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

Volume

19

Issue

20

fYear

2007

Firstpage

1610

Lastpage

1612

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.904914

Filename

4305230