Improvement of extinction ratios of polarization independent very short vertical directional couplers

Byung-Min Jung; Boo-Gyoun Kim

doi:10.1117/12.688848

4 October 2006 Improvement of extinction ratios of polarization independent very short vertical directional couplers

Byung-Min Jung, Boo-Gyoun Kim

Proceedings Volume 6351, Passive Components and Fiber-based Devices III; 63513V (2006) https://doi.org/10.1117/12.688848
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

Abstract

We show that the extinction ratio is improved using slight asymmetry in two core refractive indices of polarization independent very short vertical directional couplers with the double-sided deep-ridge waveguide structure. The optimum asymmetry with the maximum extinction ratio increases as the thicknesses of the inner cladding layer and the two core layers decrease. Also, the device length and the tolerance of the device length with the extinction ratio more than 30 dB decrease as the thicknesses of the inner cladding layer and the two core layers decrease.

Citation Download Citation

Byung-Min Jung and Boo-Gyoun Kim "Improvement of extinction ratios of polarization independent very short vertical directional couplers", Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 63513V (4 October 2006); https://doi.org/10.1117/12.688848

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available