Electro-Optic Raman–Nath Modulator Using Cascaded Periodically Poled Gratings
| Autor: | Masahide Okazaki, Toshiaki Suhara |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Spatial light modulator
Materials science Extinction ratio business.industry Physics::Optics Electro-optic modulator Grating Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optical modulator Optics Beam propagation method Modulation Acceptance angle Physics::Atomic Physics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Photonics Technology Letters. 26:2334-2336 |
| ISSN: | 1941-0174 1041-1135 |
| Popis: | We propose a new type of electro-optic modulator consisting of cascaded periodically poled Raman–Nath gratings as a building block of a 1-D spatial light modulator with a wide acceptance angle. The modulator has two grating stages of harmonic periods for an enhancement of extinction ratio. The device was designed through the beam propagation method simulation, and fabricated in MgO:LiNbO3. An extinction ratio >50 was accomplished at \(\sim 150\) V driving voltage. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|