1.5 μm two-section Fabry-Perot wavelength tunable optical filter

Author

Numai, Takahiro

Author_Institution

NEC Corp., Tsukuba, Japan

Volume

10

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

1590

Lastpage

1596

Abstract

A 1.5 μm two-section Fabry-Perot wavelength tunable optical filter is studied. As opposed to DFB filters, this wavelength tunable optical filter has the advantage that the wavelength tuning range and the transmission bandwidth can be designed independently. This two-section Fabry-Perot filter also controls the transmissivity (gain) and the transmission wavelength independently by current injection and the constant-gain and constant-bandwidth wavelength tuning is achieved. The wavelength tuning range is as wide as 188 GHz (15 Å), the constant-gain is as high as 23 dB and the constant-bandwidth is as narrow as 5 GHz during wavelength tuning. A 25-channel wavelength selection with less than -10 dB crosstalk is expected with this filter

Keywords

optical communication equipment; optical filters; optical waveguides; 1.5 micron; 23 dB; 5 GHz; constant-gain; crosstalk; current injection; transmission bandwidth; transmission wavelength; transmissivity; two-section Fabry-Perot wavelength tunable optical filter; wavelength tuning range; Band pass filters; Bandwidth; Fabry-Perot; Gratings; Laser tuning; Optical filters; Optical tuning; Optical waveguides; Passive filters; Tunable circuits and devices;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.184897

Filename

184897