Real-time technique for the characterization of tunable single-frequency lasers

Strzelecki, E. M.; Cohen, D. A.; Corzine, S. W.; Karin, J. R.; Coldren, L. A.
June 1988
Applied Physics Letters;6/27/1988, Vol. 52 Issue 26, p2217
Academic Journal
An all-fiber Mach–Zehnder interferometric system has been developed for characterization of tunable semiconductor lasers. The tuning rate, range, and linearity of directly frequency-modulated lasers as well as laser linewidth are measured using the same system. To investigate the features of the system and demonstrate its usefulness, 1.3 μm coupled-cavity lasers, tunable with constant amplitude, were characterized. The effects of optical feedback on laser parameters have also been investigated.


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