Presentation 2007-08-23
Multi-Carrier Source Using Phase Modulators and Dispersion Medium
Takashi YAMAMOTO, Tetsuro KOMUKAI, Kazunori SUZUKI, Atsushi TAKADA,
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Abstract(in English) This report describes a phase-locked multi-carrier light generator that employs a CW light source, two phase modulators, and a dispersion medium. A sinusoidal phase modulation with a modulation index of π/4 and a group velocity dispersion of ±1/(4πf_m^2), where f_m is the modulation frequency, are applied to a CW light followed by a large sinusoidal phase modulation. This configuration provides a multi-carrier light with a flattened power spectrum for any modulation index of the 2nd phase modulation. By adopting a chirped fibre Bragg grating (FBG) as a dispersion medium instead of a long normal dispersion fibre, we can increase the stability of the optical output spectrum and reduce the size of the multi-carrier light generator. We have built a prototype with this configuration that generates a 61 carrier light with a 25 GHz interval and a power deviation of less than 8 dB.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-Carrier Source / Phase Modulator / Dispersion Medium / Fiber Bragg Grating
Paper # OCS2007-32
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Conference Information
Committee OCS
Conference Date 2007/8/16(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Multi-Carrier Source Using Phase Modulators and Dispersion Medium
Sub Title (in English)
Keyword(1) Multi-Carrier Source
Keyword(2) Phase Modulator
Keyword(3) Dispersion Medium
Keyword(4) Fiber Bragg Grating
1st Author's Name Takashi YAMAMOTO
1st Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation()
2nd Author's Name Tetsuro KOMUKAI
2nd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
3rd Author's Name Kazunori SUZUKI
3rd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation:(Present office)NTT Electronics
4th Author's Name Atsushi TAKADA
4th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
Date 2007-08-23
Paper # OCS2007-32
Volume (vol) vol.107
Number (no) 190
Page pp.pp.-
#Pages 5
Date of Issue