Title :
Enhancement of a liquid-crystal modulator using an external-cavity VCSEL
Author :
Wilkinson, C.I. ; Woodhead, J. ; Frost, J.E.F. ; Roberts, J.S. ; Wilson, R. ; Lewis, M.F.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
Abstract :
We describe a vertical-cavity surface-emitting laser (VCSEL) and liquid-crystal modulator (LCM) system. The LCM controls external optical feedback into the VCSEL to produce a single switching element that has an enhanced contrast ratio compared to an LCM alone.
Keywords :
electro-optical switches; laser cavity resonators; laser feedback; liquid crystal devices; semiconductor lasers; spatial light modulators; surface emitting lasers; enhanced contrast ratio; external optical feedback; external-cavity VCSEL; laser feedback; liquid crystal switches; liquid-crystal modulator; single switching element; vertical-cavity surface-emitting laser; Laser feedback; Liquid crystals; Mirrors; Optical feedback; Optical modulation; Semiconductor laser arrays; Surface emitting lasers; Switches; Threshold current; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
