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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 6, Iss. 12 — Dec. 1, 1981
  • pp: 639–641

Planar Rowland spectrometer for fiber-optic wavelength demultiplexing

H. W. Yen, H. R. Friedrich, R. J. Morrison, and G. L. Tangonan  »View Author Affiliations


Optics Letters, Vol. 6, Issue 12, pp. 639-641 (1981)
http://dx.doi.org/10.1364/OL.6.000639


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Abstract

A planar Rowland spectrometer was fabricated and characterized as a wavelength demultiplexer for multimode fiber-optic applications. The spectrometer consisted of a planar multimode glass waveguide with two curved end faces and a cylindrical concave grating attached to one of the end faces. Semiconductor lasers with wavelengths between 0.825 and 0.845 μm were used for the measurements. Cross-talk isolation between two adjacent fibers with center-to-center separation of 175 μm (100 Å in wavelength difference) was measured to be 18 dB. The device's performance was limited by grating diffraction efficiency, optical aberration, waveguide dispersion, and waveguide losses.

© 1981 Optical Society of America

History
Original Manuscript: June 15, 1981
Published: December 1, 1981

Citation
H. W. Yen, H. R. Friedrich, R. J. Morrison, and G. L. Tangonan, "Planar Rowland spectrometer for fiber-optic wavelength demultiplexing," Opt. Lett. 6, 639-641 (1981)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-6-12-639

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