Wavelength tuning and emission width widening of ultrabroad quantum dash interband laser

C. L. Tan, H. S. Djie, Y. Wang, C. E. Dimas, V. Hongpinyo, Y. H. Ding, B. S. Ooi

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

The authors report the demonstration of the bandgap-tuned InAs quantum dash broadband laser with widened laser emission linewidth at room temperature using postgrowth intermixing technique. The 100 nm wavelength blueshifted, as-cleaved laser exhibits ultrabroad lasing spectral coverage of ∼85 nm at a center wavelength of 1.54 μm with a total emission power of ∼1 W per device. Compared to the as-grown laser, this laser shows broader lasing bandwidth (∼41 nm) with improved spectral ripple (<1 dB).

Original languageEnglish (US)
Article number111101
JournalApplied Physics Letters
Volume93
Issue number11
DOIs
StatePublished - 2008

Bibliographical note

Funding Information:
This work was supported by National Science Foundation (Grant No. 0725647), U.S. Army Research Laboratory, Commonwealth of Pennsylvania, Department of Community and Economic Development. The authors also acknowledge IQE Inc. for the growth of Qdash material.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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