Photonic generation of stable microwave signals from a dual-wavelength $Al_2O_3:Yb^{3+}$ distributed-feedback waveguide laser

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Bernhardi, E.H. and Khan, M.R.H. and Roeloffzen, C.G.H. and Wolferen van, H.A.G.M. and Wörhoff, K. and Ridder de, R.M. and Pollnau, M. (2012) Photonic generation of stable microwave signals from a dual-wavelength $Al_2O_3:Yb^{3+}$ distributed-feedback waveguide laser. Optics Letters, 37 (2). pp. 181-183. ISSN 0146-9592

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Abstract:We report the fabrication and characterization of a dual-wavelength distributed-feedback channel waveguide laser in ytterbium-doped aluminum oxide. Operation of the device is based on the optical resonances that are induced by two local phase shifts in the distributed-feedback structure. A stable microwave signal at ∼15 GHz with a −3 dB width of 9 kHz was subsequently created via the heterodyne photodetection of the two laser wavelengths. The long-term frequency stability of the microwave signal produced by the free-running laser is better than ±2.5 MHz, while the power of the microwave signal is stable within ±0.35 dB.
Item Type:Article
Copyright:© 2012 Optical Society of America
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/79487
Official URL:http://dx.doi.org/10.1364/OL.37.000181
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