Supermode dynamics in coherent VCSEL arrays

Nusrat Jahan; William North; Kent D. Choquette

doi:10.1117/12.2615567

2 March 2022 Supermode dynamics in coherent VCSEL arrays

Nusrat Jahan, William North, Kent D. Choquette

Proceedings Volume 12020, Vertical-Cavity Surface-Emitting Lasers XXVI; 120200A (2022) https://doi.org/10.1117/12.2615567
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We study the supermode dynamics of optically coupled but electrically isolated dual-element photonic crystal vertical cavity surface emitting laser (VCSEL) arrays. The optical coupling is characterized by experimentally extracting a complex coupling coefficient, where the real component is related to the frequency splitting between the two array nonHermitian supermodes, whereas the imaginary coupling coefficient represents the gain difference between these two supermodes. The imaginary coefficient is derived from the coupling-induced excess output power. We compare three photonic crystal periods and find the largest value arising from the closest separation between two cavities. For the array with the highest imaginary component, the real part is determined which is related to the photon-photon modulation resonance, which has the potential to increase the VCSE digital modulation rate.

Conference Presentation

Citation Download Citation

Nusrat Jahan, William North, and Kent D. Choquette "Supermode dynamics in coherent VCSEL arrays", Proc. SPIE 12020, Vertical-Cavity Surface-Emitting Lasers XXVI, 120200A (2 March 2022); https://doi.org/10.1117/12.2615567

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available