Abstract
This paper presents a tunable dual-wavelength laser by integration of a semiconductor gain chip with silicon-micromachined grating and mirrors onto a silicon substrate. The wavelength tuning is demonstrated by rotating the micromirror. With one wavelength being tuned and the other fixed, the laser output presents a tunable spectral separation from -28.38 to +24.18 nm. The laser output reaches 2.9 mW with far-field divergences of 37° and 30° in the vertical and horizontal directions, respectively. Besides, line broadening is observed with the reduction of the spectral separation.
Original language | English |
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Article number | 051113 |
Journal | Applied Physics Letters |
Volume | 92 |
Issue number | 5 |
DOIs | |
Publication status | Published - 15 Feb 2008 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)