Journal
OPTICS EXPRESS
Volume 13, Issue 5, Pages 1498-1507Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPEX.13.001498
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An external cavity laser has been designed for rapid but stable wavelength-tuning. To enhance the tuning stability, cavity modes are suppressed by rapidly changing the cavity length as part of the wavelength-scanning mechanism. The similar to 27 cm cavity length is modulated at speeds up to 1190 m/s, corresponding to similar to 90% of one wavelength in an optical round-trip time. The laser scans from 1370-1464 nm and back at a rate of 15.5 kHz with a measured instantaneous linewidth of similar to 0.3 nm. This high speed modeless laser has several advantages over traditional designs which will be discussed here. (C) 2005 Optical Society of America.
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