Title :
Single-lobe ´Y´ coupled laser diode arrays
Author :
Welch, D.F. ; Cross, P.S. ; Scifres, D.R. ; Streifer, W.
Author_Institution :
Spectra Diode Laboratories, San Jose, USA
Abstract :
´Y´ Coupled laser arrays have been fabricated with flared waveguides at the output facet to expand the near-field spot and increase the near-field fill factor to greater than 80%. The far-field radiation pattern is predominantly single-lobe, and power outputs of 150mW CW have been obtained with threshold currents as low as 130mA.
Keywords :
optical waveguides; semiconductor junction lasers; 130 mA; 150 mW; Y coupled laser diode arrays; flared waveguides; near-field fill factor; near-field spot; power outputs; semiconductor laser; single lobe far field radiation pattern; threshold currents;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870197
