Title

Injection locked multi-section gain-coupled dual mode DFB laser for terahertz generation

Authors

Authors

M. Al-Mumin; C. Kim; I. Kim; N. Jaafar;G. F. Li

Comments

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Abbreviated Journal Title

Opt. Commun.

Keywords

distributed feedback lasers; terahertz generation; four-wave mixing; injection locking; SEMICONDUCTOR-LASERS; COMB GENERATION; WAVE GENERATION; FIBER; MODULATION; DISPERSION; RADIATION; Optics

Abstract

A dual mode multi-section gain-coupled distributed feedback laser with tunable mode spacing is subharmonically injection locked at 0.315 THz. The injected signal consists of an optical comb with harmonics 35 GHz apart and a bandwidth of approximately 1.9 THz. The optical comb is a result of strong four-wave mixing in a highly-nonlinear dispersion-shifted fiber. In order to observe locking of the multi-section laser, the output is optically downconverted to RF frequencies using the same optical comb. The locked multi-section DFB laser is a coherent and tunable optical source suitable for continuous-wave terahertz generation systems. (c) 2007 Elsevier B.V. All rights reserved.

Journal Title

Optics Communications

Volume

275

Issue/Number

1

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

186

Last Page

189

WOS Identifier

WOS:000247149100029

ISSN

0030-4018

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