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Proceedings Paper

Measurement of the thermally induced wavelength drift associated with channel switching in tunable lasers
Author(s): Valentin I. Feies
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Paper Abstract

I propose a measurement technique for determining the thermally-induced wavelength drift associated with channel switching in tunable lasers. Using a tunable optical filter as frequency discriminator and a photodiode, the wavelength drift is electrically converted into a measurable voltage, while the laser is periodically switched between two channels. I account both for the filter nonlinearity and the laser output power variations during the measurement. I used this technique to evaluate the wavelength drift for a SG-DBR laser, but the method could be easily used for any other type of tunable lasers exploiting the plasma effect.

Paper Details

Date Published: 4 December 2010
PDF: 6 pages
Proc. SPIE 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V, 782127 (4 December 2010); doi: 10.1117/12.882269
Show Author Affiliations
Valentin I. Feies, Politehnica Univ. of Bucharest (Romania)


Published in SPIE Proceedings Vol. 7821:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V
Paul Schiopu; George Caruntu, Editor(s)

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