modulator devices to improve linearity of the response function. Devices were fabricated and tested in congruent and stoichiometric lithium niobate substrates. Tests on prototype devices showed spurious free dynamic range greater than MZI modulators.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2006
- Accession Number
- ADA444733
Entities
People
- Sri Sriram
- Stuart Kingsley