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Y-Branch Surface-Etched Distributed Bragg Reflector Lasers at 850 nm for Optical Heterodyning

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5 Author(s)
Price, R.K. ; Univ. of Illinois, Urbana-Champaign ; Verma, V.B. ; Tobin, K.E. ; Elarde, V.C.
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This letter presents a monolithically integrated dual-wavelength source at 850 nm suitable for use in optical heterodyning. The device consists of two surface-etched distributed Bragg reflector (DBR) lasers, a Y-branch coupler, and a curved waveguide outcoupler. The Y-branch coupler and curved outcoupler are fabricated with the same epitaxial material as the DBR lasers, enabling operation as a semiconductor optical amplifier. The spectral characteristics and frequency stability of the two wavelength lasers are reported.

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 20 )

Date of Publication:

Oct.15, 2007

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