Distributed Bragg Reflectors,
and Integrated Photonics


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SEM of Distributed Bragg Reflectors

Y-Branch laser for integrated terahertz generation

One challenge in photonic integrated circuits is high performance tunable frequency selective reflectors for monolithic integration of lasers. We have developed a deep etched surface DBR grating that is useful for narrow linewidth DBR lasers and optical heterodyning of two lasers for THz generation.


Selected Publications:

S.D. Roh, T.S. Yeoh, R.B. Swint, A.E. Huber, C.Y. Woo, J.S. Hughes, J.J. Coleman, “Dual-Wavelength Asymetric Cladding InGaAs-GaAs Ridge Waveguides With Tunable Mode Separation,” IEEE Photon. Tech. Lett., 12, 10, (2000)

R. K. Price, V.B. Verma, K.E. Tobin, V.C. Elarde, J.J. Coleman, Y-Branch Surface-Etched Distributed Bragg Reflector Lasers at 850 nm for Optical Heterodyning, IEEE Photon. Tech. Lett., 19, 20, (2007)