Low-chirp and high-power 1.55-μm strained-quantum-well complex-coupled DFB laser

Chi Yu Wang, Zuon Min Chuang, Wei Lin, Yuan Kuang Tu, Ching Ting Lee

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


High-power, low-chirp, and low-threshold current characteristics of 1.55 μm complex-coupled compressively strained quantum-well DFB laser with a loss grating are presented. Kink-free light-current characteristics with single-mode power over 40 mW are demonstrated for uncoated devices. A relatively low threshold current of 10 mA and a high slope efficiency of 0.23 W/A have been obtained even with the loss grating employed. Stable single-mode emission was demonstrated with a side mode suppression ratio up to 54 dB, a low chirp of less than 0.3 nm under 1 Gb/s pseudoradom digital modulation and a spectral linewidth of 8 MHz.

Original languageEnglish
Pages (from-to)331-333
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number3
Publication statusPublished - 1996 Mar 1

All Science Journal Classification (ASJC) codes

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


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