A miniature tunable coupled-cavity laser constructed by micromachining technology

H. Cai, A. Q. Liu, Xuming Zhang, J. Tamil, D. Y. Tang, Q. X. Zhang, Chao Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


This letter presents a miniature tunable coupled-cavity laser by integrating a Fabry-Ṕrot chip, a gain chip and a deep-etched parabolic mirror using micromachining technology. The mirror is to actively adjust the gap between chips, enabling the optimal mode selection. Single-mode operation with a tuning range of 16.55 nm and a side-mode-suppression ratio of >25.1 dB is demonstrated. The device overcomes phase mismatching and instability problems encountered in conventional fixed-gap coupled-cavity lasers.
Original languageEnglish
Article number031105
JournalApplied Physics Letters
Issue number3
Publication statusPublished - 1 Feb 2008

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this