Interferometric method for preventing mode-hopping in tunable external-cavity semiconductor lasers |
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| Authors: | Ohtsu M Liou K-Y Burrows EC Burrus CA Eisenstein G |
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| Affiliation: | AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA; |
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| Abstract: | A problem in frequency-tuning of external-cavity lasers is mode-hopping between neighbouring external-cavity modes. We demonstrate a new interferometric method for monitoring mode-hoping and an automatic control circuit for a 1.3 ?m grating external-cavity laser that maintains single-mode operation when the lasing frequency is tuned. |
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