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Applied Optics

Applied Optics


  • Vol. 41, Iss. 31 — Nov. 1, 2002
  • pp: 6567–6575

Athermalized low-loss echelle-grating-based multimode dense wavelength division demultiplexer

Jie Qiao, Feng Zhao, Ray T. Chen, James W. Horwitz, and William W. Morey  »View Author Affiliations

Applied Optics, Vol. 41, Issue 31, pp. 6567-6575 (2002)

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A high-density wavelength division demultiplexer (DEMUX) capable of demultiplexing eight-channel 200-GHz optically spaced signals into a 62.5-µm multimode-fiber array is reported. The wavelength range of operation is from 1549.32 to 1560.61 nm within the International Telecommunication Union grid. The measured wavelength accuracy is within 0.04 nm. The mean insertion loss of this DEMUX is 1.95 dB. Thermal analysis and temperature testing results are reported. The temperature test cycling from 20 °C to 60 °C indicates that the wavelength thermal drift is less than 0.8 pm/°C. Adjacent cross talk is measured to be better than -45 dB. The measured data transmission bit rate of this device is higher than 3.5 Gb/s.

© 2002 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components
(090.1970) Holography : Diffractive optics
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(230.1950) Optical devices : Diffraction gratings
(260.2030) Physical optics : Dispersion

Original Manuscript: March 19, 2002
Revised Manuscript: July 3, 2002
Published: November 1, 2002

Jie Qiao, Feng Zhao, Ray T. Chen, James W. Horwitz, and William W. Morey, "Athermalized low-loss echelle-grating-based multimode dense wavelength division demultiplexer," Appl. Opt. 41, 6567-6575 (2002)

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