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30 December 2019 Intra-cavity semiconductor laser tuning using a frequency compensating acousto-optic tunable filter pair
Adam Gambell, Nikita Simakov, Miftar Ganija, Alexander Hemming, Jae M. O. Daniel, Peter C. Shardlow, W. Andrew Clarkson, Jon Ward, Peter Veitch, Jesper Munch, John Haub
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Abstract
We have investigated the effect of the frequency shift associated with an acousto-optic (AO) interaction on the spectral quality of acousto-optically tuned external cavity semiconductor lasers. A ring-cavity was built and the wavelength controlled by a frequency compensating acousto-optic tunable filter pair, which allowed user control over the frequency shift of the interacting light. Laser spectra were recorded for a range of frequency shifts, and a 30 kHz driving frequency gave the optimal spectral response where the output spectral shape did not vary as a function of operating wavelength and resulted in <0.1 nm linewidths.
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Adam Gambell, Nikita Simakov, Miftar Ganija, Alexander Hemming, Jae M. O. Daniel, Peter C. Shardlow, W. Andrew Clarkson, Jon Ward, Peter Veitch, Jesper Munch, and John Haub "Intra-cavity semiconductor laser tuning using a frequency compensating acousto-optic tunable filter pair", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 1120027 (30 December 2019); https://doi.org/10.1117/12.2542019
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KEYWORDS
Acousto-optics

Semiconductor lasers

Tunable filters

Semiconductor optical amplifiers

Tunable lasers

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