Two-step laterally tapered spot-size converter 1.55-μm DFB laser diode having a high slope efficiency

S. W. Park, J. H. Han, Y. T. Han, S. S. Park, B. Y. Yoon, B. K. Kim, H. K. Sung, J. I. Song

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We demonstrate a two-step lateral tapered 1.55-μm spot-size converter distributed feedback laser diode (SSC DFB LD) having slope efficiencies as high as 0.457 and 0.319 mW/mA measured at 25 °C and 85 °C, respectively. The SSC DFB LD fabricated by using a nonselective grating process has a double core waveguide structure including a planar buried heterostructure type active waveguide and a ridge type passive waveguide. The fabricated SSC DFB LD operates at 1.553-μm wavelength and shows a far-field pattern in horizontal and vertical directions of 7.3° and 11.6°, respectively.

Original languageEnglish
Pages (from-to)2138-2140
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number20
DOIs
Publication statusPublished - 2006 Oct 15
Externally publishedYes

Keywords

  • Current blocking layer
  • Slope efficiency
  • Spot-size converter distributed feedback laser diode (SSC DFB LD)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Two-step laterally tapered spot-size converter 1.55-μm DFB laser diode having a high slope efficiency'. Together they form a unique fingerprint.

  • Cite this