Related Experiment Video
Updated: Jun 20, 2026

08:39
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Amplitude and phase modulation by free-carrier injection in III-V semiconducting waveguides for the 10.6-microm
Optics Letters
|September 11, 2009
Abstract:
We give experimental results for amplitude and phase modulation by free-carrier injection in planar and rib waveguides at a wavelength of 10.6 microm. These waveguides have been formed by metal-organic chemical-vapor deposition of InP and GalnAs layers on InP substrates. Absorptions of 95% associated with phase shifts greater than 3pi have been measured for injection-current densities below 1 A/cm(2) with a planar guiding structure and drive currents of approximately 10 mA for typical channel waveguides.

