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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 3 — Mar. 10, 2005
  • pp: 156–158

A double wavelength DFB laser with an identical active area for CWDM

Hongyun Xie, Wei Wang, Fan Zhou, Jing Bian, Baojun Wang, and Lufeng Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 3, pp. 156-158 (2005)


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Abstract

A novel distribute feedback (DFB) laser which gave two different wavelengths under two distinct work conditions was fabricated. The laser consists of two Bragg gratings with different periods corresponding to wavelength spacing of 20 nm in an identical active area. When driving current was injected into one of the different sections separately, two different wavelengths at 1542.4 and 1562.5 nm were realized. The side mode suppression ratio (SMSR) of 45 dB or more both for the two Bragg wavelengths were achieved. The fabricating process of the laser was just the same as that of traditional DFB laser diode. This device can be potentially used in coarse wavelength division multiplexer (CWDM) as a promising light source and the technology idea can be used to enlarge the transmission capacity in metro area network (MAN).

© 2005 Chinese Optics Letters

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(130.3120) Integrated optics : Integrated optics devices
(140.0140) Lasers and laser optics : Lasers and laser optics

Citation
Hongyun Xie, Wei Wang, Fan Zhou, Jing Bian, Baojun Wang, and Lufeng Wang, "A double wavelength DFB laser with an identical active area for CWDM," Chin. Opt. Lett. 3, 156-158 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-3-156

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