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Widely tunable lasers are expected to be used in coherent optical communications as primary laser sources for a more agile optical network. Sampled grating distributed Bragg reflector (SGDBR) lasers have been proven to be a good candidate for these applications. SGDBR lasers, which are multi-section lasers, exhibit a more complex linewidth broadening than fixed-wavelength semiconductor lasers1. To...
A bidirectional beam propagation method (BPM) is introduced to describe the relationship between the related parameters and the insertion loss of fiber Fabry-Perot filter. The numerical simulation results indicate that the method can provide a simple and useful way for the device design.
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