Investigation of a linearly tunable external cavity diode laser in a configuration with single cavity all-dielectric thin-film Fabry-Pérot filter

Xiao Xiao; Fengqi Yu

doi:10.1117/1.3552698

1 March 2011 Investigation of a linearly tunable external cavity diode laser in a configuration with single cavity all-dielectric thin-film Fabry-Pérot filter

Xiao Xiao, Fengqi Yu

Author Affiliations +

Optical Engineering, Vol. 50, Issue 3, 034201 (March 2011). https://doi.org/10.1117/1.3552698

Abstract

The single cavity all-dielectric thin film Fabry-Pérot filter (s-AFPF) has been investigated in this paper as a means of tuning the wavelength in an external cavity diode laser (ECDL), and the means of limiting longitudinal mode hopping has been also investigated. When a TE or TM plane wave irradiates an s-AFPF, a quasilinear relationship is found in a certain wavelength range between the optical intensity peak-transmittance wavelength of s-AFPF and the cosine value of plane wave incident angle at s-AFPF. Based on this feature, we proposed and investigated a configuration with an s-AFPF in an ECDL. By theoretical calculation, a mode-hop-free wavelength tuning range of about 8 nm around 1551.5 nm was achieved. Also, a method in further extending the width of the mode-hop-free wavelength region is proposed and discussed. The ECDL can be used in the application of environmental monitoring, atomic and molecular laser spectroscopy research, precise measurements, and so on.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Xiao Xiao and Fengqi Yu "Investigation of a linearly tunable external cavity diode laser in a configuration with single cavity all-dielectric thin-film Fabry-Pérot filter," Optical Engineering 50(3), 034201 (1 March 2011). https://doi.org/10.1117/1.3552698

Published: 1 March 2011

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