Abstract
Widely tunable semiconductor lasers have many uses in dense wavelength division multiplexing (DWDM) networks, including wavelength conversion, optical routing and multiwavelength sparing. Among the many techniques currently being investigated to produce such lasers, 1–5 external cavity diode lasers (ECL) offer significant advantages, including wide tuning ranges, high output power, narrow linewidths with good side mode suppression and accurate wavelength control.
© 2002 Optical Society of America
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