Single-frequency semiconductor laser with graded-index-rod external cavity
Journal Article
·
· Chin. Phys. Lasers; (United States)
OSTI ID:6476615
The difference between the laser oscillator cavity and the graded-index-rod external cavity, and the diffraction loss of the coupling cavity are described by the amplitude coupling factors. The effect of a small displacement of the graded-index-rod on the amplitude coupling factors is discussed. The mode-selection theory of a semiconductor laser with an additional graded-index-rod external cavity was proven by the present experiments. Single-longitudinal-mode operation of the laser was obtained, with a side-mode suppression ratio greater than 35 dB, a linewidth less than 21 MHz, and a maximum wavelength tuning range of 11 nm.
- Research Organization:
- Beijing Institute of Posts and Telecommunications, Beijing
- OSTI ID:
- 6476615
- Journal Information:
- Chin. Phys. Lasers; (United States), Journal Name: Chin. Phys. Lasers; (United States) Vol. 15:11; ISSN CPLAE
- Country of Publication:
- United States
- Language:
- English
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