Lasing Mode Behavior of a Single-Mode MQW Laser Injected with TM Polarized Light

Hiroshi Yasaka, Mitsuru Naganuma

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The lasing mode behavior of a multiple quantum well (MQW) distributed feedback (DFB) laser was measured when intensity-modulated orthogonally polarized (transverse magnetic mode: TM mode) light was injected. The 3 dB bandwidth of the frequency response showed a trend different from that observed with conventional bias current modulation: at high bias currents, it decreased with increasing bias current. The maximum 3 dB bandwidth was observed when the normalized bias current was 4, and it reached 16 GHz at this bias current. The gain saturation coefficients for the transverse electric (TE) and TM modes estimated from these results were (formula omitted) 2.5 x 10-17 cm3 and (formula omitted)5. 7 x 10-18 cm3 for the TE mode, and (formula omitted) 6. 0 x 10“17 cm3 and (formula omitted) 2. 0 x 10-14 cm3 for the TM mode.

Original languageEnglish
Pages (from-to)361-367
Number of pages7
JournalIEEE Journal of Quantum Electronics
Issue number2
Publication statusPublished - 1993 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Lasing Mode Behavior of a Single-Mode MQW Laser Injected with TM Polarized Light'. Together they form a unique fingerprint.

Cite this