OPTICAL TRANSMITTER FOR USE IN HIGH-DENSITY WAVELENGTH DIVISION MULTIPLEXING OPTICAL TRANSMITTER

Title:

OPTICAL TRANSMITTER FOR USE IN HIGH-DENSITY WAVELENGTH DIVISION MULTIPLEXING OPTICAL TRANSMITTER

Document Type and Number:

Japanese Patent JP2005151565

Kind Code:

A

Abstract:

To provide an optical transmitter for generating an RZ-AMI signal which has not only high reception sensitivity suitable for a high-density wavelength division multiplexing (WDM) optical transmission system, but also a narrow spectrum bandwidth.

The transmitter includes a precoder 201 for coding an input binary-data electrical signal, modulator drive amplifiers 202, 203 for amplifying the coded signal, a light source 206 for outputting a carrier wave, a first optical modulator 204 for modulating the phase of the optical carrier wave using the signal amplified by the amplifiers 202, 203; a second optical modulator 206 for modulating the output signal of the first optical modulator 204 into an RZ (return-to-zero) signal, and an optical filter 207 for filtering the output signal of the second optical modulator 206, in matching with a predetermined bandwidth.

Inventors:

KIN KUN
OH YUN-JE
HWANG SEONG-TEAK

Application Number:

JP2004327527A

Publication Date:

June 09, 2005

Filing Date:

November 11, 2004

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD

International Classes:

H04B10/516; H04B10/524; H04B10/556; H04B10/588; H04B10/61; H04J14/00; H04J14/02; G02F1/035; (IPC1-7): H04B10/04; G02F1/035; H04B10/06; H04B10/142; H04B10/152; H04J14/00; H04J14/02

Attorney, Agent or Firm:

Masayuki Kishida
Mizuno Katsufumi
Ogawa Hidenori
Kawakami adult

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