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Isolator-free directly modulated complex-coupled DFB lasers for low cost applications

: Kreissl, J.; Brinker, W.; Lenz, E.; Gärtner, T.; Rehbein, W.; Bauer, S.; Sartorius, B.

IEEE Communications Society; IEEE Lasers and Electro-Optics Society; Optical Society of America -OSA-, Washington/D.C.:
Optical Fiber Communication Conference 2005. Technical digest. Vol.4 : March 6 - 11, 2005, Anaheim Convention Center, Anaheim, California
Anaheim, Calif., 2005
ISBN: 1-55752-783-0
ISBN: 978-1-557-52783-7
3 S.
Optical Fiber Communication Conference (OFC) <2005, Anaheim/Calif.>
National Fiber Optic Engineers Conference (NFOEC) <2005, Anaheim/Calif.>
Fraunhofer HHI ()

Complex-coupled and index-coupled DFB lasers are fabricated and characterized regarding their feedback sensitivity. The feedback stability is improved by 15 dB using the complex coupling. BER measurements demonstrate the potential for isolator-free transmitter application.