Long wavelength surface-emitting distributed feedback (SE-DFB) laser for range finding applications

Toby J. Garrod; Don Olson; Yan Xiao; Manoj Kanskar

doi:10.1117/12.909639

8 February 2012 Long wavelength surface-emitting distributed feedback (SE-DFB) laser for range finding applications

Toby J. Garrod, Don Olson, Yan Xiao, Manoj Kanskar

Proceedings Volume 8241, High-Power Diode Laser Technology and Applications X; 824113 (2012) https://doi.org/10.1117/12.909639
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

We report on our progress to obtaining a 1540 nm SE-DFB laser with curved, second order grating capable of producing extremely high peak power for eye-safe range finding applications. Higher peak power can be extracted from SE-DFB lasers since the emission area is three orders of magnitude larger than for edge emitters. Ten-times narrower spectral width and four-times lower thermal shift of emission wavelength allows for the use of narrower filters on the range finder detector, providing a higher signal-to-noise ratio. Furthermore, a curved second-order diffraction grating in our SE-DFB laser allows for a higher brightness source, which makes transmitter optics geometry more compact and simpler.

Citation Download Citation

Toby J. Garrod, Don Olson, Yan Xiao, and Manoj Kanskar "Long wavelength surface-emitting distributed feedback (SE-DFB) laser for range finding applications", Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 824113 (8 February 2012); https://doi.org/10.1117/12.909639

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