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Proceedings Paper

Wavelength tunable injection locking of high power super luminescent diode with 1.4 Watt diffraction-limited output
Author(s): Yi-Shin Su; Chih-Hung Tsai; Ching-Fuh Lin
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Paper Abstract

A new-type tunable high power wavelength tunable ASE light source is fabricated. The device length is 1960μm. The waveguide is 100μm wide and tilted at 6° from the facet normal. Without external feedback, this device can provide 1.4Watt ASE light per facet at 12Amp injection current. The emitted spectrum has 20nm FWHM. The far field has narrow divergence angle and the near field is smooth without filamentation. When external feedback is applied, the slope efficiency is increased from 0.15W/Amp to 0.2W/Amp. Only 6Amp injection current is required to reach 1.06Watt output. Feedback from a grating can be used to control the emission wavelength and improve the beam quality.

Paper Details

Date Published: 15 February 2006
PDF: 8 pages
Proc. SPIE 6104, High-Power Diode Laser Technology and Applications IV, 610411 (15 February 2006); doi: 10.1117/12.645032
Show Author Affiliations
Yi-Shin Su, National Taiwan Univ. (Taiwan)
Chih-Hung Tsai, National Taiwan Univ. (Taiwan)
Ching-Fuh Lin, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 6104:
High-Power Diode Laser Technology and Applications IV
Mark S. Zediker, Editor(s)

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