Tunable VCSEL with intracavity liquid crystal layer
Résumé
A tunable VCSEL is demonstrated, where tunability is achieved with an intracavity nematic liquid crystal layer. Laser effect is obtained under optical pumping. By choosing an adequate cavity length, it is possible to obtain a single mode emission on the extraordinary mode. A tuning range of more than 30 nm is demonstrated, with an applied voltage of less than 3 V.