All-fiber isolator using optical fiber including quantum dots

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9618777
SERIAL NO

14424603

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An all-fiber isolator as an optical isolator comprises: an optical fiber acting as an optical light guide for propagating incident light; and a Faraday rotator for rotating by 45° a plane of polarization polarized by the polarizer. The all-fiber isolator exhibits a magneto-optic effect enough to be used as an optical isolator at a visible light wavelength by including quantum dots in a core layer and/or an internal cladding layer of the optical fiber.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ZETTO LTD#407 123 CHEOMDANGWAGI-RO BUK-GU GWANGJU 500-712

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Han, Won Taek Gwangju, KR 8 9
Jeong, Seong Mook Gwangju, KR 1 2
Ju, Seong Min Gwangju, KR 3 4
Kim, Young Woong Goyang-si, KR 19 110
Watekar, Pramod R Aurangabad, IN 3 4

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 11, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00