Multiwavelength distributed-feedback dye laser array and its application to spectroscopy

Yuji Oki, Shinichi Miyamoto, Mitsuo Maeda, Nilesh J. Vasa

Research output: Contribution to journalArticlepeer-review

102 Citations (Scopus)


A multiwavelength, multistripe tunable laser array is proposed, and its application to absorption spectroscopy is demonstrated. Laser waveguides doped with Rhodamine 6 G dye were integrated on a plastic chip, and simultaneous output at different wavelengths was obtained by use of a distributed-feedback technique. A very low threshold of 3 μJ was attained, and spectrally narrowed output (<0.1 nm) was obtained. A scheme for digital spectroscopy is also proposed based on this laser array, and absorption spectroscopy of sodium atoms without wavelength scanning is demonstrated by use of a sodium-vapor cell.

Original languageEnglish
Pages (from-to)1220-1222
Number of pages3
JournalOptics Letters
Issue number14
Publication statusPublished - Jul 15 2002

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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