Title :
Improved behavior of monolithically integrated laser/modulator by modified identical active layer structure
Author :
Steinmann, Philipp ; Borchert, Bernd ; Stegmüller, Bernhard
Author_Institution :
Corp. Res. & Dev., Siemens AG, Munich, Germany
Abstract :
For the monolithic integration of laser and modulator an identical active layer structure is proposed. The combination of different multiquantum wells (MQW´s) allows the reduction of the wavelength dependence of the absorption efficiency and the chirp. First experimental results are reported. Structures with two different MQW types and only one MQW type are compared.
Keywords :
chirp modulation; electro-optical modulation; integrated optoelectronics; quantum confined Stark effect; quantum well lasers; semiconductor quantum wells; MQW lasers; absorption efficiency; chirp; modified identical active layer structure; monolithic integration; monolithically integrated laser/modulator; multiquantum wells; wavelength dependence; Absorption; Chirp modulation; Laser excitation; Optical coupling; Optical design; Photonic band gap; Pump lasers; Quantum cascade lasers; Quantum well devices; Quantum well lasers;
Journal_Title :
Photonics Technology Letters, IEEE
