Open AccessIntegrated dual optical frequency comb source
Author(s) -
Justin K. Alexander,
Ludovic Caro,
Mohamad Dernaika,
Shane P. Duggan,
Hua Yang,
Satheesh Chandran,
Eamonn P. Martin,
Albert A. Ruth,
Prince M. Anandarajah,
Frank Peters
Publication year - 2020
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.384706
Subject(s) - optics , laser , photonic integrated circuit , optoelectronics , photonics , multi mode optical fiber , materials science , integrated circuit , semiconductor laser theory , power (physics) , optical fiber , physics , quantum mechanics
A monolithically integrated dual-channel optical frequency comb source is demonstrated in this paper. Three lasers are integrated on a single chip using a regrowth-free fabrication process in a master-slave-slave configuration. The master laser's power is split equally using a 1x2 multimode interference coupler and injection locks the two slave lasers. The slave lasers are gain-switched to produce dual optical frequency combs at 4.1 GHz and 5 GHz. To the best of our knowledge, this is the first demonstration of a dual optical frequency comb source with all light sources monolithically integrated in a photonic integrated circuit (PIC).