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C - and L -Band External Cavity Wavelength Tunable Lasers Utilizing a Wideband SOA With Coupled Quantum Well Active Layer

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6 Author(s)

We have developed a wideband semiconductor optical amplifier as a gain chip for a C - and L -band external cavity tunable laser. We introduced a coupled quantum well structure to obtain gain spectrum covering both bands. Low threshold current deviation, over 13-dBm fiber coupled power, and high sidemode suppression ratio were demonstrated across a 77-nm tuning range.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 17 )