Bipolar cascade superluminescent diodes at the 1.04-μm wavelength regime

Shi Hao Guol, Jr Hung Wang, Yu Huei Wu, Wei Lin, Ying Jay Yang, Chi Kuang Sun, Ci Ling Pan, Jin Wei Shi

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In this study, we investigate the performance of GaAs-based bipolar cascade superluminescent diodes with different cavity lengths. The device operates around the important bio-optical therapeutic 1.04- μm wavelength window. The introduction of tunnel junctions tends to minimize the nonuniform carrier distribution between distinct multiple quantum-wells (QWs), which is a problem in conventional SLDs, whose electroluminescent spectra are governed by the center wavelength of QWs near the p-side. Our devices exhibit nice electrical characteristics of low leakage current and overcome the limitation of nonuniform carrier distribution, thereby presenting a promising prospect for the near infrared white-light sources.

Original languageEnglish
Pages (from-to)328-330
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number5
StatePublished - 1 Mar 2009


  • Amplified spontaneous emission
  • GaAs
  • Superluminescent diodes


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