Laminated polarizers exhibiting high performance over a wide range of wavelength

Author

Shiraishi, Kazuo ; Hatakeyama, Hiroshi ; Matsumoto, Hiroyuki ; Matsumura, Kazuhito

Author_Institution

Fac. of Eng., Utsunomiya Univ., Japan

Volume

15

Issue

6

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

1042

Lastpage

1050

Abstract

A laminated polarizer exhibiting high performance over a wide range of wavelengths has been fabricated for the first time. The polarizer consists of alternate layers of laminated silica film and metal-included semiconductor ultra-thin film as the transparent and absorptive layers, respectively. Extinction ratios of greater than 50 dB with insertion losses of less than 0.4 dB have been obtained over the wavelength range of 0.8-1.55 μm. At the wavelength 0.98 μm where previously no viable laminated polarizer had been available, the extinction ratio is as high as greater than 60 dB and the insertion loss less than 0.3 dB

Keywords

light propagation; optical films; optical losses; optical polarisers; semiconductor thin films; 0.3 dB; 0.4 dB; SiO₂; absorptive layers; alternate layers; extinction ratios; high performance; insertion losses; laminated polarizer; laminated silica film; metal-included semiconductor ultra-thin film; transparent; wavelength range; Extinction ratio; Inorganic materials; Insertion loss; Optical fiber polarization; Optical films; Optical losses; Optical materials; Optical polarization; Semiconductor films; Semiconductor materials;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.588682

Filename

588682