Abstract
The integration of distributed-Bragg-reflector (DBR) lasers or distributed-feedback (DFB) lasers with semiconductor modulators has proven to be a successful approach for providing a compact, low-chirp source for long-haul optical-communication systems at multigigabit-per-second rates.1 Recently, a tunable DBR laser, combined with a bulk electroabsorption (EA) modulator operating at a 2.5 Gbit/s, showed the capability for error-free transmission over 674 km of conventional singlemode fiber.2
© 1994 Optical Society of America
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