Coherent Expansion of a Gain-Switched Optical Frequency Comb Employing a Dual-Stage Active Demultiplexer

Prajwal D. Lakshmijayasimha; Aleksandra Kaszubowska-Anandarajah; Aleksandra Kaszubowska-Anandarajah; Eamonn P. Martin; Manas Srivastava; Syed T. Ahmad; Prince M. Anandarajah; Prince M. Anandarajah

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper We2E.5

Coherent Expansion of a Gain-Switched Optical Frequency Comb Employing a Dual-Stage Active Demultiplexer

Prajwal D. Lakshmijayasimha, Aleksandra Kaszubowska-Anandarajah, Eamonn P. Martin, Manas Srivastava, Syed T. Ahmad, and Prince M. Anandarajah

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Programmable Photonics and Comb Lasers (We2E)

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P. D. Lakshmijayasimha, A. Kaszubowska-Anandarajah, E. P. Martin, M. Srivastava, S. T. Ahmad, and P. M. Anandarajah, "Coherent Expansion of a Gain-Switched Optical Frequency Comb Employing a Dual-Stage Active Demultiplexer," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper We2E.5.

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Abstract

We experimentally demonstrate a novel expansion architecture for a gain-switched laser, based on simultaneous injection-locking of multiple modes of a gain-switched Fabry-Perot laser, using a dual-stage active demultiplexer. A 6.25 GHz expanded comb with a spectral bandwidth over 875 GHz (expansion factor ~10) is presented.

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