Title :
Systematic study on locking stability and frequency response of injection-locked multimode VCSELs
Author :
Parekh, Devang ; Zhao, Xiaoxue ; Hofmann, Werner ; Amann, Markus C. ; Chang-Hasnain, Connie J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA
Abstract :
This study has demonstrated injection locking on a multimode (MM) VCSEL with multiple locking ranges of each of the transverse modes. Resonance frequency improvement is achieved when locking is on the 1st and fundamental transverse modes. Similar improvement can be expected on the 2nd order mode as well but not demonstrated here due to the tuning range limit of the master laser. Numerical simulations of two-mode MM VCSEL also show separated locking ranges for each of the transverse modes. Rate equations including more than two modes and small-signal modulation can be used to simulate the experimental observations more accurately. Furthermore, experimental data over a full locking stability plot at various injection ratios will be taken and shown at the conference to confirm the theoretical results.
Keywords :
laser cavity resonators; laser mode locking; laser modes; laser stability; laser tuning; optical modulation; semiconductor lasers; surface emitting lasers; frequency response; full locking stability plot; fundamental mode; injection locking; injection ratios; laser tuning range limit; locking stability; multimode VCSEL; rate equations; resonance frequency; small-signal modulation; transverse mode; transverse modes; Equations; Frequency response; Injection-locked oscillators; Laser mode locking; Laser tuning; Numerical simulation; Resonance; Resonant frequency; Stability; Vertical cavity surface emitting lasers;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688621
