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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 15 — May. 20, 2005
  • pp: 3058–3062

10 Gbit/s tunable dual-wavelength nonreturn-to-zero–to–return-to-zero data-format transformer based on a non-direct-current-biased Fabry–Perot laser diode

Yung-Cheng Chang and Gong-Ru Lin  »View Author Affiliations


Applied Optics, Vol. 44, Issue 15, pp. 3058-3062 (2005)
http://dx.doi.org/10.1364/AO.44.003058


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Abstract

We demonstrate the conversion of a nonreturn-to-zero (NRZ)-formatted electrical data stream into a wavelength-tunable return-to-zero (RZ)-formatted optical pulse code by externally seeding a synchronously sinusoidal-modulated Fabry–Perot laser diode (FPLD) with optical pseudorandom binary-sequence data at 10 Gbits/s (Gbps). The FPLD without a dc-biased current was modulated by use of a power-amplified sinusoidal wave signal (∼25.6 dBm) as an NRZ-to-RZ data-format transformer, which is regeneratively amplified by a closed-loop erbium-doped fiber amplifier. The gain switching and on–off keying operation of the FPLD is initiated under the seeding of self-feedback and external-injection signals. A maximum wavelength tuning range of 30 nm with a side-mode suppression ratio of greater than 36 dB is obtained. The power penalty of the NRZ-to-RZ data-format conversion at 10 Gbps is 1.5 dB.

© 2005 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(070.4560) Fourier optics and signal processing : Data processing by optical means
(190.2620) Nonlinear optics : Harmonic generation and mixing

History
Original Manuscript: April 21, 2004
Revised Manuscript: December 21, 2004
Manuscript Accepted: January 12, 2005
Published: May 20, 2005

Citation
Yung-Cheng Chang and Gong-Ru Lin, "10 Gbit/s tunable dual-wavelength nonreturn-to-zero–to–return-to-zero data-format transformer based on a non-direct-current-biased Fabry–Perot laser diode," Appl. Opt. 44, 3058-3062 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-15-3058

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