OPTICAL FUNCTION DEVICE AND SEMICONDUCTOR WAVEGUIDE - Nippon Telegraph and Telephone Corporation

Title:

OPTICAL FUNCTION DEVICE AND SEMICONDUCTOR WAVEGUIDE

Document Type and Number:

Japanese Patent JP3946009

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To easily perform miniaturization without damaging the convenience of wavelength control.
SOLUTION: A semiconductor mode synchronous laser 1, a semiconductor optical amplifier 2 and a semiconductor optical waveguide 3 are provided. The semiconductor optical waveguide 3 sets a band gap wavelength λg so as to be δ0<(λ0-λg)/λg<δ1 (δ0-0.01 and δ1-0.05) in order to increase a tertiary nonlinear optical effect with virtual excitation of carrier without approaching an optical absorption end.

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Inventors:

Isao Tomita
Hiroaki Sanjo
Eiichi Yamada
Yuzo Yoshikuni

Application Number:

JP2001242805A

Publication Date:

July 18, 2007

Filing Date:

August 09, 2001

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

G02F1/017; G02F1/365; H01S5/026; H01S5/065; H01S5/50; (IPC1-7): G02F1/365; G02F1/017; H01S5/026; H01S5/065; H01S5/50

Domestic Patent References:

JP7064129A
JP11261168A
JP10213823A

Other References:

G.P.Banfi et al.,Third-order nonlinearity of semiconductor doped glasses at frequencies below band gap,Appl.Phys.Lett.,1995年 7月 3日,Vol.67,No.1,p.13-15

Attorney, Agent or Firm:

Tetsuya Mori

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