Open AccessBroadband wavelength swept source combining a quantum dot and a quantum well SOA in the wavelength range of 1153–1366 nm
Author(s) -
Jang Wooyoung,
Lim Jaeguyn,
Kim Hongsig,
Ha Jinyong
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.1508
Subject(s) - optical coherence tomography , optics , broadband , wavelength , optoelectronics , optical amplifier , quantum dot , materials science , laser , physics
A wide tuning range wavelength swept laser for high axial resolution optical coherence tomography reported. Here, a parallel configuration of a quantum dot semiconductor optical amplifier (SOA) and a quantum well SOA is utilised for broadband optical source. The total scanning range of over 210 nm (192 nm at 10 dB) from 1153 to 1366 nm is reported. To investigate the feasiblity of the swept light source, demonstrated is an optical frequency domain imaging (OFDI) system. The system sensitivity of 101 dB is reported and axial resolution of 6.0 µm in air is achieved. Finally, ex vivo OFDI imaging of human breast tissue is performed.