Title :
Y-Branch Surface-Etched Distributed Bragg Reflector Lasers at 850 nm for Optical Heterodyning
Author :
Price, R.K. ; Verma, V.B. ; Tobin, K.E. ; Elarde, V.C. ; Coleman, J.J.
Author_Institution :
Univ. of Illinois, Urbana-Champaign
Abstract :
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.
Keywords :
distributed Bragg reflector lasers; etching; laser beams; laser frequency stability; optical couplers; optical signal detection; semiconductor optical amplifiers; DBR lasers; Y-branch coupler; Y-branch surface-etched distributed Bragg reflector lasers; curved waveguide outcoupler; laser frequency stability; monolithically integrated dual-wavelength source; optical heterodyning; semiconductor optical amplifier; spectral characteristics; wavelength 850 nm; Distributed Bragg reflectors; Laser stability; Optical coupling; Optical mixing; Optical surface waves; Optical waveguides; Semiconductor lasers; Surface emitting lasers; Surface waves; Waveguide lasers; Asymmetric claddings; distributed Bragg reflector (DBR) lasers; integrated optoelectronics; microwave generation; quantum-well lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.904914
