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Narrow Linewidth of 633-nm DBR Ridge-Waveguide Lasers

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8 Author(s)
Blume, G. ; Ferdinand-Braun-Inst., Leibniz Inst. fur Hochstfrequenztechnik, Berlin, Germany ; Schiemangk, M. ; Pohl, J. ; Feise, D.
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Compact laser sources with long coherence lengths in the visible spectral region are sought for many applications. This letter presents distributed-Bragg-reflector (DBR) ridge-waveguide (RW) lasers with an emission wavelength at 633 nm and an optical output power >20 mW. The DBR-RW lasers exhibit a technical linewidth at full width at half maximum of ~1 MHz. The emission line can be tuned via current and temperature >200 GHz. At 14 mW, the lasers show a preliminary lifetime 4000 h.

Published in:

Photonics Technology Letters, IEEE  (Volume:25 ,  Issue: 6 )

Date of Publication:

March15, 2013

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