Frequency-swept laser light source at 1050 nm with higher bandwidth due to multiple semiconductor optical amplifiers in series

Sebastian Marschall, Lars Thrane, Peter E. Andersen, Christian Pedersen, Kevin Hsu

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We report on the development of an all-fiber frequency-swept laser light source in the 1050 nm range based on semiconductor optical amplifiers (SOA) with improved bandwidth due to multiple gain media. It is demonstrated that even two SOAs with nearly equal gain spectra can improve the performance of the light source when installed in series. This Serial SOA configuration (SSOA) is compared with the common MasterOscillator/Power Amplifier architecture (MOPA) where a single SOA is used as laser gain medium in the resonator and a second one outside as booster. We show that for high sweep rates (20 kHz) the SSOA configuration can maintain a significantly higher bandwidth (~50% higher) compared to the MOPA architecture. Correspondingly narrower point spread functions can be generated in a Michelson interferometer.
Original languageEnglish
Title of host publicationProceedings of SPIE, digital library
Volume7168
PublisherSPIE - International Society for Optical Engineering
Publication date2009
DOIs
Publication statusPublished - 2009
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII - San Jose, CA, United States
Duration: 26 Jan 200928 Jan 2009
Conference number: 13

Conference

ConferenceOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII
Number13
CountryUnited States
CitySan Jose, CA
Period26/01/200928/01/2009

Cite this

Marschall, S., Thrane, L., Andersen, P. E., Pedersen, C., & Hsu, K. (2009). Frequency-swept laser light source at 1050 nm with higher bandwidth due to multiple semiconductor optical amplifiers in series. In Proceedings of SPIE, digital library (Vol. 7168). SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.809068