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http://dx.doi.org/10.3807/JOSK.2013.17.2.172

Strain-imposed External Cavity Tunable Lasers Operating for NIR Wavelength  

Kim, Jun-Whee (School of Electrical Engineering and Graduate School of Cogno-Mechatronics Engineering, Pusan National University)
Kim, Kyung-Jo (School of Electrical Engineering and Graduate School of Cogno-Mechatronics Engineering, Pusan National University)
Son, Nam-Seon (School of Electrical Engineering and Graduate School of Cogno-Mechatronics Engineering, Pusan National University)
Oh, Min-Cheol (School of Electrical Engineering and Graduate School of Cogno-Mechatronics Engineering, Pusan National University)
Publication Information
Journal of the Optical Society of Korea / v.17, no.2, 2013 , pp. 172-176 More about this Journal
Abstract
For demonstrating widely tunable external cavity lasers operating for near-infrared (NIR) wavelength, a flexible polymer waveguide with an imbedded Bragg grating is incorporated. Due to the superior flexibility of the polymer material, the reflection wavelength of the Bragg grating is widely tunable by imposing tensile and compressive strains on the flexible Bragg grating. A third-order Bragg grating is formed on the device for facilitating the fabrication method. With a superluminescent laser diode as a gain medium of ECL, the tunable laser exhibited output power of -3 dBm and a tuning range of 32 nm.
Keywords
Optical waveguides; Integrated optics; Bragg reflectors; Tunable lasers;
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