Frequency modulated external cavity laser with photonic crystal resonator and microheater
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Date
2018-05
Authors
Butler, Sharon M.
Bakoz, Andrei P.
Liles, Alexandros A.
Viktorov, Evgeny A.
O'Faolain, Liam
Hegarty, Stephen P.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Photo-Optical Instrumentation Engineers (SPIE)
Published Version
Abstract
We demonstrate frequency modulation (FM) in an external cavity III-V/Silicon laser, comprising a Reflective Semiconductor Optical Amplifier (RSOA) and an SU8 polymer waveguide vertically coupled to a 2D Silicon Photonic Crystal (PhC) cavity. Laser FM was achieved by local heating of the PhC using a resistive element of Ni-Cr metal as a microheater to change the refractive index in the cavity hence changing the lasing frequency. Presented is a thermal study of the laser dynamics and observations of the shift in lasing frequency.
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Keywords
Semiconductor lasers , Photonic crystal , Frequency modulation , Silicon thermo-optic effect
Citation
Butler, S. M., Bakoz, A. P., Liles, A. A., Viktorov, E. A., O'Faolain, L. and Hegarty, S. P. (2018) 'Frequency modulated external cavity laser with photonic crystal resonator and microheater', Proceedings of SPIE 10682: Semiconductor Lasers and Laser Dynamics VIII, 106822D (5pp), SPIE Photonics Europe, Strasbourg, France, 22-26 April. doi:10.1117/12.2319142
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© 2018, Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.